2. -~ Sie ats ee ae riete te Natural History Museum Library 000184791 Aes “) PO, OP \ athe seen : ate a ‘Be J aie | PROCKEDINGS OF THE Per AL PHYSICAL SOCLETY OF EDINBURGH. 1859-1862. VOLS. EDINBURGH: PRINTED FOR THE SOCIETY BY NEILL AND COMPANY. MDCCCLXIILI. CONTENTS. SESSION 1858-59. November 24, 1858. PAGE Balfour (Professor), Opening Address (Historical Sketch of the Wernerian Society, &c.), 1 I. Murray (Andrew), Contributions to the Natural Hero of the Hudson’s Bay Company’s ee Part I1., Mam- malia—(continued), ; 15 II. Wright (T. Strethill), M.D., on New Beomeoa (1. ) Page: tia producta ; (2.) Gone religata ; (3.) Corethria Ser- tularice; (4.) on Stentor a and Stentor castaneus (Plate II.), : 26 Ill. Wright (T. Strethill), M. D., Ouserrations on British To phytes: (1.) on the Eopcoduetion of Turris neglecta ; (2.) on the Development of Htppocrene Britannica from Atractylis ramosa; (3.) on the Development of Hydra tuba from Chrysaora (Plate II1.), : 34 IV. Smith (John Alex.) M D., Exhibited Specimens of the Tae tern-Fly of British Honduras) f 36 V. Smith (John Alex.), M.D., Notes of Hoses from the old Red Sandstone of the South of Scotland, : ; 36 _ December 22, 1858. Office-bearers Elected, 3 838 I, Rhind (William), Exhibited a Sremen of Teo tdendron: with Lepidostrobus attached, found by Mr R. H. Tra- quair near Colinton, : 38 TI. Wright (T. Strethill), M.D., on the Cae. or Thread- ells of the Holide, . 38 III. Smith (John Alex.), M.D., N otice of a, Skull of ne Drege. & dytes niger, the Geen ances found in a “ Devil-house,”’ Old Calabar, Africa, é : : ‘ 4] iv aig II. Il. VII. LL i CONTENTS. Smith (John Alex.), M.D., Notes of some of our Rarer Birds —Tetrao medius, a Hybrid between the Capercailzie and Blackcock; Lanius excubitor, the Great Grey Shrike; Dafila caudacuta, the Pintail Duck; Buteo Nii the Rough-legged Buzzard, . Stirling (Archibald), Notice of a Pike (Esos nie in whose Stomach a Water-hen and Water-ouzel were found, January 26, 1859. . Murray (Andrew), Contributions to the Natural History of the Hudson’s Bay sities Territories. Aves. Part I. (Plate I.), Jardine (Sir William), Tatty qe ae on some b08 the Birds received from the Hudson’s Bay sic > s Terri- tories, Smith (John Alex.), M. D., on the Hien Papen assuming Male Plumage, . Wright (T. Strethill), M.D., Oiecerun ae on British Zue- phytes: (1.) Coryne Fee e (2.) Coryne (margarica mihi) «mplexa; (3.) Bimeria vestita; (4.) Garveia nutans (Plates IIT. and IV.), . Peach (Charles W.), on some OPS Higa of Sings on two Species of Star-fishes (Gen. Ophiocoma), . Smith (John Alex.), M.D., Notice of the Ukpam, a Laie Species (probably new) of Sting Ray (Zrygon, Cuv.), found in the Old Calabar River, Africa, . Smith (John Alex.), M.D., Notice of the Passer sidinadaee the Tree Sparrow, shot near Dunbar, . ; : February 23, 1859. . Turner (William), M.B., on some Fossil Bovine Remains found in Britain, . . Wright (T. Strethill), M.D. .» on Boden ameabilis an undescribed Gymnopthalmatous Medusa, (Dr Wright also exhibited Specimens of Gromia ovifiraieas Gatke (W. H.), (Communicated by Professor Balfour), No- tice of some Birds observed in the Island of Heligoland, Bryson (Alex.), on the ied of Hasty Generalization in Geology, . : ; PAGE 45 o7 58 59 63 64 69 at 80 82 82 85 CONTENTS. v. Stewart (John Alex.), Notes on some Points in the Natural VI. VI. III. TV. History of the West Coast of Ross-shire, : Murray (Andrew), a beautiful series of varieties (in plum- age) of the Common Pheasant were Exhibited, the Pro- perty of Walter May, Esq., : : : > March 23, 1859. . Lowe (W. H.), M.D., Extract of Letter from the Rev. Hugh Goldie, Old Calabar, to Dr Greville, respecting some sin- gular Silk “ Bags” formed by Insects in Africa, . Murray (Andrew), a Series of recently discovered Hyeless Beetles, from the Caves of Carniola and Hungary were Exhibited, . Bryson (Alex.), Notice of the Tenens of Tate in Bicewun coronatum and Helix virgata, . Wright (T. Strethill), M.D., Gpeereatioas 3 on British Zoe. phytes—Kionistes ons (with figure), . Cleland (John), M.D., on the Vomer in Man and the Aim malia, and on the Soienoidal Spongy Bones (Plate V.), Peach (Charles W.), on the Discovery of Nullipores (cal- careous plants) and Sponges in the Boulder Clay of Caithness, : : : ‘ April 27, 1859. . Kelaart (Z.F.) M.D., (communicated by Dr R. K. Greville), Report on the Pearl Banks of Arippo, Ceylon, for Season 1858, . Banks (James), (coummunteated by Dp J. A. Smith), Note on the Luminosity of the Lantern-fly of Honduras, A (1.) M‘Bain (James), M.D., R.N., Notice of a Fossil Nau- tilus from the Isle of Ercopey, (2.) M‘Bain (James), M.D., R.N., Notice of the aoe decussata, found in the i: -called Raised Sea-beach Bed at Leith, : Bryson (Alen, y; Contribution to a Monoprene of feelin Spar (Part I.), . Wright (T. Strethill), M. D., , on a Method of Ghremrine Polarizing Prisms of Ni irate of Potash, . Carruthers (William), Notes on the Geology of Swellerdam, South Africa, 87 88 101 102 103 105 107 107 108 Vi CONTENTS. PAGE VII. Ornithological Notes— (1.) Dassauville (Peter A.), Anas strepera, the Gadwall, 110 (2.) Smith, (John Alex.), M.D., Anas clypeata, the Shovel- ler; Lanius excubitor, the Great Grey Shrike; Alauda alpestris, the Shore Lark, : 110 VIII. Smith (John Alex.), M.D., Notes on the Cranits of the tan (Bos brimagenius) i in the Museum of the Society of Anti- quaries of Scotland (woodcut of celts), . 111 Dr J. A. Smith Exhibited Skull of ee aig pecalia variety in shape of horns, : ee LIST OF ILLUSTRATIONS. PAGE Plate I1.—New Protozoa—Lagotia producta, Zooteirea religata, Corethria sertularie, Salpistes Miillerc, : mers Plate III.—British Zoophytes—Olavula Gossit, Hydra pala. . -d4 Plate I.—Bernicla leucolema, B. Canadensis, B, Hutchinsti, . 53 Plates III and I1V.—British Zoophytes—Bimeria vestita, Garveia nutans, Coryne impleca, Goodsirea mirabilis, young of Cydippe, Eudendrium arbuscula, Psuchastes glacialis, eke Plate V.—Vomer, &c., in Man, and the Lamb, and Rabbit, eh s 6 Woodeut—Reproductive Polyp of Kionistes retiformis, . Sa am e Bronze Celts or Axe-heads, , : ae +) HS CONTENTS. SESSION 1859-60. November 23, 1859. . PAGE Murray (Andrew), President’s Opening Address icity of the Progress of Entomology, Coleoptera), 117 I. Logan (George), Report of the Committee on "Marine Zoology, with special reference to the presence of the Whitebait (Clupea alba) in the Firth of Forth, 6 a) II. Logan (R. F.), a Specimen of the Canada Goose (Anser Canadensis), shot on Duddingston Loch, was exhibited by, : . : : . . - 131 III. Bryson (Alexander), Extracts of Letters from Dr Living- stone’s Expedition to the River Zambesi, Africa, we dell January 25, 1860. Office-bearers elected, i Sere oe Memorial to Gree ent on behalf of the Te esene Ex- pedition, . 133 J, Claparéde (Profesor E.), Can. On the iB nei of a Medusa belonging to the genus Lizzia. Communicated by T. Strethill Wright, M.D.,_ . : 133 II. Wright (T. Strethill), M.D., Note on an Teter neon Method of eg Wher aaant Objects under High Powers, . 134 Ill. Turner (W.), M.B., iRemarks on aie Masenine ete cricoideus, a Muscle of the Human Larynx (woodcut), . 135 IV. Murray (A.), (1.) Notice of the Capture of an enormous Cycloid Fish in the Bay of San Francisco, California, 138 (2.) A supposed Meteoric Stone sent from Hudson’s ma exhibited by, : ; 138 Vili v. VI. CONTENTS. Cleland (John), M.D. The Skeleton of a shes, paca exhibited by, } : : Bialloblotsky, Dr, Remarks VII. Smith (John Alex.), M.D., (1.) Notice of Pleuvoneses 0h IV. VI. IV. v. punctatus, Bloch’s (?) Top Rant, and of Nerophis equo- rews, the Aiquoreal Pipe-fish. Spennus exhibited, (2.) Specimens of Mustela erminea, the Stoat; Tringa pugnax, the Ruff; Anas clypeata, the Shoveller; and the young of Oidemia nigra, the Black Scoter, exhibited, February 22, 1860. . M‘Bain (James), M.D., R.N., Notice of various Osteological Remains found in a Pict’s House in the Island of Harris, . Bryson (Alexander), On the Structure of Pearl, Bell (Rev. T. B.), Leswalt, Notes from the Neighbearkaad of Stranraer—On the Chough (Fregilus graculus); the Migration of the Swift (Cypselus apus); and on the Effects of the late Severe Gale on the 9th September last. Communicated by John Alex. Smith, M.D., Murray (Andrew), (1.) Notice of a New Leaf Insect, (2.) Description of New Sertulariade from the Coast of Cali- fornia (Plates VI. and VII.), {3.) Notice of Chameleon tricornis, . Smith (John Alex.), M.D., a Ballers Woes (Cabri ws gylta), exhibited, Smith (John Alex.), M.D., Seecuine of Gucranedare ae pera, the Gadwall, exhibited, : : : March 28, 1860. Proposed Subscription for a Monument or Memorial to the late Professor Fleming, Hugh Miller’s Museum, Note on, . Turner (William), M.B., on the EGioloy went o Trans parent Injections in the Examination of the Minute Structure of the Human Pancreas, : . Rhind (William), Notice of Reptilian Fossils, Motayanme: . Murray (Andrew), Contributions to the Fauna of Old Cala- bar—Mammals, . Peach (Charles W.), On ne Chalk Flints of the teal of Stroma and vicinity of John-o’-Groat’s, Caithness, Peach (Charles W.), Note of the Onuphis tubicola found near Wick, ; : : ; p PAGE 138 138 139 139 141 142 143 146 146 149 14 150 150 150. III. CONTENTS. April 25, 1860. Logan (George), Remarks on Lord Advocate’s gee new Herring Fishery Bill, . Hunter (Rev. Robert), On some Obsente Marine upon an Old Red Sandstone Slab, at Mill of Ash, near Dunblane, . M‘Bain (James), M.D., R.N., Notice of Various Ornithic Fossil Bones from New Vena 2 Smith (John Alex.),“M.D., Notice of the Anguantios of old Calabar, Africa; an aeiiaal belonging to the Family Dae and apparently a new species of the Genus Perodicticus of Bennett, ; (Hair of Angwanizbo, Plate VIII. and AWoodeuts oe ) May 9, 1860. . Wright (T. Strethill), M.D., Observations on British — Zoophytes,—Halcampa Fultont, a parasitic Actinia. (Two Woodcuts), . Page (David), on New Fossil leeare fe the Old Red Sandstone of Forfarshire, . Peach (Charles W.), on the Nidus and Morne of Pon ob: della muricata, and on the young of other Annelides, . . Logan (George), Notice of Snakes and Lizards from Old Calabar, Bryson (Alex.), on te Silveifieation of Orie Bodies, Aes . M‘Bain J eo M.D., R. N. Reenter of the Eanes ad in a Pict’s house in the Island of Harris. Being Notes to Communication read 22d February 1860 (see page 141), 207 LIST OF ILLUSTRATIONS. PAGE Plate VI.—Sertularia tricuspidata, 8. labrata, S. corniculata,. 149 Plate VII.—Plumularia gracilis, P. struthionides, . a. tao Plate VIII—Hair of Angwdntibo, x z : he ae Weelents aay showing Musculus Kerato-cricoideus, is day <3 Figs. 1, 2. Hand and Foot of Angwcéntibo, . - 180 :, Fig. 3. Head of Angwantibo, : : 2) 288 3 Fig. 4. Head of Poito, - : se Soe Pf Figs. 1, 2. Hand and Foot of tenia mse : oD e Figs. 5, 6. Hand and Foot of Potio, . 191 is Fig. 1. Diagram of Transverse Section of Hamiape Fultont, a parasitic Actinia, - : 194 Fig. 2. Diagram of lateral view of Stomach of Hal. campa Fulton, : : : : i ee CONTENTS. SESSION 1860-61. November 28, 1860. PAGE Rhind (William), President’s Opening Address, . sed I. Wright (T. Strethill), M.D., Observations on British Zoo- phytes and Protozoa :— (1.) Notice of Ophryodendron abietina (Corethria sertu- arse), . 216 (2.) Onthe i esduenice Sein of Chicas (Plate 1X), 218 II. Cleland (John), M.D., On the Serial Homologies of the Articular Surfaces of the Mammalian Axis, a and Occipital Bone. (Woodcut), boar III. Smith (John Alex.), M.D., Ornithological Notes: (Specimens exhibited.) (1.) Falco islandicus (Lath). The Gyrfalcon, . . - 226 (2.) Picus major (Linn.) The Pied Woodpecker, 22 (3.) Lanius excubitor (Linw.) The Great Grey Shrike, . 227 (4.) Perdrix conerea (Linn.) Common Partridge (variety), 227 IV. Smith (John Alex.), M.D., A vo ores Sponge was exhibited, Seay December 26, 1860. Office-bearers elected, : : . te eS January 23, 1861. I. Edwards (A. M‘Kenzie), F.R.C.S.E., On Inflammation in Fishes, : 228 II. M‘Bain (James), M. D., R. N., i Eehibition of Sponges, with Explanatory Renan 5 Boa!) Ill. Logan (George), Report of the Carinaiatse on Masine Zoology ; with a Notice of the Sprat-Fishing in the Firth of Forth. (Specimens exhibited), : : . 240 ™ Xi Ly V. VI. VIE I. TIT. CONTENTS. Smith (John Alex.), M.D., Two Otters, Lutra —— shot near Edinburgh, were exhibited, &c., Smith (John Alex.), M.D., Genusioeysl Notes :— (Specimens exhibited.) (1.) Stria Tengmalmi (Tem.) ; Tengmalm’s Night-Ow], (2.) Lantus excubitor. The Great Grey Shrike, (3.) Turdus musicus. The Song Thrush (white), (4.) Alcedo ispida. The King Fisher, (5.) Hybrid Grouse, between Black Cock and Red Gree (6.) Querquedula caudacuta. The Pintail Duck, (7.) Mergus albellus. The Smew, . ‘ ; Smith (John Alex.), M.D. ae ike marinus. The Sea Lamprey, exhibited, : Davies (James B.), Specimens of various Marine Andeupdis sent by Dr E. W. Dubuc, R.N., from Ceylon, &c. were exhibited, - , February 27, 1861. . Wright (T. Strethill), M.D., Observations on British Zoo- phytes and Protozoa,—On Atractylis palliata and coc- - cinea (new species) :— (1.) Atractylis palliata, new species (Plate XI. £3 6), (2.) Atractylis coccinea, new species, — (3.) On Rhizopod Structure, Traquair (R. H.), Note on the Occurrence of Tiles in the Carboniferous Limestones of Fifeshire. (Specimens exhibited), Taylor (Andrew), Note on che eee of the Libestes Old Red Sandstone Conglomerate Bed, in a Quarry recently opened near the Grange House, Newington, . Peach (Charles W.), On the Occurrence of the oe Anchovy, and other Fishes, on the Coast of Caithness ; with a Note on the Termination of the Vertebral Column in the Tails of the Salmon tribe, . Ornithological Notes :— (Specimens exhibited.) (1.) Dassauville (P. A.), Larus glaucus. Glaucous Gall, (2.) Smith (John Alex. a M.D. ee Bewickii, Bewick’s’ Swan, March 27, 1861. . Logan (R. F.), Note on the Occurrence of Vanessa poly- chloros and Cheimatobia borearta in Edinburghshire. (Specimens exhibited), PAGE 244 244 245 245 245 245 247 247 248 249 250 251 251 253 254 256 259 259 260 CONTENTS. II. M‘Bain (James), M.D., R.N., Remarks on some Comparative Anatomical Distinctions between the Skull of the Manatus senegalensis and that of a Manatee from the Bay of Honduras. (Specimens exhibited), III. Livingston (John S.), Historical Review of the State of our Knowledge respecting Metamorphism in the Mineral Kingdom, with special regard to certain recent Researches, April 24, 1861. Logan (George), Memorial against Salmon Fisheries Act (Scotland), I. Mitchell (J. M.), Some Statements: in Gane Sc N a History of Fishes,’ as to the Herring, shown to be erroneous, MW. Wricht. (1. Strethill), M. D., Observations on “Brive Zoophytes and Protozoa :— (1.) On the Reproductive Elements of the Rhizopoda (Plate XE) : : (2.) On the Beroduciion ae Cucogeer : (3.) On Dendrophyra radiata and D. erecta (nov. gen. et sp.), - (4.) On Lecythia Parco fun gen. ie a) : Appendix to Coinistes reticularis (rotnastes retiformis), p. 91. (Weoodcut), Appendix to Hydractinia, vol. i. p. 192, : II. Dubuc (E. W.), M.D., R.N., Notes on Deep-Sea Sonntines. Communicated by Mr James B. Davies, IV. Logan (George), Further Notice of the Herring ind Sorat Fishery of the Firth of Forth, Mitchell (J. M.), exhibited Sprats with developed milt ee - roe, V. Young (William S. ), gues of a ehecmen of the Sona thus Aiquoreus, taken in a lobster net off Inchkeith 17th April 1861, (Smith (John Alex.), M.D., i Notes ‘of the Biyioreal Bape Fish (Nerophis quoreue, taken at the Isle of May), . VI. Smith (John Alex.), M.D., Crew porzana. Spotted Crake. (Specimen exhibited), ‘ X1ll PAGE 261 267 269 269 270 274 LIST OF ILLUSTRATIONS. Plate 1X.—Reproduction of Chrysaora and Truncatulina, Plate X.—Ophryodendron abietinum, : Plate XI.—Ophryodendron, Dendrophyra, Ateame iio Plate XII.—Hydractinia, Lar satellarum, Trichidra pudica, Cunina globosa, Sertularia pumila, Woodecut—Fig. 1. Atlas of a young Chelonia virgata, an Fig. 2. Dorsal vertebra of a young seal, ” Fig. 3. Superior aspect of the axis of a human feetus, -, Fig. 4. Inferior aspect of the atlas of a human feetus, af Fig. 5. Cervical vertebra from a human foetus, 5 Ovisac of Hudendrium confertum, III. EY. il II. III. CONTENTS. SESSION 1861-62. November 27, 1861. Wright (T. Strethill), M.D., President’s Opening Address, . . Anderson (John), M.D.,On the Anatomy of Sacculina, with a description of ine Species (Plate XIII.), . Alder (Joshua), Esq., Observations on British omy anos 1. Hydractinia arcolata, n. sp. 2. Atractylis arenosa, n. sp. (Plate XIV.) Communicated by T. Strethill Wright, M.D., Wright (T. Strethill), Jats) Bee On Reproduction in pire vitrina (Plate XV.), Charlesworth (Edward), Esq., Eatabited various Objects ae Natural History, and a new mode of mounting very small specimens, December 16, 1861. Office-bearers Elected, . (1.) Turner (William), M.B., On a Noneniped Muscle con- nected with the Orbital Pee of Man and Mam- mals, (2.) Notes on the Ortrence ce the Vaneutas Ker oe cricot- deus, January 22, 1862. Address of Condolence to Her Majesty, M‘Kenzie (James), Esq., Notes on the Habits of ne Bene By an Eye-witness. Communicated by A. Murray, Esq., Anderson (John), M.D., On an apparently New Form of Holothuria (Plate XVI1.), ° . . : Shearer (R. I.) and Osborne (H.), Notes on the Ornithology of Caithness (specimens exhibited). Communicated by John A. Smith, M.D., IV. Smith (J. A.), M.D. Onn olnsteel Notes. ere atic (Glaucous gull), Mioulis alle ane ae &e. ae mens exhibited), PAGE 295 304 314 316 318 319 319 326 328 329 3ol 334 347 XV1 CONTENTS. V. Smith (Dr), Exhibited Plaster Casts of the Skull of the Gorilla, and also of its Brain Cavity, February 26, 1862. I, Elliot (Walter), Esq., Exhibition of Drawings, by Native Artists, of Animals collected in India, belonging to the different Great Divisions of the Animal Kingdom. Communicated by John Coldstream, M.D., ; Il. Wright (T. Strethill), M.D., Observations on “Britis Fae phytes. 1. Atractylis arenosa. 2. Atractylis miniata, 3. Laomedea decipiens (Plate XV.), : III. Thomas (Captain F. W. L.), R.N., On the Gevlneres Age of the Pagan Monuments of the Outer Hebrides, IV. Cleland (John), M.D., Description of several Fishes from Old Calabar. Communicated by William Turner, M.B., V. Weir (Thomas Durham), Esq., Note of the Common Squirrel (Sciurus vulgaris) Feeding on Birds and their Eggs. Communicated by Dr John Alex. Smith, . VI. Smith (John Alex.), M.D., Exhibited ee — of the Lepus timidus, VII. Smith (John Alex.), M.D. /Ongralaran Notes: — (epee exhibited.) (1.) Turdus Merula (Penn). Blackbird (pied), (2.) Lowa curvirostra (Penn.) Common Crossbill, (3.) Picus Major (Penn.) Great Spotted Woodpecker, (4.) Hybrid Grouse, between Blackcock and Red Grouse, (5.) Botaurus stellaris (Selby.) ‘The Common Bittern, (6.) Podiceps cristatus (Penn.) Great Crested Grebe, (7.) Podiceps rubricollis (Penn.) Red-necked Grebe, (8.) Podiceps cornutus (Penn.) The Horned or Sclavonian Grebe, © : (9.) Podiceps awritus Bre ) The Barca Gree Hargitt (Edward), Esq., Exhibited a large Specimen of the Wild Cat (Felis catus ferus), VIII. Brown (Robert), Exhibited a Specimen oe Astropton scutatum from Davis Strait,—with Note, March 26, 1862. I. Logan (R. F.), Esq., Notice of Indian Insects exhibited at last meeting by Mr Elliot, II. M'Bain (James), M.D., R.N., Notice of the Developmen or Fish Spawn from ie Firth of Forth, p III. Mitchell (J. M.), Esq., (1.) On the Difference between ae young Herring, Clupea harengus, and the Sprat, ie sprattus. (2.) On the Food of Fishes, : 1V. Anderson (John), M.D., On Phryxus Paguri, PAGE 348 348 349 352 359 361 363 363 363 363 364 364 365 366 367 367 368 368 372 373 374 374 CONTENTS. V. Wright (T. Strethill), M.D., Observations on British Zoo- phytes and Protozoa. 1. Clava nodosa ; 2. Acharadria laryna ; 3. Zootearea religata ; 4. Freya (Lagotia) obstet- rica, Freya stylifer ; 5. Chetospwra marituma ; 6. Oxy- tricha longicaudata (Plates XVII., XVIII., XTX.), VI. Peach (Charles W.), Esq., On peculiar Hooked Spines on Ophiocoma bellis, with Observations on the Spines of other Ophiocome (Plate XX.) (Specimens and Draw- ings were exhibited), VII. Carruthers (William), a ey las, The Geology of of Moffat, Dumfriesshire, April 23, 1862. - I. Wallace (John), M.D., Observations on the Phocide of the Greenland Seas. (Communicated by R. Brown, Esq.) II. (1.) Smith (John A.), M.D., Notice of a Mass of Meteoric Iron, found in the Village of Newstead, Roxburghshire ; with some General Remarks on Meteorites (Plate XXI.). (Three electro-cuts), (2.) Thomson (Murray), M.D., Annee of the Mcleprolite described in the foregoing paper by Dr J. A. Smith, II. Young (William 8.), Hisq., On Professor M‘Coy’s Ray with: out a Name, taken in the Firth of Forth, = 1861. (The Specimen was exhibited), : May 7, 1862. I. Smith (John Alex.), M.D., Notes of the Capture of the Red- Crested Whistling Duck (Puligula rufina, Selby), in Argyleshire ; and of the Common Wild Duck ee on a Tree, Il. Traquair (R. H.), M.D., Note on a ue of Abuormality i in the Ossification of ale Parietal Bones in the Human Fetus, . III. M‘Bain (James), M. Dy, ns, N,, Agnaerie @ on qe S0- failed Raised Sea-beach Bed in ae Neighbourhood of Leith, and its Relations to other Deposits, IV. Bryson (Alexander), Esq., F.R.S.E., On the Danger of Biase Generalization in Geology ; soon Special Reference to the so-called Raised Sea-beach at Leith (woodcut), - V. (1.) Wright (T. Strethill), M.D., On the Pigmental System of the AXquoreal Pipe-fish, (2.) Smith (John Alex.), M. 1D, Description of this Alquo- real Pipe-fish, VI. Wright (T. Strethill), M. Dy OibearaiRans « on British Zon phytes. (1.) Tope Proteus ; (2.) Trichydra pudica ; (3.) On the Development of Pycnogon Larve within the Polyps of Hydractinia (Plates XVII, XXII), 348 391 396 414 ANT 420 4291 XVill CONTENTS. VII. Logan (George), Esq., Report of the Committee on Marine Zoology. (Specimens were exhibited), VIII. Thomson (Murray), M.D., and Binney (Mord), Esq: 4 On the Composition of a Bsenia! Steatite, IX. Brown (Robert), Esq., Exhibited a anal Fetal Specimen of a Narwal, - : ; LIST OF ILLUSTRATIONS. Plate XIII.—Anatomy of Sacculina, Plate XIV.—1-4, Hydractinia areolata ; 5-7, Aivicovae are- NOSG, : : Plate XV.—1-6, Z’quoria prin, : » oo» 4-10, Atractylis arenosa, minata, ree deci- piens, : Plate XVI.—New Form of Holoiaaia, Plate XVII.—7, 8, Acharadria larynx, a Se 1-6, Vorticlava Proteus, . Plate XVIII.—Zooterea religata, Plate XIX.—1, Zooteirea religata; 2, 3, Praja nad ucta ; 4, F. obstetrica; 5, 6, F. se deay 7, 8, Oxy- tricha longicaudata, . : : Plate XX.—Ophiocoma bellis, O. granulata, Plate XXI.—Meteoric Iron, from Roxburghshire, Plate XXII.—Trichydra pudica, “ Electro-cuts—Impression of Etched Surface of the Meteoric Iron, A Impressions of Etched portions of the Meteoric Iron, Woodcut—Section of Sand-pit, Junction Road, Leith, PAGE 306 314 316 349 331 378 439 378 381 382 396 440 405 413 422 GENERAL LIST OF ILLUSTRATIONS. PAGE Plate —Bernicla leucolema, B. Canadensis, B. Hutchinsii, . 53 Plate Il.—New Protozoa—Lagotta producta, Zooteirea religata, Oorethria sertularie, Salpistes Miillert, . ; 26 Plate I1I.—British Zoophytes—Clavula Gossu, Hydra ‘aba, : 34 Plates III, and [V.—British Zoophytes—Bimeria vestita, Garveia nutans, Ooryne implexa, Goodsirea mirabilis, young of Cydippe, Hudendrium arbuscula, Psuchastes glacialis, . 59 Plate V.—Vomer, &c.—In Man, and the Lamb, and Rabbit, . 97 Plate VI —Sertularia tricuspidata, 8. labrata, S. corniculata, 149 Plate VIL—Plumularia gracilis, P. struthionides, : : 149 Plate VIII.—Hair of Angwantzbo, : ; 187 Plate [IX.—Reproduction of Chrysaora and Pedneang: : 218 Plate X.—Ophryodendron abietinum, 974. Plate X1.—Ophryodrendron, Dendrophyra, Atraciyis palliata, 276 Plate XI1.—Hydractima, Lar sabellarum, Trichidra pudica, Cunina globosa, Sertularia pumila, ‘ : : 276 Plate XIII.—Anatomy of Sacculina, ; 306 Plate XIV.—1-4, Tae actinia areolata ; 5-7, Aivociiits are- NOSH, » : : : 5 314 Plate XV.—1-6, Baune vitrina, : 316 Ra 7-10, Atractylis arenosa, miata, Rapnedes eee: prens, . 4 : : ; 349 Plate XVI.—New fort of HH olocuurse, ; : : : 301 Plate XVII.—7-8, Acharadria larynx, . : uty, 378 By oh 1-6, Vorticlava Proteus, . : : 439 Plate XVIII.—Zooteirea religata, ; 378 Plate XIX.—1. Zooteirea religata ; 2, 3, ianene prone: ii F’. obstetrica ; 5,6, F. stylifer ; 7, 8, Oxytricha oneetena: data, . : : : : J8l Plate XX.—Ophiocoma is 0. amulet 382 Plate XX I.—Meteoric Iron, found at Newstead, Roxburghshire, 396 Plate XXII.—Trichydra pudica, ‘ 440 Woodeut— Reproductive Polype of Kionistes reteformis, . : 91 a Bronze Celts or Axe-heads, . : : : 115 xX 3) 99 GENERAL LIST OF ILLUSTRATIONS. PAGE W oodeuts—Larynx, showing Musculus Kerato-cricoideus, 137 Figs. 1, 2. Hand and Foot of Angwdntibo, 180 Fig. 3. Head of Angwdntibo, 188 Fig. 4. Head of Potto, 189 Figs. 1, 2. Hand and Foot of nineey ee 190 Figs. 5,6. Hand and Foot of Potto, 191 Fig. 1. Diagram of Transverse Section of Binion Fulton, a parasitic Actinia, 194 Fig. 2. IL Sesame of lateral view of Sicmael of Hal- campa Fultont, : 195 Fig. 1. Atlas of a young Chelansan virgata, 225 Fig. 2. Dorsal vertebra of a young seal, 225 Fig. 3, Superior aspect of the axis of a human fetus, 225 Fig. 4. Inferior aspect of the atlas of a human fetus, 225 Fig. 5. Cervical vertebra from a human feetus, 225 Ovisac of Hudendrium confertum, 279 Hlectro-cuts—Impression of Etched Surface of the Meteone ae from Roxburghshire, : 405 Impressions of Etched portions of the Meteorie ne 413 Woodcut—Section of Sand-pit, Junction-Road, Leith, 422 ERRATA. Page 228, top line, for 1861, read 1860. — 297, line 17, for polychlora, read polychloros. — 297, line 18, for borearea, read borearia. — 442, line 27, for MBean, read M‘Bain. — 442, line 30, for Apenhais, read Aporrhais. — 442, line 34, for Echinus, read Echinoderm. PROCHEDINGS OF THE ROYAL PHYSICAL SOCIETY. KIGHTY-EIGHTH SESSION, 1858-59. Wednesday, November 24, 1858. Professor Baurour in the Chair. The following Gentlemen were elected Members of the Society :— William Carruthers, Esq. ; Wiliam Turner, M.B., Demonstrator of Anatomy, University of Edinburgh. Foreign Member—Count Victor Motschoulsky, St Petersburgh. The Donations to the Library included the following, and thanks were voted to the donors :-— 1. Proceedings of the Royal Society of Edinburgh, Session 1857-58. From the Society.—2. Canadian Journal, Toronto, Nos. XV., XVI., and XVII. From the Canadian Institute, Toronto.—3. Papers read to the Botanical Society of Hdinburgh. By George Lawson, Ph.D. From the Author.—4. The Practical Naturalist’s Guide. By James Boyd Davies. From the Author. Professor Batrour then delivered the Opening Address as follows :— It has been the usual practice in the Society that the retir- ing President shall give a short address on the occasion of his demitting office, and, in conformity with that custom, I have been called upon by your Secretary to make a few remarks this evening when I conclude my period of probation as Pre- sident, ‘The task is by no means an easy one, from the diffi- culty of finding some new topic of interest on which to ex- patiate. The history of the Society has been already given by my predecessors, and the obituaries of the eminent mem- bers who have lately been taken from us (a topic which in most Societies occupies much of the opening addresses), have VOL. II. A 2 Proceedings of the Royal Physical Society. already been given by Fellows of the Society, more competent for the duty than myself. It has occurred to me that a brief notice of two Edinburgh Natural History Societies, which have now ceased to exist, and more particularly of the Wernerian Society, might not be altogether uninteresting. Natural History studies are peculiarly fitted to call forth the principles of association. There is something connected with the prosecution of them which draws students together, and which binds them by ties of no ordinary kind. The study of the Rocks and Minerals, Plants and Animals, of our globe naturally leads to extended wanderings over mountain and plain, by river side or ocean shore, during which the com- panionship of friends becomes especially valuable and cheer- ing. ‘There is a sociality in such pursuits which insensibly unites men in scientific brotherhood. Those who have joined in natural history excursions know well the fascination of such rambles, and look back with pleasure to the friendships thus formed. The collections made become also bonds of union. For every naturalist knows the importance of the interchange of specimens. ‘The system of exchange has led to the formation of many associations. It was this which in a great measure led to the institution of the Botanical Society of this city. Edinburgh has been long celebrated for its Natural History Societies. ‘The situation of our city, the rich fauna and flora of its neighbourhood, its instructive geological and mineralo- gical features, have rendered it one of the places best fitted for the prosecution of natural science in its practical details. The student has ample opportunities of pursuing science in all its departments. Our museums and gardens also supply a valu- able means of acquiring information. Thus it is, that as a school of natural science, there is scarcely any city which pos- sesses greater advantages. It might have been expected, therefore, that scientific societies would spring up among us. . _ The Physical Society was among the earliest established, and it speedily acquired great eminence from the activity and zeal of its members. It embraced the whole range of science, both natural and physical, and it especially called forth the energies of young men who were zealously cultivating science within the walls of our University. It has had its reverses no doubt, President's Address. a . but it still exists, and has now entered on its eighty-eighth session ; and though its resources are not so large as they once were, the zeal of its members I trust is not abated. We have among us many active naturalists whose labours have advanced natural history, and whose original researches have increased the fame and reputation of our school. Besides the Royal Physical Society, there were other Na- tural History Societies in Edinburgh, especially among the stu- dents of the University. One of them was the Plinian Society, which, during its short existence, tended much to foster the spirit of inquiry, and to call forth the efforts of the junior naturalists of Edinburgh. It was essentially a students’ society, and met within the walls of the College. It began its ex- istence on 14th January 1823, and continued to meet till about the year 1835. It enrolled among its members many young naturalists who afterwards acquired eminence, such as Wm. Baird, now in the British Museum; M‘Viecar, now minister of Moffat ; Jameson Torrie, well-known for his Natural History labours in connection with his uncle Professor Jameson; Ains- worth, who published Travels in the District of the Huphrates ; Cheeke, the editor of a valuable Natural History Journal; Malcolmson, celebrated for his geological pursuits in India ; Anderson of Inverness, whose guide to the Geology and Na- tural History of the Highlands is so justly praised; Robert Grant, now Professor of Comparative Anatomy in London; John Coldstream, one of the Fellows of our Society, whose labours in Zoology are deservedly famous; Clouston, now a clergyman at Sandwick, who has done much to elucidate the flora of Orkney ; Woodforde, who published the Flora of Edinburgh ; Lombard of Geneva; John Addington Symonds, now a distinguished physician at Bristol; Hugh Falconer, the Indian Botanist and Zoologist; Browne, one of the Commis- sioners of Lunacy, and many others. If I were to analyse the proceedings of that Society, I could show that many of those gentlemen exhibited in their communications the early dawn- ings of their devotion to those departments of science in which they afterwards attained distinction. I feel that not a little of the zeal with which I prosecuted botany was due to my early connection with this Society. 4 Proceedings of the Royal Physical Society. Unfortunately, like some other societies, it had its decay . ‘and decline, and, after a brief existence of about twelve years, it ceased to exist. On 6th Febuary 1841, the society was dis- solved, and its books and herbarium were divided between the Royal Medical and the Hunterian Medical Societies. In its flourishing days this Society was supported mainly by students, and it is probable that its decline may be attri- buted in some measure to the want of some zealous senior members resident in Edinburgh, who, by associating with stu- dents in practical natural history, would have kept up the vigour of the Society. We now come to another Natural History Society, the na- ture of which differed essentially from that of the Plinian and other student-societies, and whose period of existence ex- tended over more than forty years, but which has also come to a termination—I mean the Wernerian Natural History So- ciety. This Society owed its origin to Professor Jameson, whose enthusiastic devotion to natural history, and whose eminence in mineralogy rendered his name famous all over the world. TheSociety thus instituted by him was restricted to senior naturalists. While it lasted, it rendered good ser- vice to science, and by the publication of its valuable Memoirs acquired a wide-spread reputation. The Wernerian Society commenced in 1808, and the fol- lowing is the record of its foundation :— COLLEGE MusEeuM, Ldinburgh, 12th January 1808. The following gentlemen being met, viz. :— Rosert Jameson, F.R.S.E., Professor of Natural History. Wititiam Wricut, M.D., F.R.SS. L. & E. Tuomas Macknienut, D.D., F.R.S.E. Joun Barcray, M.D., F.R.S.E., Lecturer on Anatomy. Tuomas Tuomson, M.D., F.R.S.E., Lecturer on Chemistry. Col. Stewart Murray Fuiierton of Bartonholm. ' Cuarztes Anperson, M.D., F.R.C.S.E, Patrick Waker, F.L.S., Advocate. Patrick Neiitu, A.M. They resolved to associate themselves into a society for the purpose of promoting the study of Natural History; and President’s Address. 5 in honour of the illustrious Werner of Freyberg, to assume the name of the Wernerian Natural History Society. Professor Jameson having been called to the chair, the fol- lowing office-bearers were unanimously elected :— Professor Jameson, President. Dr Wricut, Rev. Dr ee a Dr Barciay, and Dr Tuomson, Vice-Presidents. ; Mr Waker, Treasurer. Mr Neitz, Secretary. It being understood that the Society should consist of honorary, foreign, non-resident, and ordinary members, it was moved by the president, and unanimously agreed to, that Professor WERNER of Freyberg, Sir JosepH Banks, Bart., President of the Royal Society, and Ricuarp Kirwan, lsq., President of the Royal Irish Academy, be enrolled as the first honorary members of the Society. The following gentlemen were then chosen non-resident members :— Dr James Epwarpb Situ of Norwich, President Linnean Society. Rev. Dr Joun Stuart of Luss. Dawson Turner, F.R.S., Yarmouth. Rospert Brown, F.R.S., F.L.S. The Hon. Mr Grevinte, F.R.S. Cuartes Harcuert, F.R.S. Count de Bournon, F.R.S. Groree SHaw, M.D., F.BS. Wm. Henry, M.D., Manchester. And the following were elected foreign members :— M. FrepEricx Mous, Styria. Professor Karsten, Berlin. Professor Kiaprotu, Berlin. M. Von Bucu, Berlin. 6 Proceedings of the Royal Physical Society. _M. Von Humeotpt, Berlin. M. FReiustesen, Thuringia. M. H. Meuner, Freyberg. M. Herper, Freyberg. Such then was the institution of the Wernerian Society. On the 20th January 1808, the laws of the Society were drawn up by a committee. In regard to resident members it is ruled that the number shall not exceed 100; and in regard to honorary members that they shall not exceed 10. - The meetings were held in the College Museum, or in a room adjoining to it, at two o’clock in the afternoon. All natural history specimens presented to this Society were to be deposited in the College Museum. A charter or seal of cause was subsequently obtained from the Town-Council, and the Society was incorporated on 10th February 1808, under the name of the Wernerian Natural History Society. The first meeting for public business took place on 2d March 1808, in the College Museum. The record of the proceedings of the Society from that time up to April 21, 1838, is printed as an appendix to the published Memoirs of the Society, vols. 11.-vil. ‘In these volumes valuable papers are given on various de- partments of Natural History. Among the contributors of Papers we may notice the fol- lowing :—In Geology and Mineralogy—Professor Jameson, Mr Bald, Dr Fleming, Dr Macknight, M. Haidinger, Dr Adam, M. Boué, Mr George Anderson, Mr Trevelyan, Dr Hib- bert, Mr Witham, Mr R. J. Hay Cunningham, Mr James Smith, and Mr Torrie. In Chemistry—Dr Thomas Thomson, and Dr Murray. In Botany—Mr Robert Brown (one of his early papers on the Natural Order Asclepiadeze was read on 4th November 1809), Messrs David and George Don, Mr R. K. Greville, Dr Walker Arnott, Mr Macgillivray, Mr Mar- shall, Mr Francis Hamilton, Rev. Dr Scot. In Zoology and Comparative Anatomy—Mr Montague, Dr Fleming, Mr Neill, Dr Barclay, Mr Leach, Mr Thomas Brown, Mr James Wilson, Presideni’s Address. i Dr Traill, Dr Dewar, Mr Swainson, Mr Edmonston, Dr Knox, Mr Selby, Dr Hibbert, Dr Richardson, Mr Coldstream, Rev. David Scot, Mr William Jardine, Mr Parnell, Dr Grant, Mr Macgillivray, Dr Craigie, Mr J. Duncan, and Mr Edward For- pes. In Meteorology—Rev. Dr Scoresby. In Physical Science —Mr Stevenson, Dr Brewster, Mr Adie, and Mr Deuchar. The Society continued to hold meetings with more or less regularity up to 1850; and I have drawn up from its records the following notices, in continuation of its published pro- ceedings :— On the 11th August 1838, the Society proposed to encour- age the study of Natural History, by the offer of premiums for the best essays on certain subjects in Hydrography, Geology, Zoology, and Botany. These were subsequently advertised. | The thirty-second session of the Society was opened on 24th November 1838, by Professor Jameson; and on the 15th December of that year, papers were read by Dr Traill on the Cheirotherium ; and by Sir John Dalyell on a singu- lar mode of propagation in some of the lower animals ; besides communications on the Geology of Melrose and Harlston, and on Meteorology. On 12th January 1839, Professor Jameson exhibited Lab- rus trimaculatus and Gadus minutus, two rare fishes which had been found in the Pentland Firth; and the carcass of a large cinereous eagle, ‘“ being one of the two birds of that kind which had the boldness to attack a traveller near Newton- Stewart in Galloway.” On 26th January 1839, Mr Smith of Jordanhill read obser- vations on the elevated marine deposits in the basin of the Clyde, accompanied with remarks by Deshayes, Lyell, and Sowerby, on the shells unknown as British imbedded in them, from which it appeared that, out of twenty species, seven are at present to be found recent in the Arctic Seas, five in the Crag and Sicilian Newer Pliocene, and that the rest are peculiar to the deposit in question. Edward Forbes was proposed as a member by Professor Jameson, and his nomi- nation was seconded by Dr Neill. He was admitted on 9th February. At the same meeting, Professor Wallace explained 8 Proceedings of the Royal Physical Society. by a model his solution of the Miner’s Problem, in reference to the security of the foundation of the houses in Moray Place. On the 23d February, Mr E. Forbes read a communication on the Asteriadee of the Irish Sea, which was afterwards pub- lished in the Society's Memoirs. This was one of Forbes’s early papers, and gave indications of what might be expected from his natural history labours. On 9th March 1839, Mr Cunningham read a valuable paper on the Geology of the islands of Eigg, Rum, and Canna, which was subsequently published in the Society’s Me- moirs. The session was closed on 20th April 1839; and the twenty- third session was opened on 23d November, when, among other notices, I find that Edward Forbes was made a mem- ber of Council. On 7th December 1839, Mr R. J. Hay Cunningham read an essay on the relations of granite and trap to stratified rocks, illustrating it by twenty-six large coloured sections, showing numerous contortions, in which there is no evidence of the granite having been forcibly injected so as to produce shifting. Mr Macgillivray exhibited a specimen of the but- cher bird (Lanius excubitor), shot at Whittinghame by Mr Archibald Hepburn. On 21st December 1839, a communication was read from Professor EKhrenberg on the calcareous and siliceous micro- scopic animals which form the chief component parts of chalk and its associated rocks. Dr Greville stated that Mr Shuttle- worth considered many of these organisms of Ehrenberg to be of vegetable origin. Mr Stevenson mentioned that, up to Ist December current, no snow lay upon the mountains of the outer Hebrides, which, in ordinary seasons, were clothed with snow in the end of October or beginning of November; but that wild swans were abundant in the lochs, indicating a severe winter in Iceland and Faroe. The Society would appear also to have extended its opera- tions beyond the ordinary limit of science; for I find in the minutes of 12th January 1840, “on the motion of Professor Jameson, it was unanimously agreed that the members of this Society will give all possible countenance and encourage- President's Address. 9 ment to a Society lately formed in Edinburgh for the preven- tion of cruelty to the inferior animals.” On 25th January 1840, Forbes read an account of the En- tozoa of the Cydippe pileus, showing that, besides a Filaria, there is a curious tongue-shaped parasitic animal, which was first detected by Major Playfair of St Andrews, and has been ealled by Forbes Tetrastoma Playfairit. On 22d February 1840, Lord Greenock’s discovery of Sul- phuret of Cadmium in rocks on the banks of the Clyde is no- ticed, and the mineral is called Greenockite by Professor Jameson. Mr Cunningham read a paper on the Geognosy of the Island of Arran. On 7th March 1840, Mr Bald read a notice regarding the extent and commercial value of the blackband ironstone in Scotland; and Mr James Wilson recorded the result of Mr Shaw’s observations on the fry of the salmon. : On 4th April 1840, Professor Jameson proposed that the Society strongly recommend the measuring of the heights of the coast lines of Fuci along the shores of Scotland, the Hebri- des, and the Orkney and Shetland Islands; and the Soeiety accordingly remitted the subject particularly to Dr Greville, Mr Robert Stevenson, and Mr Edward Forbes; and further directed the Secretary to intimate the recommendation to the Rey. Charles Clouston of Sandwick, Dr George Johnston of Berwick, and Dr Edmonston of Unst. Professor Jameson showed specimens of compact felspar of great hardness, from a bed which has occurred in the deep cutting for the Edin- burgh and Glasgow Railway, very near Winchburgh, and has greatly impeded the operations. On 18th April 1840, Edward Forbes made observations on certain rare British zoophytes, illustrated by drawings. On 14th November 1840, Mr John Goodsir is recommended as a member by Professor Jameson and Dr Neill; and he was elected on 29th November. At that meeting, Forbes read a communication on the classification of Mollusca. On 12th December 1840, Dr Richardson sent a communi- cation on the frozen soil of North America. Mr Goodsir read an account of certain peculiarities in the structure of the short sun-fish (Orthagoriscus mola), as observed in a large VOL, Il. B 10 Proceedings of the Royal Physical Society. specimen lately captured in the Firth of Forth, near Alloa; and on 9th January 1841, he gave an account of the ana- tomical structure of Ascidiw, showing that even the rough covering of these animals is highly vascular; and at the same meeting, Mr Jameson Torrie noticed traces of former glaciers in the south of Scotland, and mentioned the occurrence of fossil trees near Galashiels. On 23d January 1841, Edward Forbes made a communica- tion on the Natural History of Echiurus and Thalassema, two genera of Echinodermata; and Mr John Goodsir explained the structure of these animals. Forbes also noticed a new genus of British Helianthoid Zoophyte, called by him Capnea. On 6th March 1841, Dr Fleming gave an account of a new British species of Raia. On 17th April 1841, Mr Goodsir read a communication from his brother, Mr Henry Goodsir, containing an account of a new genus, with description of new species, of Pycno- gonide ; also, an account of Pelonaia, a new genus of tuni- cated mollusca. On Lith December 1841, an account of St Kilda and its Natural History was read, as transmitted by Mr John Macgil- livray. On 28th April 1842, Professor Jameson exhibited the follow- ing fishes which had been taken in the Firth of Forth, chiefly in Aberlady Bay:—1. Tunny, 8 feet long, and 5 feet 6 inches in circumference where thickest. 2. Portbeagle Shark, 7 feet 3 inches long, and 4 feet in circumference. 3. Great Sun-fish, 5 feet 2 inches long, and 2 feet 8 inches deep. 4. Conger Hel, 6 feet 6 inches long, and 4 feet 10 inches in circumfe- — rence. He also exhibited a beautifully spotted Seal, 5 feet 6 inches long, by 4 feet 3 inches in circumference, accidentally entangled in a herring net at Inch Garvey, near Queensferry. On 26th November 1842, Forbes was elected Vice-President. On 10th December 1842, Mr Torrie read a paper by Mr Henry Goodsir, on two new genera of crustacea, to be called Bodotria and Alauna, found by him in the Firth of Forth. Dr Traill gave an account of Hlaps Jamesoni, a new serpent from Demerara. On 25th February 1843, Mr John Goodsir read a notice President’s Address. LL from his brother, Henry Goodsir, of the Maidre,—a vast ac- cumulation of minute marine animals, which precede the ap- pearance of a herring shoal off the Isle of May. He described also a new species of Cetochilus. Mr Goodsir continued for many seasons to give interesting anatomical communications from himself and his brother. In February 1845, Dr Traill read a paper on the arrange- ment and character of serpents, while John Goodsir gave a description of Neuronoia Monroii, a species of Entozoon, in- festing the nervous system of the Gadide. On 7th March 1846, Mr Goodsir communicated original observations on the organs of circulation of the Echinodermata. _ 28th March 1846, Dr Fleming read a paper on raised beds of shells occurring on the coasts of Scotland; and Mr John Goodsir read a paper on the anatomical structure of the Hy- peroodon Dalei, taken from a specimen stranded near Alloa. And on 19th December 1846, Professor Goodsir exhibited the living larva of Medusa aurita. On 20th February 1847, Professor Goodsir read a paper on the morphological constitution of the skeleton of sponges. od April 1847, Dr Martin Barry read a paper on the nu- cleus of the animal and vegetable cell. On 27th November 1847, the completion of the bust of Professor Jameson is re- corded, and a statement is made as to its being placed in the Museum. There was no meeting from 27th November 1847 till 22d April 1849, owing to Professor Jameson’s illness. Meetings became very irregular. In 1849, the forty-third session commenced on 24th November, and that was the only meeting for the session. The forty-fourth session commenced on 23d November 1850, Professor Jameson in the chair. The president stated on the occasion that Dr Neill, the secretary, was prevented from attending by illness, a circumstance which he believed had not occurred previously in the history of the Society since its foundation in 1808. At this meeting Messrs Torrie, Gre- ville, and Hamilton, were requested to act pro tempore as secretaries. The Society then adjourned, and did not again meet for business. 12 Proceedings of the Royal Physical Society. The minute is signed by Robert Jameson, President. In March 1856, a meeting of the members of the Society was summoned to consider its state and prospects. The circular calling the meeting was subscribed by Messrs Adie, Fleming, Traill, Jardine, and Balfour, V.P.; Greville, Trevelyan, Goodsir, Deuchar, Councillors; Ellis, Treasurer ; Torrie, Secretary ; Wilson and Hamilton, Librarians. Various meetings took place on the subject. Proposals were made to revive the Society, and many members pro- mised active support. But after full consideration it was finally resolved, in November 1857, to wind up the Society’s affairs, and transfer the funds and property in certain pro- portions to the Royal Physical and the Botanical Societies. Here, then, we have another instance of the failure of a So- ciety which had during a long period a career of no small celebrity and usefulness. ‘To what are we to attribute this ? Chiefly, I think, to the fact of its absolute dependence on one man, Professor Jameson. Nothing was done without his sanction. He was perpetual president, and no meetings were called except by him. Along with the worthy secretary, Dr Neill, he managed all the business ; and when, during the lat- ter years of life, the Professor was incapacitated from taking an active part in the proceedings, no meetings took place, and the Society languished; and on his death all attempts to re- suscitate it were found to be hopeless. - The connection of the Society with the Museum led, in a certain degree, to its dependence on the Professor of Natural History. Its dissolution is traced, then, to the want of an in- dependent council, who could manage its affairs and keep up its membership. It possessed ample funds, a good museum, many books, as well as other property ; but it wanted zealous and active members to carry it on, and its exertions were crip- pled by the ill health of its president, who was allowed to be the sole motive power. _ We have thus seen a student-society (Plinian) failing from want of successors to keep up the business with spirit, from depending on the fluctuation of natural-history zeal among students, and from the absence of senior men to co-operate with them and carry on the work; and we have seen another President's Address. 13°. society (Wernerian) fail from decline of activity among senior naturalists, and the want of the infusion of young blood to carry on the scientific circulation. Our own Society, the Physical, has had its times of pros- perity and adversity, but it has survived all shocks, and its success seems to be owing, in a great measure, to the well-as- sorted co-operation of senior and junior members. The zeal and enthusiasm of the young naturalist has imparted anima- tion to all; while rash theorising or hasty generalizations have been curbed by the prudent councils of such veterans as Flem- ing. There is a wholesome balance, which enables the Society to exhibit its vitality in well directed efforts for the advance- ment of true science. The Society does not confine itself to the mere reading of papers and communications, but encourages active practical operations among its members. Its Committees for dredging, and for the prosecution of geology and of entomology, are well- fitted to bring out the zeal of its Fellows, and to initiate the junior votaries of science in the details of field work. Such a system is calculated to secure the permanence of the Society, and to produce valuable results. Mere reading will never make a man a naturalist. He must touch and handle the ipsissima corpora, and must observe the phenomena as pre- sented to his senses by nature itself. Researches conducted under the auspices of those who have already in some mea- sure mastered a science are of the highest value to the tyro. If we wish the Society to go on prosperously, we should encourage young men to enter while they are studying here. We may thus hope to raise up naturalists who will do good service in after life, and who, when they visit different quarters of the globe in future years, may be expected to contribute papers to the Society, which may be published in our Pro- ceedings. On looking over the Records of the Society’s Proceedings for last session, I find that Zoology has occupied the most pro- minent place. We have had a series of most valuable ori- ginal papers on British Zoophytes, by Dr T. Strethill Wright, one of the best observers of the present day. We have also enlisted in our service one who devotes himself now entirely 14 Proceedings of the Royal Physical Society. to natural history, Mr Andrew Murray, who has enriched our Proceedings by his Zoological papers, and particularly his contributions on the Coleoptera of Calabar, and the Ma- lapterurus beninensis. To Dr Cleland we owe some valuable anatomical papers, especially on the structure of Malapterurus ; and we also owe our thanks to Dr M‘Bain, and Mr Peach, and to Dr John Alex. Smith, our indefatigable Secretary, for their excellent papers. We have to lament the want of the contributions to Geo- logy which used to come to us from the pens of Fleming and Miller, and we have not been able during last session to in- duce other geologists, such as Mr Chambers, to favour us with papers. We may hope that this session will be characterized by greater vigour in all departments. For myself I must plead guilty to having done little for the Society, chiefly because my botanical efforts are made in con- nection with the kindred Botanical Society. I would desire to urge upon all the members the importance of bringing before the Society communications, however short, on the departments of Natural and Physical Science to which they are attached. There are few indeed who cannot contri- bute something. It is impossible for a careful observer, when he examines natural phenomena, not to detect some point of interest which has been overlooked. Brief notices are always useful, and no one should be deterred from coming forward by an idea that what he has to state is not of much importance. Let the young naturalist begin at once to record his observa- tions,—-let him get into the habit of noting facts as they occur,—and he will find the benefit of this mode of procedure in his after career. We have before us a noble and inexhaustible subject of study. None is better fitted for mental training, and none exercises a more beneficial effect on the observing powers. At the present day natural history is assuming a higher position in our courses of study, and as a Society we are called upon to aid in promoting such a system of education as shall render our Edinburgh school famous in the annals of science. The phenomena presented by the material world around us 4 President’s Address. 15 are well worthy of our earnest study, whether we regard them as means of exercising our mental powers, or as leading us to higher views of Him who has created all things, and for whose pleasure they are and were created. The followers of science have sometimes been blamed for attempting to subvert religion by their speculations. There can be no doubt that in former times, and even at the present day, some have started theories which have a tendency to shake the faith of weak naturalists. But these are opposi- tions of science falsely so called,—vague theories not founded on facts. There is no fear of true science in its bearings on religion. It is only want of science which produces any jarrings. The more we investigate the wonders of creation, the more we shall see the harmony which subsists between the Word and the works of God. I, Contributions to the Natural History of the Hudson’s Bay Company’s Territories. Part I1—Mammala (continued.) By Anprew Mur- RAY, F.R.S.E., President of the Botanical Society of Edinburgh. ReEIn-DEER (Rangifer Caribou).—In my last communica- tion on this subject, I drew attention to the antlers of the American rein-deer,—their peculiar form, their mode of growth, and the habits of the animal,—as bearing on the question of its identity with the Lapland rein-deer, and made some suggestions and speculations, with the hope that they might lead some of my correspondents to inquire more par- ticularly into these points, and give us reliable information upon them, which might enable us to come to a correct con- clusion on the subject. I am happy to say, that these ob- servations have had the desired effect, and that, with an additional supply of horns and heads, I have this year re- ceived divers remarks on the points I indicated for inquiry. One intelligent correspondent, Mr J. Mackenzie of Moose Factory (from whose communications I have received much satisfaction), goes at some length into the subject, and his information, as to the time of the year when the horns are cast at the different periods of the animal’s life, clears up the discrepancies which have been noticed in the statements of dif- ferent authors on this subject. It will be seen that the casting 16 Proceedings of the Royal Physical Society. takes place at different times in the young and older animals. I cannot do better than bring his views before the reader in his own words, particularly as he comes to a different opinion from that which I felt disposed to adopt on one or two of the points which I speculated upon. Mr Mackenzie says—‘ I have consulted one of our most intelligent natives, a man of about sixty years of age, who has been a deer hunter from his youth, and the result of our “ conference” I will presently give you. I send by the shipa deer’s head and antlers, which were received about last Christmas, and said to have been killed early in December; it bears some resemblance to the North American species, a representation of which is given in your pamphlet, although the brow antler, however, forms a small angle with the head, and does not come down parallel with it, as in the heads sent you by Mr Hargrave; it has also a second projecting prong, bent near the head, without any terminal points or fingers, but these it would have had, had the animal lived a year or two more; indeed the horns do not cease growing till the seventh year. I do not believe that the brow antler 1s intended for the purpose of clearing away the snow, but is intended rather as a means of defence against the animal’s numerous enemies. The wolf, wolverine, and lynx, destroy them, I am informed, in great numbers; but the ani- mal, on its guard, appears to me to have a good means of defence in his browantler. Generally, however, he is taken at a disadvantage ; when lying down, and off his guard, the lynx (of the cat tribe) moves stealthily along, and with a bound springs upon his back, and fastening his claws in his neck and throat, worries him to death. The wolf and wolverine are not numerous (the latter, indeed, is rarely found) in this part of the country, but of the three the latter is the most savage, and with: him the deer has little chance of escape when attacked. Indian opinion here is, that for clearing away — the snow, the animal uses his fore-legs alone ; and whether it is hard or soft, they are well adapted for the purpose. My own opinion is, that our rein-deer is the same as the Lapland rein-deer. The following information, collected as I have al- ready mentioned, may tend to throw some light on the subject. The rutting season is in September; the females carry Natural History of the Hudson’s Bay Territories. 17 their young till the latter end of May or beginning of June, or till the d/ast snow is disappearing. The horns begin to grow in about a month; at the end of the year they fall off, being about 8 inches long, and not branched; at the end of the second year they are about 13 feet long, curved, and with terminal points, and are cast off in spring; the third year the front and brow antlers commence to grow, but are not large at the end of the year, and are cast off again in spring; the fourth year they are larger, but not full-grown, and are cast off in spring; the fifth year they are still growing, and are cast off in March ; after the fifth year they are cast off in November. ‘The Indian also states, that the antlers have a variety of shapes, and that it is rare to find two exactly alike. With regard to the training or domestication of the rein-deer I can say nothing from my own experience, nor from that of any Indian at this place; but I may mention, that I have recently seen a gentleman who passed many years near the head waters of the River Synauria (a river which falls into the St Lawrence, near the Town of Three Rivers, in Lower Canada), and that he had seen a young rein-deer among the Indians as tame as a lamb; it entered the lodge, and fol- lowed its master like a dog; but it was at last killed by the dogs.” Mr Mackenzie’s observations will be of use in correcting misconceptions on one or two of the points alluded to by me. It would appear that the American species uses its feet in clearing away the snow from its food, as much as the Lap- land species does; and the cup-shaped structure of its feet, as shown in the specimens now sent home, is admirably adapted for this. That it does not use the projecting shovel- like brow antlers for the same purpose I am less willing to admit; the apparent adaptation of their form to this pur- pose induces me to defer forming a definite opinion upon it until further information be obtained; the rather that, how- ever intelligent and truthful the Indian referred to by Mr Mackenzie may be, his statement is merely negative, and is inconsistent with the observations of such authors (few in number though they be) as notice the point. As to the identity of the Lapland species with the North VOL, II. c 18 Proceedings of the Royal Physical Society. American, we cannot expect to arrive at any correct result, until we have the means of making a more complete compara- tive examination than has yet been done of the two species alongside of each other. Notwithstanding the greater dis- tance of its locality, we possess both better materials and more accurate information on scientific points regarding the species from North America than that from Lapland. It is to the latter that our inquiries should now be directed, and more accurate information sought for on such points as the periods of growth and shedding of the horns, referred to in my previous communication, and in Mr Mackenzie's letter. His statements on this point have been confirmed to me by Mr Hargrave, who also informs me, that the head with distorted horns, sent last year, which was figured in the first part of this paper, was that of a young animal, not more than two years old. He mentions, that a slight bend is common in the first year ; that this becomes of the distorted form above referred to in the second year, but afterwards disappears. I was misled, by the teeth being much worn, into the supposition that it was an old animal. These worn teeth must be the milk teeth; and we thus have incidental information as to the period the animal | carries them. Information on such points becomes of importance, because the North American and Lapland species are so closely allied to each other, that we cannot expect to find distinctions of a prominent nature, and must be content with the accumulation of those of a more subordinate character. I may notice, that I find the view which I adopted—viz., that the species are dis- tinct—has also been entertained by Professor Spencer Baird of America, who, in his recent « General Report upon the Zoology of the several Pacific Railroad Routes, Part [— Mammal,” includes two species of rein-deer as inhabiting the northern shores of North America (the Rangifer caribou and Rh. Gronlandicus), and both distinct from the Lapland deer; at the same time admitting that their distinctness is questionable. MooseE DrsEr (Cervus Alces, Lin.).—Mr Hargrave has had the kindness to send me a magnificent head and horns of this fine elk, which is another animal as to whose identity with its Natural History of the Hudson’s Bay Territories. 19 European representative we are still in doubt. The Scan- dinavian elk is undoubtedly very near it, if not the same. The enormous palmation and weight of the horns in this species is very striking. Colonel Smith says that the horns sometimes weigh fifty pounds. The present specimen weighs 32 1b., but that is inclusive of the head. Sir John Richardson, in his account of the animal, records a statement relating to the horns of deer which I think must have originated in some curious mistake. Speaking of the moose deer, he says,—‘“ It is probable, however, that La Hontan in this passage con- founds the Canada stag and moose deer together. He men- tions the animal being able to run in the summer season for three days and nights in succession, and the excellent flavour of its flesh—facts which apply to the moose deer, but not to the Canada stag; on the other hand, the weight of the horns, which he says sometimes amounts to four hundred weight, is true only of the stag.” Now, the Canada stag, or wapiti, is the representative of the red deer in America, and was in- deed long thought to be identical: it is a larger animal than our stag, but smaller than the moose, which is as high as a horse. Large specimens of the male moose are mentioned, which have attained a weight of eleven or twelve hundred pounds ; and is it possible that a smaller animal should have horns weighing four hundred weight? I suspect a cypher has been added, and that we should read 40 lb. instead of 400, which would then make it clear that the animal referred to by La Hontan was the moose. With regard to the moose being able to run for three days and nights in succession, an instance of its doing so is recorded in the narrative of Captain Franklin’s second journey, where three hunters pursued a moose deer for four successive days, until the footsteps of the deer were marked with blood, although they had not yet got a view of it. At this period of the pursuit, the principal hunter had the misfortune to sprain his ankle, and the two others were tired out; but one of them having rested for twelve hours, set out again, and succeeded in killing the animal, after a further pursuit of two .days’ continuance. The cause of the footsteps being marked with blood might be from the phalanges of the hoof splitting, or possibly from the 20 Proceedings of the Royal Physical Society. hoof becoming worn down by incessant and long-continued action on the icy crust of the snow. We are accustomed to hear of the cattle in long journeys in the Cape of Good Hope and Australia becoming knocked up, and the traveller being arrested in his journey by the failure of his beasts of burden. I daresay many people entertain the idea (as I did myself) that this knocking up was the consequence of physical exhaus- tion on the part of the cattle. Mr Ford, one of the best zoolo- gical draftsmen in Britain, first enlightened me on this point. He had accompanied Dr, now, deservedly, Sir Andrew Smith in one or more of his exploratory expeditions to the interior of the Cape; and he told me that this failure of the cattle was oc- casioned, not by exhaustion, but by the actual wearing away of the hoof, till blood oozed from it at every pore. The Cala- hari desert was particularly obnoxious, as it is composed of a slaty formation, highly inclined, which shivered easily off into sharp fragments. It was like walking on bundles of pen- knives, with their edges placed upwards. The cattle gave in sooner in this desert than in any other district, in consequence of the greater abrasion of the hoofs upon this slaty formation; and, till they grew again, the animal was useless, and scarcely. even to crop its food, would it stir from the spot where it was unyoked. I do not know what length of time would be necessary to incapacitate an ox,—of course, it must be vari- ous, according to the extent and nature of the ground tra- velled over; but although soft snow might protect it longest, T imagine the brittle fragments of a hard frozen crust of snow might be not much less destructive than the slaty splinters of Calahari. I have examined the hair of the moose deer, and find that its structure is the same as that of the rein-deer, which I have already described in my paper last year. ALPINE Hare (Lepus glacialis, Leach).—This beautiful hare furnishes an admirable example of the adaptation of struc- ture to habit. For heat and comfort nothing can surpass its thick, delicate, white fur, which, on the under side of the paws, assumes such a compact, double-plied, felt-like cha- racter, that one would think no degree of cold could penetrate Natural History of the Hudson’s Bay Territories. 21 it. The whiteness of its colour also is so pure that it is most difficult to discernit on the snow. Sir John Richardson notices that in one of the boat voyages in which he took part along with Franklin, they landed on a rocky islet off Cape Parry, which, although not above 300 yards in diameter, was ten- anted by a solitary Alpine hare. The whole party went in pursuit of this poor animal; but it availed itself so skilfully of the shelter of the rocks, and retreated with so much cun- ning and activity from stone to stone, that none of them could obtain a shot at it, although it never was able to conceal itself from their search for more than a minute or two at a time. ‘Its flesh is said to be better eating than either the Ameri- can or Huropean hare. QueBEC Marmot (Arctomys empetra, Schreb.)—This ani- mal, although recorded as being found in the Hudson Bay Companys territories, would appear to be confined to their southern parts. Ihave received none from my northern cor- respondents, but only from Canada, where it would appear not to be rare. Musk Rat (Fiber zibethicus, Cuv.)—This is a very com-. mon species in the Hudson Bay Company’s territories, and supplies a large portion of the furs sent to this country. Its skin is used as medicine or medicine-bags by the natives, in which state the specimens sent to me have arrived. BEAVER (Castor Americanus, Brandt).—Considering the immense number of animals both of this, and more especially of the preceding species, which have for a long series of years been taken for the purpose of supplying the wants of civi- lized Europe, we might have expected that specimens would be by no means rare in our museums. The contrary is the case, however, so much so that when my friend Dr J. A. Smith a year or two ago wished to compare the semi-fossil bones of a beaver found in a superficial deposit in Scotland with the recent skeleton of a beaver, the comparison could not be made in Scotland from want of a specimen of the re- cent animal in any of the museums in that country. I 22 Proceedings of the Royal Physical Society. applied to Mr Mackenzie to assist us in remedying this deficiency, and he has very kindly done so by sending both a full-grown living beaver, and a foetus taken from the mother before birth. In sending a living specimen, Mr Mac- kenzie remarked that it would probably ultimately answer the purpose of a skeleton, should the climate of Edinburgh not agree with the animal’s constitution. I had destined it for the pond in the Edinburgh Royal Botanic Gardens, where Professor Balfour could have given those interested in natural history an opportunity of studying its habits at their leisure. It might easily have been kept alive if it once had reached the gardens. There would have been no difficulty in supplying it with birch twigs and branches, its native and proper food; and Mr Mackenzie informs me that it is by no means par- ticular in its food, and that if it had the run of the kitchen (that is, I presume, the opportunity of selecting what it chose from the debris of an ordinary family’s table) it would do very well. Unfortunately, it never got the chance of trying the climate of Edinburgh, nor we the chance of trying experi- ments upon it or its food. Itreached London alive, but that wasall. It died next morning. It was, however, carefully transmitted to me, and along with the foetus received last year was presented by me to Professor Goodsir, who has under- taken to make a careful dissection of it, and to communicate anything he might think of interest. There are a number of points in the internal anatomy on which information is wanted, such as the castor, and the glands which produce it, and others which might throw light on some disputed (I cannot call them doubtful) points in its economy and habits. For instance, we know from Hearne, that the usually received notion that the animal uses its tail as a trowel to plaster its work, is merely a vulgar prejudice, arising from its flapping it on the ground occasionally, and more particularly when about to plunge into the water. Now an examination of the muscles of the tail might, were it necessary, throw light upon this point. But I imagine that the whole structure and habits of the ani- mal explain the use of the tail sufficiently even without ana- tomical assistance. On examining its external peculiarities we find that its fore paws and feet are short and comparatively Natural History of the Hudson’s Bay Territories. 23 small and weak, and not provided with a web; the claws are strong, and well adapted for digging, but not equal to those of the hind feet. The hind feet and legs are enormously strong, the fingers united by a strong broad web, the claws excessively developed, and each in the form of a strong gouge. The combination of machinery in the fore and hind legs and feet thus corresponds with what we know of the habits of the animal so far as that can be observed; and the structure of that portion whose working is difficult to be observed in action, or has not been noticed sufficiently, shows what its real work- ing is. ‘Those who have observed the animal in its native haunts, tell us that it uses the fore paws for carrying the mud and stones used in its constructions, and that it carries this stuff between them and its breast, which quite corresponds with their attitude in my dead specimen. It no doubt uses the fore paws for other purposes, as digging, swimming, and walking (for nature seldom or never creates an organ merely to fulfil one purpose). As clearly, the hind paws are much used in digging, but most in swimming ;—the powerful hind leg, enor- mous web foot, and strong claws, would prove this although no one had ever seen the animal using them. Combine these different actions of the fore and hind feet together and see what would be the result. Suppose the animal swimming across its pond or river with a burden of heavy materials clasped to its breast by its fore paws, and powerfully propelled by its hind legs, and that it had no tail or only a common tail—what must inevi- tably be the consequence? The hind feet would propel the animal rapidly enough—no doubt about that—but where to !—why, to the bottom, for, being overloaded in front, it would be top heavy, and its head becoming directed obliquely downwards the more violent the exertions of the hind feet, the sooner it would reach the bottom, and the deeper its head would be buried in the mud. That this is the necessary and inevitable consequence of the want of the action of the fore paws, will be evident to every one if they will merely fancy what would be the result of their try- ing to swim with their arms folded; of course, if there is not only the inaction or abeyance of the fore arms to be conquered, but also the weight of a load of mud or stones to be counteracted, a counterpoising lever of more than ordinary power will be ne- 24 Proceedings of the Royal Physical Society. cessary, and this is supplied by the broad flat horizontal tail, which is constructed on the best principles for attaining such an object. Were it different or differently placed, the end would not be answered; suppose it vertical like a fish’s tail, it would answer equally well as a swimming organ, but not as a counterpoise. It must be powerful, and it must be hori- zontal, so as to press broadly downwards, and as the pur- pose here is to increase resistance and friction, and not to di- minish it, it is denuded of hair, or nearly so, and covered with polygonal scales. A few scattered hairs occur, inter- spersed between them, but these are not abraded as they would have been had the tail been used as a trowel. That this is the interpretation of the structure and purpose of the tail igs I think self-evident from its fitness. The habit of flapping the tail on the ground before plunging into the water is probably only the mechanical repetition of the action with which it habitually starts into motion, and which in the water is essential to its progress. The teeth of the beaver are often quoted as good examples of the mode in which rodent teeth grow from the pulp at their base, with a hard enamel-like steel on the outer edge, and softer material on the inner side, and thus have their sharp- ness and chisel-like form always kept up by the very thing which at first sight would seem to be likely to make them blunt—viz., their constant use. The incisor teeth in the foetus are conical, thus showing that the chisel form in the adult is the result of abrasion. The specimens sent me are from the neighbourhood of Moose Factory. I have adopted the specific name Americanus given to this species by the Russian naturalist Brandt, who has separated the American animal from the European and Asiatic (the true Castor fiber) on osteological grounds, chiefly drawn from the skull. For the reason alluded to above (want of specimens for comparison), I can give no opinion as to the propriety of this separation. Mus leucopus, Rafin.—In his description of this species, Sir John Richardson says,—‘ The tail is thickly clothed with short hairs, lying pretty smoothly, no scales whatever being Natural History of the Hudson’s Bay Territories. 25 visible.” In my specimen it is not thickly clothed with hairs ; it is rather sparingly clothed with hairs, and the scales are very apparent under them. He also says that “its” (the tail’s) “upper surface is of a hair-brown colour, considerably darker than any other part of the animal, and contrasts strongly with the inferior surface, which is white.” The upper surface of the tail in my individual is not nearly so dark as the back of the body; still, however, as it agrees in all other respects with Mus leucopus, I have no doubt that it is that species, and that these differences are only accidental variations in my specimen. SHREW-MOLE ? (Scalops Canadensis, Cuv.)—I have had no opportunity of comparing this animal with any named speci- mens, and my determination is made entirely from the descrip- tion in Sir J. Richardson’s ‘“‘ Fauna Bor. Amer.” My specimen agrees, for the most part, with the description in that work ; but there are one or two points on which I am not quite satisfied. In particular, the whole of the fore foot is said to have a close resemblance to that of the common mole. Now, although this has a general resemblance, it cannot be said to bear a close resemblance. It wants the sabre-shaped bone of the mole, and the nails are greatly smaller. The description of the nails of the shrew-mole is, that they are large, white, and have a semi-lanceolate form, with narrow, but rather ob- tuse points. ‘These in my specimen can scarcely (according to my ideas) be said to be large; but large is a word of very doubtful interpretation ; what is large to one person may be very small to another; so that, on this item, I must mark my species with a query. There is one point in the history of the shrew-mole which I should like to see either confirmed or expunged from our books—viz., that although a burrowing animal, it has the sin- gular habit of coming daily to the surface exactly at noon. Sorex parvus, Say.—This shrew may be readily distin- guished from other American shrews by its tail being rounded instead of being more or less angular. One might be disposed to think that this is a character of little value, depending merely on the greater or less plumpness of the individual; but VOL. 11. D 26 Proceedings of the Royal Physical Society. it does not appear to be so, and other characters concur with this to establish the species. This one is certainly not well named; as, though un- doubtedly a small animal, it is the largest of the North Ame- rican species. Sorex Forsteri, Rich.—The tail in this species is quad- rangular. Itis the smallest quadruped known to the Indians ; and I cannot call to mind any quadruped with which I am acquainted, from any quarter of the world, which is smaller. Among the specimens which have been sent me is one which differs slightly from the description of S. Forsteri. Its colour is wholly mouse-dun, whereas that of Forsteri is wholly clove-brown on the back. The specimen is in spirits, however ; and the clove-brown being, from what we see in other specimens, a tinge of that colour in certain lights, it is probable that the darker colour is merely owing to the medium in which it has been sent; at all events, that the specimen is at most only a variety. AMERICAN OTTER (Lutra Canadensis).—I have received a specimen from the York Factory district, in the shape of a medicine-bag, which is a favourite use of it with the na- tives. II. On New Protozoa.—(1.) Lagotia producta. (2.) Zooteire areligata. (3.) Corethria Sertularie. (4.) On Stentor Mulleri and Stentor: castaneus. By T. Srretaizt Wricut, M.D. Description of Plate ITI. Fig. 1. Lagotia producta, group enlarged. . Single specimen of do. 3. Diagram showing section of tube—a, chitinous ribbon—b and ¢, in- ternal and external fleshy coats. i 4, 5, 6. Young of L. producta in various stages. 7. Zooteirea religata—a, extended—b, contracted. 8. Corethria Sertularie—a, ‘‘ cushion ”—b, “‘mop”—c, Gregarina-like ap- pendage. 9. Summit of ‘‘mop ”—a, external, and 6, internal coat. 10. Summit of Gregarina-like appendage. ll. Salpistes Mulleri, —a, gelatinous lorica. 1. Lagotia producta. (Figs. 1-6.) At our meeting of the 22d April 1857, I described Lagotia WH MFarlane, Lit Edin. Royal Physica Society Edinburg) PLATE IL. New Protozoa. . — See = i IP Strethity Wright etched ow stone/ , | Description of New Prolozoa. 27 viridis, which I had discovered some time before, together with two other species, Lagotia hyalina and atro-purpurea: The present species, Lagotia producta, was found in great profusion in the tanks of Miss Gloag of Queensferry, in August last, and resembles Lagotia viridis in its general characters. It has the same long green body, surmounted by a horse-shoe- shaped or two-pronged rotatory organ, each prong formed of a membrane folded together, like the ear of a hare, and edged by a muscular band fringed with vibratile cilia. It inhabits also a similar flask-shaped cell, with bent neck and trumpet- shaped mouth. But the body of Lagotia producta is greatly prolonged in comparison with that of Lagotia viridis; the colour nearly black, and the gullet a wide sac, and not a spiral canal. In the present species, the neck of the cell has become a long wide tube, greatly disproportionate to the flask- shaped part from which it projects; the whole bearing some resemblance to a long jack-boot. salon », cheuchris » tinnunculus » rufipes » palumbarius sy oy) muisuis », rufus 5 cyaneus 5» cineracius » milvus i ater » buteo », lagopus 5» apivorus » nevius » albicilla », haliaetos brachydactyla Strix otus », brachyotus », tengmalmi 55 hoctua », fammea Strix nyctea » hisoria Corvus corax »» f cornix », | corone \ » frugilegus », Mmonedula y apica »» glandarius », Infaustus caryocatactes Lanins excubitor », mimor », collurio »» pheenicurus Lanins rufus Muscicapa grisola As luctuosa parva Bombycilla garrula Sturnus vulgaris » roseus Turdus viscivorus », musicus », solitarius >> lliacus » pilaris » ruficollis » torquatus » merula varius Ae Saxatilis ee BUS lividus Sylvia philomela ;» Lucinia »» (cyanecula . {leueveyanc », \ruficyanea » Tubecula fo ELS »» pheenicurus », erythrogastra (?) » hortensis », atricapilla »» orphea »» nisoria 5, cinerea » provincialis ,, turdoides », arundinacea », palustris », locustella », certhiola » aquatica 5, Phragmitis ,, caligata 5, familiaris Sylvia hypolais ,, sibilatrix », icterina (?) » trochilus , rufa », bonelli », jJavonica ,, bifasciata (mihi Regulus modes- tus (This bird I have obtained ezght times in this island; four specimens being still in my possession.) Sylvia virens (Wilson) (Oct. 19, 1858) Regulus pyrocephalus », Havicapillus Troglodytes parvulus Cinclus aquaticus » pallasi Accentor alpinus A modularis Saxicola cenanthe a aurita » stapazina a leucura 5s rubicola rubetra Anthus Richardi 5, campestris 5, arboreus » cervinus », pratensis ,, ludovicianus », littoralis aquaticus Motacilla alba ;, . lugubris 5 sulphurea » eitreola 9 flava 84 Motacilla citrinella 3 melanocephala Alauda arvensis alpestris arboreus cristatus brachydactylus ‘. .ealanara Emberiza miliaria citrinella cirlus aureola hortensis czesia melanocephala schoeniclus pusilla (above 15 times) rustica (twice) lapponica nivalis Frin gilla ceelebs montifringilla nivalis carduclis citrinella chloris canabina montium linarea spinus coccotraustes domestica montana Pyrrhula vulgaris rosea erithrina » enucleator Loxia ecurvirostra », leucoptera Parus major ater coeruleus palustris biarmicus caudatus Picus major Certhia familiaris Cuculus canorus Yunx torquilla Alcedo ispida Merops apiaster Coracias garrula Oriolus galbula Upupa epops Caprimulgus europzeus Hirundo rustica ”) 29 9? 99 Hirundo rufula urbica riparia melba apus Charadrius auratus virginicus longipes squatarola vanellus cedicnemnus morinellus asiaticus (Pall.) hiaticula, cantianus es minor Tetrao cothurnix Columba palumbis cenas livia 55. BELT EME Rallus aquaticus Crex pratensis porzana pusilla Do eet! Fulica atra » chloropus Grus virgo (once) Ardea cinerea purpurea stellaris minuta ciconia » nigra This falcinellus Numenius arquatus > pheeopus e tenuirostris Limosa melanura o wula, Scolopax rustica major gallinago » gallinula Totanus fuscus calidris glottis glareola ochropus hypoleucos (Tringa) rufes- cens Phalaropus rufus fe cinereus Tringa alpina 17 ”? 99 29 99 99 09 99 99 7 29 7? 9) 99 Proceedings of the Royal Physical Society. Tringa minuta 3° 9 99 Temminckii subarquata islandica maritima calidris interpres platyrhincha pugnax Recurvirostra avosetta Heematopus ostralegus Cygnus musicus i] minor Anser cinereus segetum albifrons minutus hy perborea leucopsis torquatus boschas strepera penelope acuta querquedala crecca tadorna fusca nigra perspicilata marila fuligula ferina nyroca clangula glacialis stelleri molissima spectabilis Mergus merganser 99 39 serrator albellus Carbo cormoranus 99 graculus Sula alba Larus marinus 99 99 39 9) fuscus glaucus leucoptherus argentatus Larus canus 99 39 trydactylus eburneus ridibundus minor Sabinii Notice of Birds observed in the Island of Heligoland. 85 Larus Rossii Lestris parasitica Podiceps minor Sterna cantiaca » erepidata Colymbus glacialis », anglorum Procellaria glacialis », arcticus » caspia s Leachii » septentrionalis » Dougallii Ae pelagica Uria troile », hirundo 5 cinerea ,, tringria (?) >, macroura x anglorum 5) arra », leuceparia Podiceps cristatus » grylle >» nigra ruficollis Alea arctica », minuta 95 cornutus » torda Lestris cataractes Ms auritus » alle »» pomarina IV. On the Danger of Hasty Generalization in Geology. By Avexanper Bryson, Esq. After deducing examples of hasty generalization, and show- ing the frequency of erroneous conclusions drawn from scanty data, he gave the following example, of which he was him- self guilty :—“ In the summer of 1856, a few friends joined me in a yachting expedition, to geologise among the islands of the Firth. Among other islands we visited Inch Mickery, and spent some hours in examining its structure. On the southern summit of the rock, a quantity of lead was found, filling up many of the interstices of the trap, which had, be- sides, a very scorched appearance. This circumstance natu- rally excited our curiosity, and many theories were formed to unriddle the enigma, but in vain. We carefully examined the island, but could not find a trace of a fire by which the lead could have been melted, except at such a distance from the rock as to render the idea of lead being carried so far without cooling inadmissible. Then the lead had run into the crevices of the rock, showing that it must have been very fluid when it fell. The absence of every trace of carbon around the lead, or at all near the rock itself, was very puz- zling. About this time our talented member, Dr Heddle, had announced the occurrence of native lead embedded in meteo- ric iron, and I at once held my Inch Mickery lead as truly meteoric in its origin. This idea was rendered the more probable, as Dr George Wilson, who kindly analysed it, failed to detect in it any trace of silver. Professor Fleming, al- though he scouted the notion of its meteoric origin, kindly accompanied us on a second visit to the island. After a per- sonal examination, he was unable to throw any light on the 86 Proceedings of the Royal Physical Society. subject, but advised us to wait patiently, and time might clear up the mystery. We would have rejoiced had he lived to learn the simple explanation only obtained a few months ago. The Board of Fisheries some years since took it into their heads that garvies were young herrings, and passed an act forbidding nets to be used the meshes of which were smaller than those employed in catching full-grown herrings. The officers of the Board happening to detect a boat using the illicit nets just off Inch Mickery, they, according to statute, took the offending nets to this rocky knoll and burned them. The leaden sinkers attached to the nets supplied my meteoric lead, and the twine yielded sufficient fuel to fuse it. V. Notes on some points in the Natural History of the West Coast of Ross-shire. By Joun AtEex. Stewart, Esq., Lochcarron. The first part of this paper was occupied with an inquiry into the food and some points of the natural history of the limpet. Besides the common species, Patella vulgata, Mr Stewart had detected the finer species, P. athletica (which had hitherto been chiefly found in the southern coasts of Britain), in great abundance upon the coasts of Ross-shire and Skye. He satisfactorily proved that the food of the common limpet was not confined to sea-weeds, as was generally supposed, but that it also fed upon Balani; and that the chief food of the P. athletica was the Corallina officinalis. Wher- ever that plant was in abundance, there A thletica was to be found; and it was not confined to the low-water zone, as it is said to be in the south of England. Mr Stewart described - the process of feeding on the Balani and Corallina, and ex- hibited specimens of the half-digested remains taken from their stomachs. Mr Stewart also exhibited and described a species of Comatula, which he considered different from the common C.rosacea. He had, however, been anticipated in this disco- very, Mr Barrett having published this species in the “ An- nals of Natural History,” in 1857, under the name of Com- matula Woodwardii. Mr Stewart farther exhibited a mag- nificent Ophiura, new to Britain, which he had discovered in. the same locality. It was 24 inches across, and differed mate- rially from any even of the genera of this family hitherto found Natural History of the West Coast of Ross-shire. 87 in our seas. It belonged to the genus Asteronyz, described by Muller and Troschell in their work on star-fishes. It seemed doubtful whether it was the same species which they had de- scribed under the name of A. Lovenii from Norway. In the main, it very closely corresponded with their description, but there were one or two discrepancies, which might either be specific, or variations dependent upon the age of the animal. Mr Stewart had only found one specimen; therefore, in the meantime, he was not in a condition to give an opinion upon this point. Mr Stewart, in conclusion, gave some interesting notices regarding the pulsation of the snail as compared with that of other animals; and also some notices of peculiar geological features which he had observed in Ross-shire. VI. A beautiful Sertes of Varieties (in plumage) of the common Phea- sant, were exhibited, the property of Walter May, Esq. By AnpREw Murray, Esq. Wednesday, March 23, 1859.— Wittram Ruinp, Esq., President, in the Chair. Joun 8, Livinesron, Esq., Leith, was elected a Member of the Society. The following Communications were read :-— I. Extract of Letter from the Rev. Hugh Goldie, Old Calabar, to Dr Greville, respecting some singular Silk “ Bags” formed by Insects in Africa. Communicated by W. H. Lows, M.D. The following extract of the letter was read by Dr Lowe, and specimens of the very curious ‘“ Bags” therein described were exhibited :— “Last year a brother of King Heyo undertook a trading expedition to Efeet. [This is a country lying on the side of the Camaroons Mountain, nearest the Old Calabar River.] In the smaller box you will find something which he brought to me as a curiosity, it being quite unknown in Calabar. The articles are small bags, woven by what would appear to be an insect of the same family as the silkworm. The insects are said to form these on trees, many working at one bag; and, having completed their task, each one rolls himself up in his 88 Proceedings of the Royal Physical Society. own shroud and dies. The people of Efeet sometimes take a number of insects and put them in one of their native pots, when they commence to work, and line the interior of the pot with their bag, by which means the people obtain large ones, which they use to put cloth in, or any light article, and which are said to be waterproof.” Dr Lowe regretted that, while the objects were of themselves of the highest interest, he was able to offer so little in the way of information respecting them. ‘There was no doubt, how- ever, that they were the production of lepidopterous insects, and this belief was confirmed by Mr Andrew Murray, who brought to the Society an excellent drawing of some bags ex- tremely analogous to those exhibited, and which are known to be the production of a gregarious butterfly in Mexico, a de- scription of which, together with an illustrative plate, will be found in the Transactions of the Entomological Society of London, vol. i. p. 38, published in 1836. As one of the bags from Africa was much. more dense in its texture than the others, Dr Lowe was led to think that two species of insect had been employed; but Mr Logan thought both might be produced by the same butterfly or moth. Mr J. T. Syme added some remarks ; and all the members joined in the hope that specimens of the insect, in any state of transformation, or however roughly preserved, might at a future time be pro- cured by the kind agency of Mr Goldie. II. A Series of recently-discovered Eyeless Beetles from the Caves of Car- niola and Hungary were exhibited—By AnprEw Murray, Esq. Mr Murray exhibited a fine series of eyeless beetles from the various caverns, &c. where these curious and rare animals have been found. There were twenty-six different species shown, of which there were a number which had been only discovered and described within the last two years, the pos- session of which he owed to his friend Herr Dohrn of Stettin. He pointed to the two new genera—Pholeuon and Drimeotus —as being of special interest, as filling up a blank between the genera of Leptoderus and Adelops, and proving that the former of these genera truly belonged to the family of the Cholevide, instead of being allied to the genus Mastigus, as Notice of the Tenacity of Life in Buccinum coronatum. 89 ‘was supposed by Lacordaire and other authors. Mr Murray mentioned a number of interesting facts relating to the eco- nomy and structure of these blind insects. III. Notice of the Tenacity of Life mm Buecinum coronatum. By AtexanpDER Bryson, Esq. On the 6th September 1857 we reached Marseilles on our way to Naples. Havinga full day to spend before the steamer sailed, we drove to the Prado la Mer to search for shells on the shores of the Mediterranean. On the sandy downs, close by the margin of the sea, we found many Helices which were new to us (Helix vermiculata, virgata), and others well known to the south of Europe. They seemed very gregari- ous, and we could collect them by handfulls. The shores of the Mediterranean do not afford a fertile field for the concho- logist, as the tides scarcely ever vary more than three feet. We picked up a few Vatice, and also a specimen of Buccinum coronatum, the tenacity of life in which is the object of this notice. We placed the Buccinum along with our Helices, and packed them all carefully in boxes, where they lay until May 1858. On opening up the packages we found the Bucci- num closely adherent to one of the Helices, but thought at the time that it was dead. We threw them all into a basin of tepid water, and found shortly that most of the Helices were alive, as wasalso the Buccinum coronatum. We lost no time in placing it in the marine aquarium of a friend, where he seemed quite at home and lively. Unfortunately, however, in a few days he came too near a hermit crab, who soon devoured the poor Buccinum. The Helices lived in the conservatory for some months, until the cold weather killed them. Ag this is the first instance of which I have heard of the tenacity of life ex- hibited by a marine molluse, I thought it should be recorded. While we were strolling along the shores we saw a novel method of fishing for sardines and anchovies. The fisherman wades into the water nearly to the middle, and is furnished with a large cireular net, round the periplery of which is attached a series of leaden bullets. A long rope is attached to the centre of the net, which he throws out in a very skilful manner to the full extent of his line. The resistance of the VOL. II. MM 90 Proceedings of the Royal Physical Society. air and the centrifugal force causes the net to expand like a flat old-fashioned umbrella, in which shape it reaches the surface of the water. The weight of the bullets causes the descent of the circumference, and the net assumes an oval form, and the tiny fish are caught by the meshes in their attempt to escape. Mr Bryson also took the opportunity of reading the following note he had received from his friend DrJames M‘Bain, R.N.:— “ As an additional instance of the tenacity of life in cer- tain species of the mollusca, I may mention that in the spring of 1857 a small Helix was picked out from amongst some dried raisins, and handed over to me by one of my fa- mily. As it had the thin, transparent, glistening film cover- ing the aperture, it occurred to me to repeat the experiment related by Dr Baird, in reference to the Egyptian desert snail in the British Museum, and included in the examples of tenacity of life in these animals given by Mr Woodward in his ‘Manual of the Mollusca.’ The following day our shy friend made his appearance in the glass vessel, and lived with us for five months. It was occasionally supplied with a little water, and portions of green vegetables, such as cabbage and lettuce, and seemed to give a preference to the latter. It was precisely identical with specimens of Helix virgata got at Shotover Hill, near Oxford, along with our friend Dr Mel- ville in 1847. This species is widely spread over the south of Europe, and, although having no objection to the interior, yet, like ourselves, has also a strong attachment for the neigh- bourhood of the sea. It is not surprising, therefore, to find it in company with Malaga raisins; but those singular excep- tions to the general laws, in the marked examples of torpidity in various animals, living for indefinite periods without food, and almost without air, are surprising.” Observations on British Zoophytes. ot IV. Observations on British Zoophytes. By T. Srreruitt Wrieurt, M.D. Kionistes retiformis (xiwv-lornus). Polypary retiform—alimentary polyps minute, white, with single row of short tentacles—reproductive polyps columnar, thickened towards apex, with- out tentacles, bearing many generative capsules. A male specimen of this zoophyte was found growing in an old shell at Granton in May 1857. The oe consists of a close network of flattened chi- yo tonous tubes, from out of which the alimentary and reproductive polyps spring at intervals. The sperm-sacs (one of which is = shown in the marginal woodcut) oe attached to the reproductive polyp differ from those of Hydractinia, te in having the endoderm attached _ eter to the ectoderm at their distal ex- ae tremities, as I have figured in the Reproductive polyp of K. reteformis : : with single sperm-sac; @, endo- sperm-sac of Hudendrium. This germ, 3, ectoderm, ¢, cavity con- zoophyte approaches the Sertu- taining spermatozoa. lariadz in the simple columnar form of its untentacled re- productive polyps, and forms the connecting link between the Tubulariade and Sertulariade. Thus we have :— Sperm or egg sacs attached to ordinary alimentary polyps, as in Sperm or egg sacs eaached ao eoproduetine | Clava, Coryne, &ce. Podocoryna fucicola, mentary polyps, which differ from ordinary ali- (Sars.) mentary polyps in having fewer tentacles, as in Sperm or egy sacs attached to reproductive polyps with rudimentary mouth and tentacles, as in Sperm or egg sacs attached to reproductive polyps, without mouth or tentacles, as in d \ Hydractinia. } Kionistes, Sertularia. V. (1.) On the Vomer in Man and the Mammalia, and on the Sphenot- dal Spongy Bones. By Joun Cretranp, M.D., Demonstrator of Anatomy in the University of Edinburgh. The remarks which I am about to make will be confined as much as possible to matters of observation. I shall resist the temptation to enter on the question of the constitution of the 92 Proceedings of the Royal Physical Society. vomerine segment of the skull, although it is one on which the statements to be made have an important bearing; I shall content myself with exhibiting the relations of this bone in different mammalia, and, founding upon these and on deve- lopment, shall show how the vomer in man corresponds in its relations to those of other animals, and what is the nature of the sphenoidal spongy bones. . Last autumn, while disarticulating the skull of a lamb, it came prominently under my notice that the central plate of the sphenoid bone adhered without marks of separation to the presphenoid, while the lateral masses of the ethmoid and the vomer formed one other single piece. On further examination I found that in mammalian skulls the formation of one piece by the vomer and lateral masses of the ethmoid was the gene- ral rule, and their separation a rare exception. This isa cir- cumstance so easily seen that one would think it could hardly escape the notice of any one in the habit of disarticulating mammalian skulls, yet I can find no description of it by authorities on human and comparative anatomy. It is, how- ever, as we shall see, the most important of all the connections of the vomer, and throws some valuable light on human ana- tomy. With respect to the other articulations of the vomer, we shall see, that that with the central plate of the ethmoid is by no means a primary one, and that the most constant of those of its inferior margin is that with the intermaxillary bones. In the ruminantia it is a well-developed elongated bone. Let us take that of the lamb as an example. It consists principally of two lamin united inferiorly so as to form a groove; deepest posteriorly where the lamin are most de- veloped, and shallowing away to a scooped extremity in front. In this groove lies the cartilaginous septum of the nose, which is continuous behind with the presphenoid bone. The pos- terior extremity of the vomer is bifid and slightly dilated, as it is in man, and in front of the dilatation the lines of mar- gin begin to approach, and seem as if they would pass directly forwards; but they are almost immediately lost as fissures in two lateral expansions, which, springing from the vomerine lamine, pass outwards to the outer and back part of the ethmoid, and are continuous with the principal arches of the On the Women in Man and the Mammalia. 93 framework of that bone. On the upper aspect there is a sharp angle between the lamine that lie against the cartilaginous septum and their lateral expansions, and the former are pro- longed in many animals beyond the angle. Where the eth- moid is joined by. the ethmo-vomerine lamina—for so we shall call the expansion just described—it forms the upper part of the nasal foramen of the palate bone, in human anatomy called the spheno-palatine foramen. In the lamb there is not much development of the vomer as a mesial plate below the level of the groove. It articulates inferiorly by a rough sutured edge with the superior maxillary bones, and in front of that its scooped anterior extremity lies for about an eighth of an inch or so on the groove formed by the mesial processes of the intermaxillary bories—the universal method of articulation of the mammalian vomer with the intermaxillary bones (fig. 1). The vomer of the eat is proportionally less elongated than that of the sheep, but like it has little development of the mesial plate beneath the vomerine groove. It articulates by a rough surface with the superior maxillary and palate bones, but with the intermaxillary bones by an elongation forward upon them of the laminze which bound the groove. These laminze are connected towards their back part with the lateral masses of the ethmoid, exactly as is the case in the sheep; and at the point where the vomer passes into the ethmoid, the latter presents a minute orbital surface, which les between the two ascending processes of the palate bone, and completes by a point in its inferior margin the almost perfect nasal foramen of that bone. The sphenoid process of the palate- bone lies between the ethmo-vomerine lamine and the ptery- goid bone. The central plate of the ethmoid does not at all touch the vomer in early life, but the cartilaginous septum of the nose passes back beneath it to the presphenoid bone. It may be mentioned at once that the nasal foramen of the palate bone is completed by the ethmoid in all the animals examined. The relations of the vomer in the fow and the pig are the same as in the cat. In the case of the hedgehog, as in the sheep, it does not articulate with the palate bones. In the horse also it does not articulate with the palate bones. But the 94 Proceedings of the Royal Physical Society. superior connections of the vomer in the horse are peculiar, inasmuch as the inferior surface of the leaflets of the ethmoid, instead of lying in contact, as is usual, with the ethmo-vomerine lamina for a considerable extent, is completely floored in by the upper part of the palate bone, which is expanded for that purpose. Even in the horse, however, a slender lamina, im- mediately in front of the palate bone, and in contact with its nasal foramen, passes downwards and inwards on each side from the framework of the ethmoidal turbinations to the mar- gin of the vomer; but the vomer and it are not anchylosed until other sutures also have begun to be obliterated. The vomer in the rodentia is remarkable in having very little tendency to come in contact with the superior maxilla- ries. As far as I have observed, it is always continuous with the lateral masses of the ethmoid. In the skull of the rabbit there is only one great anterior palatine foramen ; for, although the mesial processes of the intermaxillaries project well backwards, the palate plates of the superior maxillaries do not come far enough forwards to meet them. ‘The vomer does not at all approach the superior maxillaries; its posterior margin terminates inferiorly»in a thickened angle, which articulates with the intermaxillaries in such a manner as to make their inferior aspect continuous with the posterior margin of the vomer. In front of this, the lamine bounding its groove are prolonged on the upper surface of the intermaxillaries, as we have seen in other animals (fig. 4). In the porcupine and squirrel the vomer is not in contact with the superior maxillary bones; in the rat and the beaver it 1s. In the quadrumana the mesial process of the intermaxil- laries is so slightly developed that the anterior extremity of the vomer frequently falls short of it by a slightinterval. In monkeys the vomer and orbital plates of the ethmoid are con- tinuous; but in the skull of a young Chimpanzee in the Uni- versity Museum, the arch of bone which unites them is sepa- rated at one extremity from the ethmoid by a suture, and at the other only touches the vomer. This piece of bone has all the essential characters of the sphenoidal spongy bones of the human subject. OO On the Vomer in Man and the Mammalia. 95 The vomer and sphenoidal spongy bones in man.—Having found the vomer and lateral masses of the ethmoid so univer- sally connected, we naturally inquire how they are related in man, They are not in contact. Their only connection is that the expanded portion of the vomer which grasps the rostrum lies beneath the sphenoidal spongy bones, and that these articulate with the lateral masses of the ethmoid. Now, seeing that the sphenoidal spongy bones are recognised as ossifications distinct from the sphenoid, I think we have already sufficient evidence to prove that they represent the ethmo-vomerine lamin, by aid of what we have noticed in the Chimpanzee’s skull; for it is impossible to doubt either that the distinct bone which les between the orbital plates of the ethmoid and the vomer in that skull corresponds to the ethmo-vomerine lamina of other monkeys; or, on the other hand, that it corresponds to the sphenoidal spongy bone in man. But the correspondence becomes much more distinct when we study the early condition of the sphenoidal spongy bones. The most interesting condition of these bones is when, in the skulls of young children, they can be got completely ossified and not yet destroyed by amalgamation with the neighbouring bones. In this state the sphenoidal spongy bone is somewhat of the shape of a hollow pyramid with the apex directed backwards, its inner aspect parallel to its fellow, and its cavity (the first form of the sphenoidal sinus) opening at its base into the nasal cavity in front (fig. 2). This pyramid is constructed by the union of at least three distinct pieces of bone. Firstly, there is an orbital piece, forming a portion of the wall of the orbit between the ethmoid and sphenoid, an element, I believe, in the formation of the orbital wall not hitherto observed. It articulates with the orbital process of the palate bone, and, together with the inferior piece, com- pletes the nasal foramen of the palate-bone, namely, the fora- men called spheno-palatine, but which we have seen to be invariably ethmo-palatine in other animals. The superior piece bounds the sphenoidal sinus above and on the inside, and ultimately becomes incorporated with the sphenoid bone. The inferior piece is the largest of the three; it forms the floor of the sphenoidal sinus, and the under half of its opening 96 Proceedings of the Royal Physical Society. in front, and includes the greater part of what has hitherto been recognised, and described under the various names, sphenoidal spongy bone, sphenoidal cornu, and bone of Bertin. Its inner margin is joined by the superior piece at an acute angle, and is prolonged downwards and forwards so as to lie edge to edge with the corresponding lamina of the vomer, im- mediately in front of the thick dilated part of that bone. Beneath and behind is the sphenoidal process of the palate- bone, and behind that is the internal pterygoid process. In man, therefore, as in other mammalia, we find three processes in succession from behind forwards, viz., the pterygoid bone, the sphenoidal process of the palate-bone, and an arch passing from the ethmoid to the vomer, adapted to it edge to edge; and moreover, this arch completes the foramen which divides the ascending part of the palate-bone. It in every respect, therefore, corresponds with the ethmo-vomerine lamina. The reason why the arch formed by the vomer and ethmoid is broken up in the human subject into so many separate pieces is to be sought in the characteristic peculiarities of the human subject, particularly in the very slight development of the organ of smell, and the rapid curvature of the cranio-facial arch. But on this subject I hope to speak more fully on sonte future opportunity. The inferior edges of the sphenoidal spongy bones, which in childhood he edge to edge with the vomer, are in the adult state smoothed down to a mere ridge, and considerably separated from the middle line by the ex- pansion of the sphenoidal sinuses. ee We have nowseen that the relations of thevomer to the lateral masses of the ethmoid in the human subject are essentially the same as in the mammalia generally. In early life the human vomer resembles those of other mammals in form likewise, and seems to be connected in the same manner with the intermaxil-_ lary bones. In the skulls of foetuses and young children the vomer mainly consists of two lamine extending upwards on the sides of the cartilaginous septum of the nose. The inferior edge exhibits a flat surface with a raphe in the middle line, which articulates with the superior maxillaries proper, i. e., with the part behind the anterior palatine foramen ; and which narrows to an edge behind, where it comes in contact with the palate- Pic Ave = 295 Vol. I. Royal Physical Socuety, Edinburgh. ee Zhe Wetnnitijree L ir. J Cleland etched or/ Stone, WH. MFarlane/ Lit? Baa On the Vomer in Man and the Mammalia. 97 bones. But this surface ceases abruptly in front, and only the lamina bounding the groove for the cartilage is prolonged on the intermaxillary part of the palate (fig. 3). In the adult state both the scooped projection lying on the intermaxillaries, and the remains of the surface for articulation with the supe- rior maxillaries, can be seen, when the vomer still admits of being accurately disarticulated. But this is not often, as it soon becomes anchylosed with the neighbouring bones; and even when this has not happened, it requires that portions of the other bones be sacrificed for the sake of removing it en- tire. As the face elongates, the upper part of the vomer undergoes much alteration; not only is there a considerable development of lamina in the mesial plane beneath the groove, but usually the lamine bounding the groove deviate from the mesial line, and one of them becomes more developed than the other, and is more extensively anchylosed with the central plate of the ethmoid, which, growing downwards, replaces the cartilage between them. In consequence of these changes taking place at a comparatively early period, the specimens which are sold with disarticulated skulls, and from which the descriptions in text-books are drawn up, are seldom complete, and have most frequently more or less of the central plate of the ethmoid adherent to them. Thus the vomer is described as exhibiting at its upper and back part a cul-de-sac for the rostrum. Such a cul-de-sac is often seen, but the central plate of the ethmoid invariably enters into its formation, for it 1s only the ethmoid, and never the vomer in the slightest degree, which replaces the cartilaginous septum. Explanation of Plate V. Fig. 1. The vomer and lateral masses of the ethmoid of a lamb, seen from below. a, The inferior margin of the vomer, rough posteriorly, for articulation with the maxillaries, and smooth in front, where it comes in contact with the intermaxillaries; bb, the grooves which complete the nasal foramine of the palate bones. The spaces between the grooves and the margins of the vomer represent the ethmo-vomerine lamine, and on the outer aspects of the grooves are the small orbital surfaces of the ethmoid. Fig. 2. The vomer, ethmoid, sphenoidal spongy bones, and left palate and maxillary bones, from the skull of an infant; seen from behind (slightly en- larged). a, Orbital plate of the ethmoid; 6b, posterior extremity of the vomer ; ¢, sphenoidal process of the palate bone; d, orbital surface of the palate bone, and immediately above it is the orbital portion of the sphenoidal spongy VOL. Il. N 98 Proceedings of the Royal Physical Society. bone. Between the two processes of the palate bone is the spheno-palatine foramen, completed above by the inferior portion of the sphenoidal spongy bone. e, The superior portion of the sphenoidal spongy bone. Fig. 3. Another view taken from the same specimen: a, 6, ¢, The parts of the inferior margin of the vomer for articulation with the palate, maxillary, and intermaxillary bones respectively ; d, inferior aspect of the sphenoidal spongy bone; ¢, orbital plate of the ethmoid seen in perspective; /, inferior turbinated process of the ethmoid. Fig. 4. Wlustrates the articulations of the vomer in the rabbit. Above are the vomer and ethmoid forming one bone. Beneath are the bones of the upper jaw of the left side, and a portion of the intermaxillary bone of the right side adhering to it. a, Anterior extremity of the vomer, grooved for the cartila- ginous septum of the nose; 6, the part of the vomer which articulates with ¢, the extremity ef the expanded mesial procésses of the intermaxillary bones, forming turbinations in connection with Jacobson’s organ. VI. On the Discovery of Nullipores (Calcarcous plants) and Sponges in the Boulder Clay of Caithness. By Cuartes W. Peacu, Esq., Wick. (Specimens were exhibited.) In a paper read to the Society in March 1855, “On the Calcareous Zoophytes of the Boulder Clay of Caithness,” I intimated that, at a future time, it was my intention to give you one on the flora of that formation. I have delayed from time to time, that I might search in wide localities, and thus have succeeded in procuring several specimens at Wick, and the burns of Haster and Freswick.* Mr Cleghorn has also. found specimens at Wick, and Mr Dick in and around Thurso. Although pretty widely distributed in the country, nowhere is it found in abundance. At times it is quite soft when first taken out of the clay ; it hardens on exposure, and cracks in the drying, and then, should an attempt be made to make a section, it crumbles to pieces. In one taken from the clay on the side of Wick harbour I got a pretty good slice, and have made out under the microscope the cellular structure ; it agrees with that of the Melobesia polymorpha of Harvey, as may be seen by the specimen herewith sent, mounted in Canada bal- sam, and a specimen on stone, also from Wick. In one spe- cimen, I noticed, as well as the spreading base, the papillary eminences peculiar to this species; and in another the indenta- tions made by saxicavous creatures. When passing Freswick * Since this paper was read I got, on the 18th May (Queen’s Birth-day) 1860), splendid specimens in the Burn of Strath, near Watten. Nullipores & Sponges of the Boulder Clay of Caithness, 99 Burn on one of my official visits, 1 noticed the sections of boulder clay exposed there; not having time then to devote to their examination, I thought that, although fourteen miles distant from Wick, I would try my pedestrian powers and do so, on the day kept for the Queen’s birthday (1855), should the weather prove fine. It did, and I was off early in the morning, so that I might have a long search, not only in the exposed sections of the boulder clay on my route, but every quarry and place of interest. On searching the Burn of Fres- wick, | commenced immediately at the bridge, and in the blue clay there found several flints, evidently from the chalk, hinges and portions of Cyprina, fragments of Turritella, Den- - talia, &c., all more or less broken and rubbed. These were firmly embedded, and so were all the specimens taken by me from the boulder clay. After examining the sections above the bridge, I retraced my steps, passed over the road and down the burn towards the castle, and m a nice section worn by the stream, as well as the usual stones, shells, &c., I met with a white mass, which at first, from its yielding freely to the knife, I thought chalk. After digging it out and washing it in the stream, I was surprised to find that 2¢ would swim like cork, and therefore could not be chalk. I put it carefully into one of my boxes, and searched again, and at some distance from the spot where I found the first | got a smaller piece of the same description. They are the only pieces I have met with. I have forwarded the smallest piece with this paper, enclosed in glass, and hope that you will excuse my jealous care in thus preserving the precious relic. As soon as I had fully examined all the exposed clay, I turned my steps homeward, wondering all the way what my swimming prize could be. As soon as possible, after washing and taking my tea, I out with a microscope, and placed a small portion of the mass under it, when, to my delight, bundles of spicule, and quantities of siliceous globules, were beautifully shown, as well as straight spicula, triradiate, and other shapes; the spicula hollow in the centre. I fancied it might be a Pachymatisma; but then the stellate forms were absent. It effervesced freely in dilute muriatic acid. In order to be set right, I forwarded a portion of each piece to Mr Bowerbank of London, who, with his usual 100 Proceedings of the Royal Physical Society. kindness, examined them, and informed me that they were Geodia; the species he could not tell. He farther added, “that he had found Geodia in a flint in the chalk; therefore this sponge appears to be more ancient than had been sus- pected.” We have Geodia zetlandica in our northern seas (see Johnston’s “ British Sponges,” pl. ui., figs. 3 and 4, and described at page 195). I also met with that species in Corn- wall. The piece mounted in Canada balsam will show the spicula and siliceous globules. Here, then, was a reward; for not only did the walk of at least thirty-two miles prove beneficial to the body—the mind truly enjoyed a feast; the numberless objects of beauty that stud the path of the na- turalist makes all roads cheerful; and if I were to add a list of the attractions of that day, it would, though interesting, be along one. It will be sufficient for me to say, that the excite- ment caused by every new beauty drove weariness from the body—mind triumphed over all—and to me this was a “Queen’s day” indeed! The pleasure did not cease with the day, for my collection of stores has given me much useful employment since. Add to this, the satisfaction of knowing that I had turned up a new leaf in the history of this long- gone period. Long gone as it may be, its history is hnked to the present; for the ancient organisms of the seas of the clay period have direct descendants now living in our seas, and although from our present knowledge some may be wanting, either of the past or the present, the advancing march of re- search is fast lessening the number, and filling up the gaps. Geodia is not the only sponge from this formation which has come under my notice, for in many fragments of sheils the excavations of Clionia are frequent. 1 send portions of a Cyprina and Buccinum burrowed by it. At present I have seen only a single spiculum, the colouring, and probably very minute portions of the sponge, and as well the peculiar small indentations in the excavations. ‘“ These indentations,’ Mr Hancock says, “are a very certain character which never fails to determine the habitation of the burrowing sponge, even though every particle of the animal be removed.” Un- fortunately small fragments of shells only are met with ; these have been so much rubbed and washed, that the delicate por- Nullipores § Spouges of the Boulder Clay of Caithness. 101 tions have been destroyed; there 1s, however, no dowbt about the genus. Many species “ existed during several geological periods; for instance, in the Crag, in the London Clay, in the Paris Basin, in the Chalk, in the Greensand, and in the Oolite. Mr Alder has detected it in a specimen of Pecten islandicus from a raised beach at Bute,” and to this list is now to be added the boulder clay of Caithness. Many species of Clionia also now exist in our seas, as shown in Mr Hancock’s delight- ful paper, published in the 3d vol., second series, 1849, of the « Annals and Magazine of Natural History,” from which the above quotations were taken. I again beg to apologise for so long delaying this paper. I trust that the additional matter and facts collected by that delay will plead an excuse for me. It is pleasant, when working in this once said to be barren field, to be rewarded by adding to the shells of the age, first zoophytes, and now sponges and plants. Wednesday, 27th April 1859.—T. Streruirt Wriert, M.D., President, in the Chair. Thomas Boyle Grierson, Esq., surgeon, Thornhill, Dumfriesshire, was elected a non-resident member. The usual Committees were appointed for conducting special investi- gations during the recess, The following donations to the Library were laid on the table :— Memoirs of the Literary and Philosophical Society of Manchester, new series, vols. iii, to xiv., and part 1 of vol. xv.—F rom the Literary and Philosophical Society of Manchester. Mémoires de la Société Imperiale des Sciences Naturelles de Cherbourg, tome v., 1857.—From the Society. The Canadian Journal of Industry, Science, and Art, new series, No. xix., January 1859.—F rom the Canadian Institute, Toronto. Premiére Centurie de Longicornes du Vieux Calabar. Par Auguste Chevrolat. Paris, 1858.— From the Author. The communications read were as follow :— I. Report on the Pearl Banks of Arippo, Ceylon, for Season 1858. By KR. F. Ketaart, M.D. Communicated by Dr R. K, Grevitte. In this paper the author states that he found in most of the pearl-bearing shells a worm (a species of jilaria), which he 102 Proceedings of the Royal Physical Society. considered had much to do with the formation of pearls. This worm he found in large numbers in the liver, ovary, mantle, and other parts of the oyster. He also considered, from his researches into the subject, that the ova of the oysters and the ova of worms form the nuclei of many pearls found in the soft parts of the animal, according to the doctrine of Sir Everard Home. This theory has, however, been called in question by many authors. Dr Kelaart had sent for examina- tion specimens of ovaries, containing pearls of various sizes, to the Museum of the Royal College of Surgeons, London, which he considered tended to prove the truth of these views. In pearls adherent to the shell he found the nuclei to he sand, portions of sea-weed, and larve of insects, &c. In conclusion, Dr Kelaart recommended that only the larger and more matured oysters should be fished, and that portions of the banks should be reserved for breeding purposes. Mr Alexander Bryson believed pearls to be the result of disease or of irritation, caused by the presence of foreign bodies. He stated that, in all his experience, he had found a nucleus of foreign and structureless matter, generally siliceous; also, that he could, by examining the microscopic structure of a pearl, at once infer what shell had produced it. II. Note on the Lantern Fly of Honduras. By Mr James Banks. Communicated by Dr J. A. SmitH. At a previous meeting a specimen of the lantern fly (Ful- gora laternaria) of Honduras, from Mr Banks, was exhibited, and doubts having been cast on Madame Merian’s statements as to its being really luminous at times or not, Mr Banks was requested to get farther information, if possible, on the subject. Dr Smith said he had been favoured with various letters, ex- tracts of which were read. These Mr Banks had received from correspondents in Belize, and they bore testimony to the truth of the statement of this fly really emitting a light. One from Mr Alex. Henderson, Belize, gives the following details :— “In answer to the question ‘Is it really luminous? Cer- tainly the fly possesses light, and therefore emits it. The light is evidently under its control, for it increases and dimi- nishes it at pleasure. When the wings are closed, there are. Note on the Lantern Fly of Honduras. 103 three luminous spots, one on each side of the head part, on the upper part (like a cat’s staring eyes), of a beautiful sulphur- coloured light, in rays that spread over the room. ‘The third luminous spot is seen when the fly is on its back, half way down the abdominal part of the insect. When quiescent, the lumination is least ; in daylight the upper spots are nearly white, emitting no light whatever (its lively time is at twi- light). Immediately on being agitated, or moving about, the spots become sulphur colour, and radiate forth streams of light, clearly seen, although the sun be shining into the room, as it now does at the moment I write, with the creature in the glass tumbler before me. We put out the lights, and to test the power of the fly, I took up my psalm-book and read two verses of Psalm cix. Mr Robert Gegg also took up a book at random, and read by its light. I hope this will satisfy all that the lantern-fly is indeed luminous.” He had also a letter from Dr John Young, Belize, kindly offering to make any observa- tions the Society might desire. A published statement, in the “History of the West Indies,” by R. M. Martin, 1837, vol. 11. p. 104, being vol. v. of British Colonial Library, corro- borating the truth of the lantern-fly being luminous, was also referred to. Ill. (1.) Notice of a Fossil] Nautilus from the Isle of Sheppy. By James M‘Barn, M.D., R.N. Dr M‘Bain said, that the specimen of a fossil nautilus which he exhibited to the Society was obtained from the Isle of Sheppy, along with other fossil remains, and presented to him by his friend Dr Easton, of H.M.S. Pembroke. Before placing the specimen in the public museum of Edinburgh, which, under the present energetic management, was rapidly as- suming a highly scientific character, he considered it advisable to give a short description of the state of preservation of the shell, and the locality whence it was derived. The species agreed with the description of the Nautilus Sowerbyi, given in a monograph of the Hocene Mollusea, by F. E. Edwards, and published by the Paleontographical Society. The specimen he exhibited was seven inches in diameter by four inches across, measured from one umbilical space to the other. It 104 Proceedings of the Royal Physical Society. had lost the whole of the outer or inhabited chamber, but the triangular shape of the aperture was distinctly shown by the compressed ventral margin of the remaining part of the shell. The position of the siphuncle—said to be close to the dorsal margin—seemed to be indicated by a small deposit of iron pyrites, probably caused by the organic matter having been longer retained in that canal. The interior of the shell was filled with a ferruginous clay, containing a large proportion of carbonate of lime, a stalagmitic layer of which was seen en- crusting a portion of the mass. Defoliation of the outer porcellanous coat of the shell had taken place, but what remained of the inner nacreous layer showed the strie of srowth bending sharply backwards in well-marked undula- tions. If the proportions of the fossil specimen were similar to those of the recent Nautilus pompilius, the shell, when entire, would have measured about fifteen inches in diameter. Dr M‘Bain stated that the Nautilide were in some respects the most interesting family in the molluscan sub-kingdom. They formed the type of the second order, Tetrabranchiata of Owen, in the class Cephalopada, of which upwards of 1400 fossil species have been disinterred from the Paleozoic and Mesozoic rocks. Of all the genera constituting the Tetra- branchiate order of mollusca that existed in the ancient seas, the nautilus was the only one that had been found to pass into the tertiary formations, and there were at least two species still existing in the seas of the tropics. Six fossil nautili were stated by Mr Edwards to have been found in the older Eocene deposits of England, and four of these had been ob- tained from Sheppy—the WV. centralis, NV. urbanus, N. impe- rialis, and NV. Sowerbyi. That island was well known to paleontologists as a rich depository of organie remains. It was situated on the south side, at the mouth of the Thames, and separated from the county of Kent by the East Swale, and estuary of the river Medway. The greatest length of the island, from the garrison at Sheerness to Warden Point, the easternmost extremity, was about ten miles, and it was from five to six miles in breadth. The geological structure consisted of a vast deposit of dark gray or brownish clay, rising to the height of nearly 500 feet above the sea, with Notice of a Fossil Nautilus from the Isle of Sheppy. 105 interstratified layers of concretionary nodules, commonly called septaria or cement stones. This clay belonged to the lower tertiary formation, and formed a part of the London basin—one of those isolated fluvio-marine deposits which took place in hollows of the chalk subsequent to the cretaceous epoch. On the north side of the island, and eastward from Sheerness, the cliffs rise to the height of from one to two hundred feet, and, chiefly from atmospherical causes, were constantly crumbling down in large prismatic masses, which gradually broke up, and formed a flat shore of fine silt. Mud banks extended off shore for about half a mile, and at low water workmen were employed in procuring the cement stones. The beach was not more than from ten to twenty yards wide, on which were strewed abundance of fossil fruits, wood, crus- tacea, and mollusca, which had fallen out of the clay. Dr M‘Bain said, he had frequently obtained upwards of a hundred . Hocene fossils in a single excursion, and that the remains of fish and reptilia were also of frequent occurrence in the Lon- don clay of the Island of Sheppy. He added, that many of these Hocene fossils became mixed with recent organisms, and were buried together in the re-composed silt, which the hasty generalization of some paleontologist, in a future new geolo- gical epoch, might consider as a sufiicient proof that they also lived together at the same time in the Cainozoic period. (2.) Notice of the Nucula decussata, found in the so-called Raised Sea- beach Bed at Lett). By James M‘Bain, M.D., R.N. The members of the Society, Dr M‘Bain said, were no doubt familiar with a bed of sand and gravel extending along the shores of the Forth in a more or less continuous manner, and generally known as the raised sea-beach bed. This de- posit had been considered by several eminent geologists to re- present an ancient sea-beach, which, in consequence of a gene- ral elevation of the land, had been raised twenty feet or more above the level of the sea, at a comparatively recent geologi- cal period. This view was strenuously opposed by the late Professor John Fleming, who maintained that this so-called raised sea-beach bed and other accumulations of a similar VOL. I. o 106 Proceedings of the Royal Physical Society. structure, at still higher levels, derived their origin from “ground storms” or sudden risings of the sea, by which shells, sand, and gravel, had been placed in situations now consider- ably removed from the influence of the tide. Professor Flem- ing had arrived at this conclusion as early as 1806, from ex- amining a bed of shells, chiefly composed of the common oyster shell, to the westward of the town of Borrowstounness, in the county of Linlithgow, and stretching along the banks of the Forth into Stirlingshire. The raised sea-beach contro- versy forms nearly the whole of the last chapter of his last work—‘“ The Lithology of Edinburgh.” Any new fact, there- fore, connected with this distinct marine deposit would be of interest. This raised sea-beach bed is well exposed in many parts of the coast between the sandstone quarry at Granton and the Magdalen Burn near Fisherrow. It varies in thick- ness from two to ten feet, and contains abundance of com- minuted shells, with many in a more or less perfect state of preservation. The horizontal position of the bed in re- spect to the present high-water level is by no means equal. At Granton quarry, the base of the bed is about ten or twelve feet above high-water mark, and rests upon the sandstone and boulder clay; whereas a quarter of a mile to the eastward, at a ledge of rocks projecting sea-ward, 1t is only two or three feet above high-water level. The bed is then interrupted by a sea-wall, until at the east end of the village of Newhaven. at the collection of boulders that form a boat harbour, it is again observed nearly on a level with high-water. From this point eastward the bed gradually rises in height, and at an interesting geological section of the boulder clay called the Man-trap, the base of the bed is seen to rest on the clay, 15 feet above the high-water line. Itis then lost sight of by the sea-wall in front of the artillery barracks; but Dr M‘Bain had lately an opportunity of seeing it exposed in a digging for a drain, at the north end of Albany Street, where it appeared about seven or eight feet above high-water. Nearly in a line with this digging, and south of the road op- posite the west end of Leith Docks, a foundation for a large building was begun a month or two ago; and in watching the progress of the work, after the removal of two or three feet Notice of the Nucula decussata found at Leith. 107 of artificial soil, the continuation of the sand and gravel bed was observed to cover the boulder clay at six or eight feet above high-water level. In a section made for the foundation of the east wall of the building, the boulder clay was cut down to the depth of 12 or 14 feet; and in the sand and gravel-bed overlying the clay at this part, amongst other shells usually found in this bed, a detached right valve of a Nucula was obtained, having the sculpture and characters of Nucula de- cussata. The epidermis was well preserved, and of an olive- green colour. It was marked with concentric wrinkles, and strongly raised radiating strize, with short but distinct trans- verse plice on the dorsal area. The inner surface was pearly white, and had a crenulated margin, with twelve pectinated teeth in front of the cartilage-depression, and about double that number behind. The valve was rather more elongated, and larger than the ordinary examples of the common Nucula nucleus. The WV. decussata is not recorded as having been found in the Firth of Forth, but it lives on the west coast of Scotland, and in the Hebrides, and is said by Liven to be a Swedish shell. The specimen was accidentally broken, and the fact of the valve having been found is only recorded to direct atten- tion to a closer scrutiny of the marine contents of this depo- sit, especially in sections inland from the present high-water level ; as the lateral extent of this so-called raised sea-beach bed, and its relation to other accumulations of a similar litho- logical structure, but destitute of any trace of marine remains, had not been satisfactorily determined. IV. Contribution to a Monograph of Iceland Spar. By ALEXANDER Bryson, Esq. — Part I. This communication will be given complete (along with Part I1.), in a future fasciculus of the Proceedings. V. On a Method of constructing Polarizing Prisms of Nitrate of Potash. By T. Strernint Wricut, M.D. Dr Wright stated that many doubly-refracting substances, when immersed in dense and transparent fluids, had, as was well known, the property of polarizing light. This polariza- 108 Proceedings of the Royal Physical Society. tion of light was not effected by the whole surface of the sub- stance, but only by inclined parts of it which intersected the ray in an oblique direction. In passing through such parts a beam of light was divided into two rays polarized in opposite planes. The one ray continued its original course, while the other suffered deflection proportionate to the inclination of the polarizing surface, and was thus entirely thrown out of the field of view. It occurred to the author that large crystals, having their surface artificially inclined, might, when 1m- mersed in a highly refractive fluid, be used as polarizing prisms, and he had succeeded in thus forming polarizers, one of which he placed before the Society, and which was found to be well adapted for application to the microscope. It con- sisted simply of a wedge of nitrate of potash, cut from one of the angles of a large crystal, and put up in a cell filled with eastor oil. Dr Wright stated that very beautiful objects for the polari- scope might be formed of clear plates cut from the surfaces of large erystals of nitre, and grooved in various designs. These, mounted on a colouring plate of mica, and enclosed im a plate- glass cell filled with oil of turpentine, gave rich effects of changing tint when traversed by light reflected from a glass plate or from the northern sky. Large planes of parallel polarizing crystals might be produced by crystallizing muriate of morphia on shghtly inclined plates of glass, and might be removed so as to leave designs. These figures, when mounted in Canada balsam, with colouring plates of mica, gave curiously dazzling binocular effects, or when viewed with both eyes, as the two images differed in colour for each eye. In examining objects of this class. 1 was necessary to stop off all rays but those passing at right angles to the polarising plate. VI. Notes on the Geology of Swellendam, South Africa. By Wittiam Carrutuers, Esq. (Specimens of the rocks and fossils were ex- hibited.) The specimens which formed the subject of this notice were gathered and sent to this country by Mr Robert Douglas, a self-educated and enthusiastic geologist. They were intended, Notes on the Geology of Swellendam. 109 the author said, for his late friend, Mr James Brown, a young chemist, who, by his labours and discoveries in the science to which he had devoted himself, gave promise of an active and useful life, which was, however, cut short by an attack of cholera, that in a few hours proved fatal. His retiring manners and devotion to his work made him unknown, save to a few friends, who were thus unexpectedly called to mourn the loss of one who seemed destined by his labours to command the respect of the scientific world; and the collection was some months ago placed in the hands of the writer by his father. It con- sists of nearly 1000 different specimens, with accompanying manuscripts, drawings, and sections, most elaborately exe- cuted. Valuable memoirs had been published by Mr Bain on the geology of South Africa; but he did not seem to have visited Du Toit, the locality where the fossils on the Society’s table had been gathered, as it was not mentioned by him. Du Toit is about thirty-five miles north-west from Swellen- dam. It is situated on the further side of the Lange Bergen Mountains, on the oldest beds of what, from paleontographical evidence, seems to be the Old Red Sandstone. The fossili- ferous beds are composed of coarse sandstones and shales. The fossils are chiefly brachiopod mollusea, and include Spirifer antarcticus, and Orbignit, Terebratula Bainii, Orbi- cula Bainii, &c., Solinella -antiqua, and other bivalves. Besides these there were only some Enerinite stems, and the cast of a Trilobite, neither of which could be more specifically described, owing to their bad preservation. Mr Carruthers noticed the remarkable condition in which the clay slates of the metamorphic series exist in the vicinity of Swellendam, where they have little more consistency than dried alluvial brick clays, so soft as to have permitted Mr Bain to drive a tunnel of 400 feet through them by the aid of the pickaxe and spade alone. The induration increases, however, until in other localities the rocks become, as Mr Douglas says, “ ex- ceedingly hard, siliceous, and splintery, so as to cut the hand when incautiously griped.” 110 Proceedings of the Royal Physical Society. VIL. Ornithological Notes. (Specimens were exhibited ) (1.) The Gadwall, Anas strepera, Linn. By P. A. Dassavvitte, Esq. This species being of rare occurrence in Scotland, Mr Dassauville thought it might be of interest to show the two specimens now before the Society. They were shot on the Tay, near Newburgh,.1n the beginning of April, and are a male ana female, as was proved by dissection, the ova of the female being numerous, but not far advanced. Mr Dassauville was aware of the danger that specimens obtained, as these were, in the _ poulterers’ shops, might not be actually procured in this country, since importing wild fowl from the continent was so general; but the specimens under notice were evidently so recently shot—the feet and webs being quite soft and flexible—that he had no hesitation in believing they were killed in this country, without other evidence; however, he had been obliged with a sight of the invoice which accom- panied them, dated from Perth, and felt satisfied there was no room to doubt that they were procured from the locality men- tioned. One or two sessions ago Dr J. A. Smith exhibited to the Society specimens-of the gadwall, and these were the only others he had seen that were killed in Scotland. (2.) The Shoveller, Anas clypeata, Linn.; the Great Grey Shrike, Lanius excubitor, Linn.; the Shore Lark, Alanda alpestris, Linn. By Joun ALEXANDER Situ, M.D. Dr Smith said, he was disappointed in not being able to exhibit a very fine pair of Shovellers (Anas clypeata), male and female, which he had examined; they were shot near Kincardine, on the Forth, about the Ist of April. The birds were now the property of Robert Chambers, jun., Esq., and as they were rare in this neighbourhood, their capture was worth putting on record. He exhibited an adult male Cine- rious Shrike, Zanius excubitor, which was one of our occa- sional visitors, and far from common ; it was noticed to occur generally in the beginning of winter. This bird was got on the 30th of March at Tulliallan, near Kincardine, on the Forth. Mr James Miller, the gamekeeper who shot it, had Notes on the Crania of the Bos primigenius. 111 never seen a specimen of the bird before, although he had lived for many years in the district. The last bird Dr Smith had to notice was the Shore Lark, Alauda alpestris, Linn. It is a bird of very rare occurrence, being apparently only an accidental straggler in this country ; in the north of Asia, Europe, and especially America, it abounds, and migrates southwards in the autumn to more temperate regions. The first specimen noticed in England was in 1830, and only one or two have been observed since. He had not been able to find any recorded as taken in Scotland. This bird was killed by Mr Evans, Tynefield, about the 10th of January last, near the mouth of the Tyne, and its plumage was unfortunately much destroyed by the shot. Itisa fine old male, having the back brown; tinted on the head, neck, and shoulders, of a rich vinaceous colour; the streak over the eye, the forehead, and the ear-coverts, yellow; and with the lore and a gorget of black; under parts dull white, and flanks pale reddish brown; axillaries white. It is the property of Dr C. Nelson, Pitcox, near Dunbar, to whom it was presented. VIII. Notes on the Crania of the Urus (Bos primigenius) in the Museum of the Society of Antiquaries of Scotland. By Joun ALEXANDER SmitH, M.D. Some years ago, when gathering up various details in refer- ence to the ancient small short-horned cattle of this country, my attention was also directed to the large cattle (Bos pri- migenius), and to the specimens of crania in the Museum of the Society of Antiquaries. I took various measurements of these crania, and searched the early records of the Society for such information in regard to the places where they were found, and any other details that might be of interest; and as Mr ‘Turner has favoured us this session with some details of the specimens of this great ox in the Anatomical Museum of the University, I have thought it might interest the mem- bers if I produced my old notes on the subject. There are three specimens of these crania of the Bos primi- genius in the Museum of the Society, marked Nos. 2, 4, and 5 of the “ Fossil Skulls,” &c., in the printed Catalogue of the Museum, and the following table gives some of their measure- ments :— 112 Proceedings of the Royal Physical Society. 2. 4, 3. JRivee ss Gop Wes) Ing Ft. In. Intermaxil- 1 lary bone Pes 2 3 awanting. Length of skull from supra occi- pital ridge to front of inter- maxillary bones, Length from do. to upper part of me apg Le bol _ Le) dH nasal bones, : Length from middle of supra- occipital se to ne Sal — oS _ pul — —) of orbit, . Length of orbit, Breadth of do. : Breadth of skull between roots of horn-cores, Breadth across middle ae orbits, Horn-cores—circumference of at base, Length, following outer ciavaioee’ Span of horn-cores from tip to tip, Across greatest width of horn-cores, Length of alveolar sockets for teeth, | Breadth across occipital candle) i — CS NW) eS GOO (eS bt i ~~ S 2S Stow Se 4S FO BOee S Geb we SS Oo -© 42 =) dhe | a | The cranium No. 4 was the one first presented to the Museum of the Society, by the Rev. Thomas Robertson, minister of Selkirk, in 1781. The donation was made through a Mr Cairncross, and the following letter accompanying it is preserved in the library of the Society :— ~~ To Mr George Cairncross, Writer, Parliament Close, Edinburgh (with an ox's skull and flints). SELKIRK, July 14th, 1781. “ DEAR StR—Among other curiosities dug out of a marle moss at Whitmuirhall in this parish, the skull and flints of an ox which I have sent you attracted my attention. You, I know, are fond of anything that tends to throw light upon the ancient state of this country, and therefore I used the freedom to transmit this, not merely on account of its uncommon size, but as a proof of the large breed of cattle with which this country abounded in the last century. I found five skulls, evidently larger, but not so entire. I found also several small axes, resembling those used by coppersmiths, but did not i a Notes on the Crania of the Bos primigenius. 113 think it worth while to trouble you with them. If anything deserving the attention of your Society occurs in this part of the country, I shall assuredly transmit it to you. Mrs Robertson joins me in best compliments to Mrs Cairncross and the family—with, dear Sir, your humble servant,— Tuomas Ropertson.—First Letter-book of Soc. Ant. Scot., p. 628. The skull was presented to the Society at its meeting on the 17th July 1781; and the following reference to it is re- corded in the Minute-book, vol. 1., p. 72:— “ Mr George Cairncross presented, from the Rev. Thomas Robertson of Selkirk, the bones of the head and flints of the horns of a large animal dug out of a marle-pit near Sel- kirk, at a place called Whitmuirhall. The circumference of each flint at the base is 143 inches; the length of that on the right 27 inches, of the other 28 inches; the distance between the sockets of the eyes 114 inches; the breadth of the front, which is quite flat, from the sides immediately over the sockets of the eyes, 124 inches; the depth from the top of the front to the top of the sockets of the eyes, 10 inches; and from the top of the front to the upper part of the insertion of the car- tilage of the nose 13 inches. This appears to be the animal described by Julius Cesar in his “‘ Commentaries,” Book vi. c. 5, by the name of Urus.” And the Secretary, Mr James Cumming, in a letter dated 25th July, informs the Rev. Mr Robertson that the skull was presented to the Society, and ‘in the opinion of some able naturalists among us, it is believed to belong to that species of animal described by Julius Cesar in his ‘Commentaries,’ Lib. vi. c. 5, by the name of Urus.” The cranium No. 2 is tolerably entire, but, like all the others, the lower jaw is awanting. It was dug out of a moss in the county of Galloway, and was presented to the Museum of the Society by the Rev. David M‘Robert, in the year 1782. In this cranium two of the molars remain in the alveolar sockets. Itis referred to in the Minute-book, p. 205, July 12, 1782, as follows :— “There was presented, from the Rev. David M‘Robert, the VOL, II. P 114 Proceedings of the Royal Physical Society. skeleton of the head and flints of the horns of a large animal dug out of a moss in the county of Galloway, similar in species to the one described in page 72, paragr. ult., and nearly of the same dimensions; the whole length of the front measuring 2 feet 2 inches ; two of the Dentes molares remaining in the upper jaw, each having one deep furrow in the middle, and measuring on the under surface 14 inch the one way, and % of an inch the other.” No letter relating to this skull seems to have been preserved, as, unfortunately, a gap occurs in the letter-books at this period; and from ‘the same reason we learn nothing of the last specimen presented, No. 3, except what is stated in the Minute-book, July 9th, 1782, p. 220: —‘‘There was. presented from Thomas Scott of Hapsburn, Esq., the skeleton of the head and flints of the horns of a large animal similar in species to the one described in page 72, par. ult., and in page 205, paragr. 4, and nearly of the.same dimensions, but more entire than either; the whole length of the front measuring 2 feet 4 inches, four of the Dentes molares remaining in each side of the upper jaw, of the same size and shape with those in the head described in page 205.” As far as I am aware, these are the earliest instances on record of this large-sized ox being observed in Scotland, and it is interesting to find the conclusions come ’to in regard to them by the naturalists of this generation forestalled by a small body of quiet students of the Antiquities and Natural History of Scotland meeting in Edinburgh so early as 1781; identifying these large cattle as being the same as the URwus, the gigantic ox described as occurring on the continent of Europe, by Julius Cesar, in his “ De Bello Gallico.” I need scarcely refer to the mistake made by the Minister of Selkirk in his letter accompanying the first donation, that they were the remains of cattle of what he calls the “last century.” The general opinion has been that they were extirpated in Britain before the invasion of the Romans, as historians are altogether silent on the subject of their existence. They had, however, apparently abounded, at least in Scotland, probably at a some- what more early period, which seems to be shown by another part of Mr Robertson’s letter, where he refers to various small brass axes being found along with the numerous crania of Notes on the Orania of the Bos primigenius. {115 these large cattle. Unfortunately he considered thése axes as of very little consequence, from some supposed similarity to the tools of coppersmiths, though what work coppersmiths could have had to do in the wilds of Selkirkshire, so as to have left their axes lying about in such numbers, it is not very easy to understand. He apparently mistook the nature of these weapons, which were in all likelihood the ordinary bronze axe-heads or celts, now so well known as having been the weapons and tools of the early races who inhabited the Bri- tish Isles, and which have been found over the whole country, as well as in the stone cists the tombs of the ancient people. I exhibit various specimens of these bronze celts, palstaves, and socketed celts, which, I doubt not, correspond to the coppersmith’s axes of the letter referred to. The accom- panying woodcut shows various types of these axes. It has been stated, that bones of the Bos primigenius have been found indented with the primitive stone javelin of the aborigines of the north of Europe; here we apparently have them in close relation to the bronze weapons of a possibly still later age, showing that these animals roamed in our forests and marshes, and were hunted by the inhabitants of these early times in at least our northern kingdom of Scotland. Professor Owen says, “from the very recent character of the osseous substances in the remains of these cattle, it may be concluded that the Bos primigenius maintained its ground 116 Proceedings of the Royul Physical Society. longest ‘in Scotland before its final extinction. And Pro- fessor Nilssen of Lund believes that the Bos primigenius was found in a wild or half-wild state in the forests of central Europe down even to the beginning or middle of the sixteenth century. (See papers on the Extinct and Existing Animals of Scandinavia,” in “Annals and Magazine of Natural History,” 1849.) Dr J. A. Smith exhibited the skull of a sheep (a wether) which, from the singular variety in the form of its horns, had been sent by Mr Sanderson, bird-stuffer, George Street. The horns were closely adjoming each other at the base, in the centre of the forehead, as in the buffalo, and from this point they were bent outwards and upwards like those of the ox. The Society then adjourned to next winter session. PROCEEDINGS OF THE ROYAL PHYSICAL SOCIETY. KIGHTY-NINTH SESSION, 1859-60. Wednesday, November 23, 1859.—Anprew Murray, Esq., President, in the Chair. Ramsay H. Traquair, Esq., 30 Clarence Street, was elected a member of the Society. The following donations to the Library were laid on the table, and thanks voted to the donors :— Proceedings of the Literary and Philosophical Society of Liverpool, for Session 1858-59, No. 13.—From the Society. Canadian Journal, Toronto, Nos. 20, 22, and 23, for 1859—From the Canadian Institute, Toronto. Journal of the American Geographical and Statistical Society, Nos. 1, 2, 3, January to March 1859. New York.—F rom the Society. Conservatory Journal (Newspaper), No. 7; Boston, U.S.A.— From the Editor. Recherches Experimentales sur les Effects du Courant Hlectrique, appliqué au Nerf Grand Sympathique. Par M. Phillippe Comte Linati, et par M. Prime Caggiati, M.D. Parme, 1859.—From the Authors. Anprew Murray, Esq., President, then delivered the Opening Ad- dress, as follows :— GENTLEMEN,—It is the custom of this, as of most other Societies, to open the business of the session with an address from one of their Presidents; and our rule is that this duty shall be performed by the senior President on the occasion of his retiring from office, it so happening that the terminal period of that office coincides with the commencement of our session. The term for which I was elected President now draws to a close; I am about to lay down the honour with which you invested me; and the duty of addressing you on VOL. II. Q 118 Proceedings of the Royal Physical Society. the present occasion therefore devolves upon me. The occa- sion, although an opening one as regards you, being thus a closing one as regards me, naturally suggests that the subject of my address should be of a retrospective nature; and so it has usually been considered by my predecessors in this office. The kind of retrospection, however, which of late years has formed the subject of their addresses, has, alas! almost exclu- sively been the funeral orations of eminent members removed from us by death during the previous year. Year after year death has gone on picking one by one the best (though not always the ripest) fruit from among us. One year it was Edward Forbes; the next year it was Hugh Miller; the year after, Dr Fleming; and it was clear that no President would have well fulfilled his duty who, in his address, had passed over the deaths of such eminent members of our body without a suitable record and eloge. Owing to the importance of these losses, this species of retrospection has necessarily been pre- vented from falling into arrear. And now, when, thanks be to God, we have had a momentary respite, and have passed over another year without having such another limb lopped off, the President of the day can turn to another kind of retrospection, which has fallen into arrear, or, I should rather say, which has never, since the revival of the Society, been begun to be brought up. Not that we have no losses during the past year to deplore, but that those which have been sustained are of members who, however able and regretted by us all, have not occupied that space in the public eye, nor achieved that amount of eminence in science which distin- guished the members whose names I have just mentioned. Thus had I written, gentlemen, when, on entering this room, I find my congratulations dashed to the ground by the melan- choly intelligence of the death of Professor George Wilson, which has just been communicated to me. Although not now one of our working members, we cannot forget that Professor Wilson was formerly one of our Presidents, and that of late he has been one of the foremost men in our scientific world in Edinburgh. The loss will be felt both as a public and a private one. His genial and amiable disposition endeared him to his friends and acquaintances; his abilities and attain- The President’s Address. 119 ments secured the regard and admiration of the public. The direction in which these have been exercised of late years lay more peculiarly in the walks followed by other societies, which he more frequently honoured by his presence and valuable contributions, and by them his loss will be more severely felt, and from them we may look more fittingly for a narration of his life and labours. To them I will leave it then, and at once proceed with what I was about to say regarding a summary or view of the progress made during the previous year or years in the sciences cultivated by the Society. The desirableness of such periodical reviews or reports will not be disputed; and the general persuasion entertained of their value is sufficiently indicated by three-fourths of the annual Presidential addresses professedly aiming at giving such reviews. And yet the practical results of such attempts are far less satisfactory than might be expected. The student of any department of science might naturally expect that, by referring to an address of this nature, he would find a resumé or abridgment of the most important work that had been done in that department during the previous year. But he will generally find himself disappointed; he will find refer- ences to such proceedings and discoveries as he already knows, but seldom to much beyond this. And the reason of it is this: the scope of the address is usually too wide; it embraces too much; and as the writer cannot omit notice of the main discoveries which have been the ornament of the year, by the time he has gone over these his space is ex- hausted, and more minute details are impossible. It is only in societies having a very restricted, single, and direct object, that it can be possible to give a comprehensive summary of all the progress made during the past year. In a society embracing so many, so large, and so well-laboured fields as this does, it would obviously be impossible to compress into a single address (even supposing any one individual were com- petent to do so), a full or satisfactory resumé of the progress of the sciences in which we are interested during any one year. It has, however, been suggested to me by our excel- lent Secretary, that a less ambitious attempt might be more within reach of success; and that, by restricting the field 120 Proceedings of the Royal Physical Society. of operations, a more useful, in so far as a more complete, review might be given. In this Society, although we are all bound by a common bond of union, and all feel an in- terest in every one of the departments of science which are treated of here, we are not equally proficient in them all. Each has usually some particular branch of our common study in which he feels a greater interest than in the rest. Each has made greater progress in the knowledge of some one special department ; and without in any way depreciating the extent and the value of his general knowledge of the whole, each 1s undoubtedly better qualified to give a review or sum- mary of the progress of that branch with which he is him- self most familiar. It has been suggested to me, then, that if those of our Presidents who in their address should wish to cast a retrospective glance over the progress of science were to confine themselves to a report upon the branch with which they are most familiar, we should in the course of a few years have a series of summaries which might be really practically useful to the student—at all events, more so than any merely general retrospects could possibly be. In my present address I propose to act upon this principle ; and taking that branch of science, Entomology, which is my favourite department, and that branch of it (Coleoptera) which I specially affect, I shall endeavour to lay before you a view of what has recently been done in this science, both at home and abroad :— | Beginning with the works on systematic entomology published during the last three years or so, facile princeps, whether in extent and import- ance of subject, or in the mode in which it is executed, stands Lacordaire’s Histoire des Genres des Coleoptéres,—a work now in course of being pub- lished as one of the Suites d Buffon. For a long series of years, ever since the days of Fabricius, Latreille, Olivier, &c., when the whole number of insects known did not exceed many hundreds, down to the present day, when 100,000 species but faintly represent the number actually known (there are 90,000 species of insects of all orders in the Berlin Museum), en- tomology has been going on constantly increasing, without any systematic work or general treatise upon it having been executed. An enormous number of species have been separately described in transactions ar periodicals ; numerous combined descriptions of new species peculiar to individual districts have been published; and also a number of local faunas, such as those of Hrichson, Stephens, Redtenbacher, Mulsant, Heer, Rossi, &c. Many most valuable monographs and treatises upon special groups of Coleoptera have also been executed, such as Dejean’s Carabide, Aubé’s Hydrocantharide, Erichson’s Staphylinide, Burmeister’s Lamel- licornes, Schonherr’s Curculionidae, and a host of others. To attempt to lick these into shape—to throw them all into one common systematic The President's Address. 121 treatise, embodying at their proper places the thousands of independent notices scattered through a crowd of transactions and periodicals—dispos- ing of questions of disputed synonymy—deciding the great questions of disputed arrangement, and where these appear wrong correcting them, or offering a new solution of the difficulty,—is a task requiring the pa- tience of Sisyphus and the powers of labour of Hercules, combined with talents, attainments, and facilities possessed by very few. Such is the task which is now being successfully carried out by Professor Lacordaire. Five volumes have already appeared: the first is occupied with the Carabide ; the second, the Staphylinde and Clavicornes; the third, the Lamellicornes; the fourth, the Buprestide, Elateride, and Malaco- dermata; and the fifth, with the Heteromera. The manner in which a systematic view of the subject is given is this:—The characters of the different groups, larger and smaller, are separately detailed; a full exposition of the characters of each genus, with its synonymy, is then separately given; a notice of its geographical distribution, or any specialty relating to it, is added; and in a note, a list of all the species hitherto described is given in the shortest space possible, with occasional synonymical corrections. A beautiful atlas or volume of plates, giving figures and details of the rarer genera, is to accompany the work ; and here, as ‘in the text, every care is taken to save unnecessary expense. In the lists of the species given in the notes, for instance, instead of bur- dening them with the species which have been described in the chief monographs on the subject, Professor Lacordaire assumes that these are already in the library of every entomologist, and merely says, “ To the 150 species (or whatever the number may be) described by Dejean, add the following.” So in the plates, nothing that is to be found in works -easily accessible is here repeated. ‘This has been carried so far as even to assume the aspect of a defect—at least | am sure that the majority of purchasers would gladly have paid a little more for a larger series of figures of rare genera than has yet been given. The result of Professor Lacordaire’s labours, however, is that this is undoubtedly the most useful entomological work of the present day. It is a perfect storehouse of information, and forms a new starting-point from which entomologists may take a fresh departure. In according to it so much commendation, I am far from implying that it is perfect, or implicitly to be trusted to. It is ew necessitate in great part a compilation, and, as in all compila- tions, the accuracy of the work depends upon the accuracy of the original deseriber, not of the compiler. Next in importance to this work of Professor Lacordaire we have a number of very valuable monographs. The concurrent opinion of ento- mologists has been of late years expressed so strongly against the prac- tice, once common, of giving isolated specific descriptions of individual insects in transactions or periodicals, that such descriptions are now be- coming proscribed, unless where some special reason exists for signalizing an individual—as, for instance, its being of a very anomalous character, so that its true position may be matter of doubt, or its supplying a vacant gap, or furnishing an interesting unknown representative in one country of a group peculiar to another country. Except under such circum- stances, one does not now often meet those isolated descriptions with which the young beginner used to essay his flight. Something connected is now looked for, and entomological writings either assume the form of monographs or local faunas. I shall first glance at the recent monographs. One very important one is a monograph of the Hlateride by M. Candeze of Liege (a pupil of M. Lacordaire), which has been executed with a care and skill worthy of his great master. M.1l’Abbé de Marseuil’s mono- graph of the Histerida@, lately published in the Annales of the Entomo- 122 Proceedings of the hoyal Physical Society. logical Society of France, is another most admirable specimen of what a monograph should be. In addition to a good description, an engraved outline of every species is given—an assistance which those who have puzzled over the great number of species apparently alike, and only dis- tinguished by their delicate seulpturing and punctuation, will know how to appreciate. Another important monograph has been brought to a close within the last three years—Boheman’s Monographia Cassididarum. ‘The first volume has been before the public for some years; the second is now also, and the favourable verdict which had been pronounced upon the first is confirmed on the second. So many additional species have since been discovered, that he informs me that a supplement has become necessary, and will be published. Two other monographs have appeared or been commenced upon other families of the subpentamerous Phytophages. One a monograph upon the African Cryptocephalt, published by M. Suffrian in the Linnea Entomo- logica two years ago. M. Suffrian had previously monographed the Cryptocephalide of Europe, and also those of North America. He is now engaged upon those of Australia, to which, although Mr Wilson Saunders’ papers in the 4th volume of the Transactions of the Entomo- logical Society of London formed a valuable contribution; much still remained to be done. The other monograph lately published, in this group of families, is the Catalogue of the Hispide in the British Museum, by Dr Baly— first volume. In accordance with the enlightened course followed by Dr Gray in publishing lists of the contents of the British Museum, these, from originally consisting of a mere list of what was im the museum, have gone on improving, first into a list both of deseribed spe- cies already in the museum, and of the desiderata not in the museum ; then advancing into a description of new species in the museum besides those already described ; and at last assuming the form of perfect mono- graphs by the first authorities, containing their newest views of arrange- ment, the deseriptions of species both old and new, and this not merely the new in the museum, but all the new that can be collected from every quarter; so that, while practically the interest of the museum im it is limited to the letters B. M. appended to the species it possesses, its real interest extends to the whole scientific world. Dr Baly’s work is the pro- duction of a careful and acute naturalist, and is a credit to the science of this country. Herr Gerstacker has commenced a work under the title of Entomogra- phien, of which the first volume, lately published, contains a careful mono- graph of the Endomychide; and as M. Guerin-Meneyille has also given his views'on that family, firstin Mr Thomson’s Archives Entomologiques, and afterwards in his Revue de Zoologie, we may approach the study of that dif- ficult family without fear of suffering from imsuflicient advice. I confess, however, that it is rather an embarras de richesses. It is possible to have too much of a good thing; and two monographs on the same subject, published by two eminent men at the same time, is a case in point. With the poet we may say—‘‘ How happy could I be with either, were t’other dear charmer away.” We have seen the same thing happen before. It happened with Kirby and Latreille. When Kirby brought out his chiefest work, the Monographia Apum Anghe, Latreille’s Genera appeared within a few weeks of it; but there the competition only shed lustre upon both. Work- ing upon a nearly new subject without communication with each other, they hit upon the same divisions, established families and genera upon the same characters, and, generally, the results to which they came were s0 identical, as to give confidence to men of science that the subject had ~The President’s Address. 123 been carefully and conscientiously investigated, and that the conclusions to which they had come were to be relied upon. One fortunate accidental circumstance in that case prevented the embroilment of synonymy becom- ing so great as it would otherwise have been: Kirby, instead of giving separate generic or subgeneric names to his minor sections, indicated them merely by a greater or less number of asterisks or Greek letters, so that the generic names which had been given them by Latreille stood and answered both for his own sections and for those of Kirby. In this in- stance the same coincidence does not occur. Gerstacker has taken his generic characters chiefly from the parts of the mouth ; Guerin-Meneville from the elytra, the legs, and the prosternum—which latter, however, has also been made use of by Gerstacker ; but fortunately, before Gerstacker’s work issued from the press, he had the opportunity of seeing Guerin’s papers, and he points out the differences between them in an appendix. Some other valuable monographs have appeared in various periodicals, or in occasional works which are issued by one or two zealous entomolo- gists—in the Opuscules of Mulsant, the Archives of Thomson of Paris, and the Etudes Entomologiques of Motschoulsky, &e., &c. In his Opus- cules, Mulsant has published several valuable monographical papers, con- tributions to the history of the Pedinites, and others of the Heteromera. M. Motschoulsky has given a monograph of the Lampyride or glow- worms, and of the Malacodermata, in his Htudes. Mr Thomson is publishing a monograph of the Cicindelide, with coloured figures of every species, in a style of ‘‘luwe’’ (we have no word which expresses the meaning so well) hitherto unequalled. He has also, with equal magnificence, in his Archives, monographed the Anacoli, Tragocephali, &c., limited but beautiful tribes of Longicornes. Several lesser mono- graphs have also lately appeared, such as that of M. Bouldieu on the Ptim (Ann. Soc. Ent. Fr.); and of M. De Bonvouloir on the Thros- cide, &e. Let us now turn to the special additions to our knowledge of insects and of their geographical distribution. We naturally turn our eyes first to our native country, and inquire what advance British Entomology has been making. From various causes, the zeal of our entomologists has of late chiefly taken the direction of the Lepidoptera. Mr Stainton, by his personal energy, as well as by his work on the Tineina, has given a great impulse to the study of the Microlepidoptera; and his Entomolo- gust’s Annual, which has been the chief outlet to the votaries of British Entomology, has naturally been principally occupied with the department which its editor most affects. Mr Jansen, however, in that annual has done good service to the Coleoptera, by placing upon record the capture of such species as were not previously known to be British—or rather, not recorded in Stephens’ Manual as British. This record of additions, which is prepared with much care, comes at a most suitable time to aid Mr Waterhouse in his unpretending but most laborious construction of a catalogue of all the British species of Coleoptera. As this is not merely a catalogue of all Stephens’ species, with the addition of such novelties as Mr Jansen and others may have recorded, but a careful examination of every specimen in Stephens’ collection, and an unravelling and compari- son with continental names of his and Kirby’s synonymes, so as to give us a true list of what is really native (no doubtful species being admitted), it is obvious that it is a work which could only be undertaken by a con- summate entomologist. He has published about the half of it; and as, for the sake of certainty and harmony with the continental nomenclature in such difficult families as the Staphylinide and Nitidulide, he has ex- pressly visited the continental collections, so as to see the true types of Erichson and others, we have a work of European value. I can truly 124 Proceedings of the Royal Physical Society. say, that there is-no work falling within my present subject which com- prises so much skilled labour in such small space. This catalogue is the first step towards our procuring a good manual or entomological work in the English language, giving descriptions of the species found in Britain. Members are aware that we have no such work, and that at present, for good working books of reference, we must have recourse to the Continent, although even there they are not far ahead of us, no good work on the subject having been yet completed, although some are in progress. The British works which we do possess are Curtis’s British Entomology, Wilson and Duncan’s Entomologia Edinensis, and Stephens’ Illustra- tions and Manual. Of these, Curtis’s British Entomology gives a valu- able series of coloured plates, which are so judiciously selected as to represent almost every one of our modern genera. The text is certainly not equal to the plates, and I do not think that Mr Curtis would now so consider it himself. Entomological descriptions are very different things from what they were when he wrote that work. The arrangement also is confused, owing to the plan adopted—bringing out the work in parts containing a little of each department at the same time, or nearly so; and the work generally would require to be revised to suit the modern state of the science. The plates, however, are unsurpassed: they have been published separately, and other use will yet be made of them. In the meantime they give what is equivalent to the genera of most of our British insects, and that not only in the Coleoptera, but in all the other orders. The book, however, is cut of print, and, besides, was so expen- sive as to put it beyond general reach. There is now an equivalent to this book publishing in Paris, so far as the Coleoptera are concerned. It is styled the Genera des Coleopteres d’ Europe, by M. Jacquelin du Val, a very accurate entomologist, who first distinguished himself, some years ago, by publishing a revision of that most perplexing family, the Bem- bidia of EKurope. His present work gives a beautiful coloured figure, with details, of every genus known in Kurope. The other English works capable of assisting him in this object are the Entomologia Edinensis, by the late Mr James Wilson and Mr W. Duncan, applicable only to a small portion of British species, and, moreover, out of print. Stephens’ Illustrations and Manual, although of the highest value when they first appeared, are now felt to be so cumbered with blunders and inac- curacies, that many think it better not to use them at all. A few more monographs of British species of certain groups, which are everything that one could wish, so far as they go, but only embrace a small part of the subject, will not supply the deficiency. I refer to Dawson’s British Geodephaga, Walton’s British Curculionide, Wollaston’s Atomarie. If I had not praised them, I would have added my own Cercyonide and Catopside. By getting British entomologists to take up special groups in this way, we may at last obtain materials sufficient to make it easy for a compiler to throw the whole into one work. Until that is done, we must look abroad ; and although we do not obtain even there anything complete which I could recommend, we shall there find what we want in progress, either in French or German, as our inclinations may lead us. On the one hand, we have Fairmaire and Laboulbéne’s Faune Frangaise, of which the first volume only is published—a large duodecimo at a cheap price ; on the other hand we have the Insecten Deutschland, which was commenced by Hrichson, resumed, in a spirit and with an ability worthy of Hrichson himself, by MM. Schaum, Kraatz, and von Kiesenwetter. M. Schaum has taken the Geodephaga and Hydradephaga in hand; M. Kraatz has supplied the Staphylinide ; M. von Kiesenwetter is engaged upon the Buprestide and Elateride. This is the work which I would recommend for British entomologists. The fauna of Germany is in many Bt des di a r 4 ? a The President’s Address. 125 respects so similar to our own, that any new discoveries in Britain may be reasonably expected to be species already known there ; and we thus have not only a most careful guide to the species already known in Europe, but the means of deciphering any novelties. There is another book of a simt- lar nature which would be very useful to British entomologists, but is in a manner superseded by the two preceding works—a series of volumes, by M. Mulsant, descriptive of different sections of Coleoptera in France. It is a good many years since he published the Lamellicornes of France, the Palpicornes of France, the Longicornes of France, the Securipalpes of France, and now we have the Heteromera of France in progress. very one must admit the value of M. Mulsant’s works; but their extreme minuteness of description renders them less popular than they deserve. So far as regards the Huropean fauna, a great many additions can scarcely be expected. A number of new species from the Llandes and the Pyrenees have been described by M. von Kiesenwetter and others ; and some interesting small species, constituting new genera, have been dis- covered by M. Jac. du Val, near Montpelier, and described in his Genera des Coleopteres. Spain has done a little by the hands of Professor Graells of Madrid, and Dr Rosenhauer of Erlangen has described some new species from Andalusia. But the chief novelties of interest have been drawn from two sources not thought of till of late years—namely, ants’ nests and subterranean grottoes; the additions drawn from the former source have been chiefly Staphylinide, and will be found in a paper by M. Kraatz upon the Termitophila (both those in the nests of termites and ants) published in the Linnea Entomologica last year. The Troglodytes or subterranean families have produced several interesting new eyeless species, and one or two genera. The most interesting points are the fact, that every new cave, or cave-district, produces not the old previously known cave-animals, but new species, peculiar to itself. A curious blind new genus, Leptomastax hypogeus, has been found on the sands of the Bay of Besika, near Constantinople, and described first by M. Pirazzoli, and afterwards by M. Leon Fairmaire. It is peculiarly formed, allied to the Scydmenide, and has no affinity to any of the cave- insects we have yet seen, but has considerable resemblance to a small ant ; and although found at large, as it were, 1 have no doubt it is an ant’s- nest species, and will yet be found in its proper residence. Few new additions have been made to the fauna of the north of Europe. Prince Napoleon’s expedition appears only to have produced one new ' species, described by Reiche under the name of Patrobus Napoleonis ; but a good deal of useful geographical material relating to that quarter will be found in two papers by Maklin and Osten-Sacken, published in 1857 in the Stettiner Ent. Zeitung, which continues to go on prospering, and I trust long to prosper, under the able headship of its perpetual presi- dent Herr Dohrn (one of our foreign members), and nowise injured by the rise of its newly established formidable rival the Berliner Entomol. Zeitschrift, in which are to be found some very valuable papers. Among the more important original papers which have appeared in this Journal falls here to be mentioned a fauna of the Coleoptera of Greece, by Dr Kraatz and M. von Kiesenwetter. Many Russian and Siberian species have been described by Count Motschoulsky in his Htiudes Entomologiques, and the Bulletins of the Imperial Society of Moscow. A considerable number of species taken during the Crimean war, in the Dobrudska, Crimea, and other shores of the Black Sea, have been described in the Annales of the Entomological Society of France, and elsewhere. The Baron Chaudoir continues to enlarge our knowledge of the Caucasian and Mingrelian regions; and MOI: EI. R 126 Proceedings of the Royal Physical Society. M. Kolenati, in his Meletemata, has also contributed to our knowledge of this district. Passing round into Africa by the shores of the Mediterranean, we have received from Messrs Reiche and Saulcy a considerable addition to our knowledge of the entomology of Palestine, a district of which we knew comparatively little. The materials from which this contribution has been derived were collected during the expedition by M. de Sauley, who, the Society may recollect, published an interesting account of his visit to the Dead Sea a few years ago. Continuing our course round the Mediterranean, we find in Count Mot- schoulsky’s Htudes Entomologiques the description of a number of the minuter Egyptian species overlooked by previous explorers. M.de Mot- schoulsky has extended his travels into a good many districts both in the Old and New World; and, as he is an assiduous collector as well as a rapid describer (too rapid, most entomologists think), we have a good many species from his pen from all parts of the world. Continuing along the north coast of Africa, a number of new species from Algeria have been described by M. Lucas; but this applies less to the Coleoptera than to some of the other orders. Madeira should come in here. Mr Wollaston has published in the form of a catalogue, consisting of a complete series of the species of Madeiran Coleoptera in the British Mu- seum, presented by him to that institution, a number of new species detected since the publication of his great work on the Insecta Ma- derensia. He returned last summer, with an immense amount of materials for a fauna of the Canary Isles; but I grieve to say that his state of health has been too bad to allow of his putting them into shape. Little new has been recorded on the west coast of Africa until we come to Old Calabar. My descriptions of new species from that district, which by a sort of legal fiction have been read here, have gone on appearing in the Annals of Natural History from time to time, as suited my own con- venience. M. Chevrolat, to whom I confided the Longicornes, published a century of new species, among which are some of singular beauty. Dr Baly has also described some of the new genera of Phytophages in the Annals of Natural History. Possibly, stimulated by the number of novelties sent home by our friends in Old Calabar, and distributed among continental entomolo- gists, two eminent entomologists resident in Paris, Count Mnizscheck and Mr James Thomson, organised an expedition to the neighbouring territory of Gaboon, and sent out M. Henry Deyrolle, son of the highly esteemed dealer in Paris, on an expedition to that country. The results of his col- lecting, at least those species which are new, are described in the second volume of Mr Thomson’s Archives. From his descriptions it appears that a considerable number of our Old Calabar species are found in Gaboon, but that a large proportion -also is distinct; and looking to the relative num- ber of species found, I should say that our unpractised amateurs need not hide their heads in point of collecting with this crack collector of Paris. To the south lies the kingdom of Angola, of whose Coleopteral fauna little more is known than what is contained in Erichson’s fauna of that district, published in Wiegman’s Archiv. in 18438. The next zoological district which meets us as we journey round Africa is the Cape, and we may include under that head the whole coast from the Cape itself north to Natal, both inclusive. A good fauna of the Cape was greatly wanted. Several authors, as Klug, &c., had described a certain portion of its Coleoptera; and other authors, as Burmeister and Schonherr, in their great works on the Lamellicornes and Curculionide, have of course described many which fell within the scope of their subject ; The President's Address. 127 but there was no general systematic work until Prof. Boheman, of Stock- holm, four or five years ago, commenced his Insecta Caffraria. The first volume was then published; and the second, containing the Lamellicornes, has appeared during the last year. Like all Boheman’s works, this is most satisfactory. I find a general impression among working entomologists, that Boheman’s descriptions come nearer to what an entomological descrip- tion should be, not only in acuteness and discrimination, but also in attain- ing the proper medium, in point of length, than those of almost any other living entomologist. Madagascar stands blank. Nothing has been done to it during the period J am reviewing, either in the way of collecting or describing, unless we reckon as something the unsuccessful attempt of Madame Pfeiffer. The cruelty and atrocity of the queen have made it forbidden ground, and it is like to continue so, at all events during her life, unless some fortu- nate political squabble with some of our ships shall rouse our Government to interference, or a lack of other openings shall tempt some of our missionaries to that wondrous land. ; Signor Bertolini has supplied the collections of Europe with a fair sample of the productions of Mozambique, and has also given descrip- tions of the most striking. Passing Abyssinia, the Red Sea, Arabia, Persia, and the Himalayas, which have produced little or nothing new during the last few years, we shall find that a good deal has been done in India, more especially in its southern portion and Ceylon. M. Nietner has discovered and described a good many new species from Ceylon, particularly a number of minute species generally overlooked. Count Motschoulsky, in his last two years’ HKiudes Entomologiques, has also described a great many minute species, some of them of very singular and abnormal appearance. A very con- siderable number of species of Coleoptera from Ceylon have also been described in the Annals of Natural History, during the last year, by Mr Francis Walker, well known for his papers on the Chalcidites ; for his two volumes on British Diptera (Insecta Britannica) ; and tor his Cata- logues of Moths in the British Museum. Unfortunately, Mr Walker has sacrificed everything to shortness, so that, without their apology, his descriptions, so far as regards decipherableness, must rank with those of Linnzus and Fabricius. Nagpore has its name, which was already dis- tinguished in natural science, rendered still more so during the last few years through the exertions of two Scottish missionaries, our friends Mr Hislop and Mr Hunter. It is chiefly to geology that their studies have been directed, and they have brought home with them a number of fossil parts of insects, which, through their kindness, were placed in my hands for examination and description. These, so far as they were in a condi- tion to allow of its being done, I described in a paper which formed part of Mr Hislop’s general geological work, now in course of publication by the Geological Society of London. The materials were tco few and im- perfect to generalize from ; but they all belonged to the great families still common on the Indian continent—Buprestide, Curculionide, &e. The structure, however, of some of them seemed to have more affinity with certain modern Australian forms. This, however, rests on a mere hazy resemblance, insufficient to warrant reliable deductions. The arrivals of species from China, Hongkong, Singapore, Java, &c., have been few of late years, and the descriptions of new species still fewer, being limited to a few isolated species, described for their beauty, such as Carabus Fidu- ai er abuse Celestis, &c., and afew Phytophaga, occasionally described y Dr Baly. M. Motschoulsky, however, has given us the descriptions of a number of species picked up at the mouth of the Amoor and in Japan by M. Gas- 128 Proceedings of the Royal Physical Society. kevitch, probably the same person who I see announced im the papers as Russian Consul-general, under the name of Gorkwitch, who accompanied the Russian admiral, Pontiatine, as naturalist, in his visit to Japan, when the treaty with that kingdom was entered into. M. Gaskevitch was wrecked in the Russian frigate Diana, in consequence of a terrible earth- quake, and kindly treated by the Japanese, who subsisted the shipwrecked crew. Thereafter, in an attempt to rejoin the Admiral in a Russian ship, he was captured by the British, and his scientific career in these seas closed for the time by his having been sent home to be adjudged upon im this country ; where he no sooner arrived than he was at once ordered to be set at liberty. He does not seem to have liked his captivity at all, and I am sure men of science in this country will like it as little. How any captain could have conceived it consistent with his duty to arrest a scientific man in his career of usefuiness, under any circumstances, seems difficult to understand; but there are always two sides to a story—and | audi alteram partem is a rule never deviated from without subsequent unpleasant reflections. If he has now returned to fill the important part of Consul-general, we may expect to reap a good harvest of Coleoptera through his friend Count Motschoulsky. From the loss of his collections, sustained by M. Gaskevitch, the report and descriptions of the Japan and Amoor species are very meagre, chiefly Lepidoptera. Of the Coleoptera brought by him, M. Motschoulsky re- marks that they offered little resemblance to our European species, and that there were ouly found three which appear identical with those of the west—Anomala oblonga, Anobium paniceum, and Coceinella im- pustulata. All the rest belonged to the type of China and the Philippine Isles. If we have drawn little from the north of these seas of late years, the more southern portion has amply atoned for it; Mr Wallace having sent from Celebs, Aru, &c., a great variety of most beautiful and striking new species. These, for the most part, yet remain to be described ; only a few of their favourite group, the Longicornes, having been described by Mr Pascoe in the Transactions of the Entomological Society of London ; and by Mr Adam White, in the Proceedings of the Zoological Society of London. I hope we shall have many more of these species deseribed by these gentlemen. ‘There has been an intermission to the rapidity with whieh the entomo- logy of Australia and New Aealand was becoming known. Dr Baly’s — monograph of the genus Australica (the equivalent of our Chrysomelide) is, | think, the last connected description of species from that quarter. ‘There is, however, a great mass of unappropriated material collected, and it is to be hoped that ere long some labourer may arise willing to cultivate the fields now lying vacant. Passing on to South America, there is no work of any moment to record. Little groups of species, and some isolated descriptions, are all that I have to notice. One of the most interesting of these is the Agriwm fallaciosum of Chey. (also deseriked by M. Motschoulsky, under the name of Pinochile cenosa). it is found at the Straits of Magellan, comes next to the Manticore of the Cape, and forms the transition between them and the Omus of the Rocky Mountains. It thus possesses a similar interest to the Hucrania of the deserts north of Patagonia, which represent the Atewchi of Africa, Mr Bates, a most successful and scientific collector, has sent home from the Amazon an immense quantity of interesting and lovely novelties, some of which have been from time to time described by Dr Baly, Mr Thomson, &c., but the great mass are still undescribed. A curious genus, possessing the unique character of being viviparous, has been described by M. Schiodte as found in Brazil ; The President’s Address. 129 and a good many of the new species brought to this country by M. Cha- brillac have been described by Fairmaire and others in the Transactions of the Entomological Society of France. ‘The contributions to the en- tomology of the Andes, in the neighbourhood of Quito, sent to this country by our correspondent Professor Jameson, have been partially recorded by Dr Baly and myself, and a number of small species from Panaima have been described by Count Motschoulsky. Dr Leconte, a worthy son of a worthy sire, has taken entire possession of North America. He is the chief, indeed almost the only, entomological author now working in America ; but he is a host in himself. He has reviewed most of the difficult families in the United States; his revisions, in fact, being singularly able monographs, evolving the most original views. He has thus gone over the Crcindelide, Carabidae, including the Amare and Bembidia, the Hydrocantharide, the Palpicornes, the Buprestidae, the Hlateride, the Lamellicornes, and the Longicornes of North America. He has, along with Dr Harris and Melsheimer, brought out the catalogue of species of Coleoptera in the United States, and has lent his hand in every quarter of the States to the advancement of zoological knowledge. Iam here restricted to speaking of his doings in relation to the Coleoptera; but, were the time fittmg, I might enlarge on his services in regard to almost every class of animals, from the Verte- brata downwards. In the Coleoptera, at an early period, we have from his pen descriptions cf numerous species from California; we have de- scriptions of species from Texas; we have descriptions of species from Lake Superior—part of the report by Agassiz on that district ; we have descriptions of species collected during the expedition sent to report upon the routes proposed for the railway across the Isthmus of Panama—many the product of his own collections, for I believe his labours asa field ento- mologist are not less than his talents and acumen as a closet naturalist. All this work has been done within the last few years, and it is still going on. We may hail Dr Leconte as one of the first living entomolo- gists; and when we remember how comparatively scant a sympathy he has in his own country, the homage we pay him will only be the more hearty. Thanks to the Smithsonian Institution, we shall have most of Dr Leconte’s works in our library. A portion of North America, possessing special interest from its resem- blance to a part of the opposite continent of Asia—I mean the Salt Lake region as compared with the Caspian district—has lately been somewhat opened. M. Lorquin, an able French entomologist, has made collections in that district, and they have reached Paris, and are in the hands of M. Boisduval, the lepidopterist. It is the Lepidoptera to which he chiefly restricts himself, and it is to them he specially refers in a notice of the collection given by him to the Entomological Society of France. He says, ‘‘ Among these insects, many, although specifically new, have the aspect of those of the mountains of Europe, and especially of Siberia; several even are identical with some of our species.” Dr Asa Fitch, chiefly known as a zealous hemipterist, has lately brought out, under the auspices of the State Government of Pennsylvania, a work on the noxious insects of that State; among which the habits of some Coleoptera are described. ‘The care, accuracy, and perseverance shown in this work are very remarkable. Such is a hasty and imperfect account of what has been doing in the science of Entomology (department Coleoptera) for the last three years ; for its imperfections I now crave your apology. Imperfect, however, as it is, [ think the impression which it must leave upon our minds is one of awe and amazement at the inexhaustible prolificness of Nature, and some- thing also of admiration for the courage with which puny Man has set 130 Proceedings of the Royal Physical Society. himself to the apparently interminable task of deciphering and recording such a towering pile of indigest materials. The thanks of the Society were unanimously voted to Mr Murray for his services as President, and for his interesting and valuable address. The following Communications were then read :— I. Report of the Committee on Marine Zoology (with special reference to the presence of the Whitebact (Clupea alba) in the Firth of Forth). By Grorce Loean, Esq., W.S., Convener. Mr George Logan read a report from the Committee on Marine Zoology, which, after a detail of the general proceed- ings of the committee for the past season, stated that, in sweeping the beach near Seafield with a small Seine net, during the months of August and September, whitebait (Clupea alba) had been taken in considerable quantity; that speci- mens so caught had been closely compared with the sprat or garvey (Olupea spratius), and with the herring (Clupea harengus), and the distinctive markings coincided in every respect with those stated by Dr Parnell in his article on the Ichthyology of the Firth of Forth, published in the “ Maga- zine of Zoology and Botany” in 1837; and that, further, the assertion of Parnell was confirmed—correcting the statement of Yarrell to the contrary—that the tongue, and roof of the mouth of the whitebait are furnished with teeth. Specimens of the three species of Clupea were exhibited, and even a cursory view showed differences in their general appearance, although, scientifically speaking, such superficial character- istics are not to be depended upon in the absence of specific and abiding distinctions. The whitebait is much more silvery, has altogether a softer and more delicate appearance than the sprat and herring, and is much flatter or more depressed in the body. The sprat is fuller, rounder, and much deeper in the body, is not so silvery, and has not the same delicate appearance. The herring is much longer and thinner than either, has a longer head and a larger eye, and is still darker in colour than the sprat. The reporter concluded by sub- mitting to the Society that there needed be no further ques- Report of the Committee on Marine Zoology. 131 tion that the whitebait of Parnell and Yarrell existed at present in the Firth of Forth, in many localities in great abundance; and that, if properly fished with suitable appa- ratus, it would probably be found very generally distributed in the estuary. The reporter added, that when sweeping with the net in an east wind, or any wind blowing upon the shore, no whitebait appeared; and that, on the contrary, during the prevalence of winds from the shore, they were always present. A marked peculiarity was observed in re- gard to the herring, which was absent in the whitebait and sprat, viz. a constant effusion of blood from the mouth and gills, and this occurred without fail in hundreds of specimens examined. In reference to this report, Dr M‘Bain and Mr Bryson remarked that much credit was due to Professor Dick in calling the attention of the public to the large supply of whitebait to be obtained on the coast near Kinghorn and Burntisland; and through the energy of the Professor, nets had been obtained and premiums had been offered for the encouragement of the Fishery. II. A Specimen of the Canada Goose (Anser Canadensis), shot on Duddingston Loch, was exhibited by R. F. Logan, Esq. This bird was quite perfect, without artificial marks of any description, and was watchful and wary, remaining always about the middle of the lake. It was of large size. Ill. EHwtracts of Letters from Dr Livingstone’s Expedition to the Riwer Zambesi, Africa. By Atexanper Bryson, Esq. Mr Alexander Bryson read extracts from letters received from Dr Livingstone and other officers of the Zambesi expedi- tion by a friend in Glasgow, describing the valley of the “ Shire,” and giving some particulars of the natives, besides stating that the steamer which had been sent from Liverpool had turned out a complete failure in every respect; but the information contained in these letters is in substance the same as that which appeared in the report of the meetings of 132 Proceedings of the Royal Physical Society. the Royal Geographical Society of London. In a note to one of the letters Dr Livingstone says: “ A Mr Wilson of Glasgow served us most conscientiously with provisions; everything was of first-rate quality, and I should feel pleased if you would thank him for me. Wilson is a good fellow, whoever he is, and I would not go by him on any account on another occasion.” Mr Bryson remarked, that had Franklin’s expe- dition been supplied by such a purveyor, in all human pro- bability they would have been spared, as it was now proved beyond doubt that their lives were sacrificed by the accursed cupidity of the contractors, who supplied them with putrid provisions. Mr Bryson concluded by moving that a me- morial to the Lords of the Treasury be prepared, urging the Government to send a more suitable vessel to the Zam- besi, which was unanimously agreed to. Wednesday, 25th January 1860.—Wit1t1amM Rurnp, Esq., President, in the Chair. The following gentlemen were elected the Office-bearers for the Session 1859-60 :— Presidents— William Rhind, Esq., Thomas Strethill Wright, M.D., Alex. Bryson, Esq. Council—George Logan, Esq., W.S., Professor Balfour, James M‘Bain, M.D., R.N., John Coldstream, M.D., Andrew Murray, Esq., John Cleland, M.D. Secretary—John Alexander Smith, M.D. Assistant-Seeretary—James Boyd Davies, Esq. Treasurer— William Oliphant, Ksq. Librarian—Robert F. Logan, Esq. Library Commitice—Patrick Dalmahoy, Esq., W.S., W. H. Lowe, M.D., John Anderson, Esq. Robert Brown, Esq., 15 Buccleuch Street, and the Rev. Robert Hunter, late of Nagpore, were elected Members of the Society. The following Donations to the Library were laid on the table, and thanks voted to the donors :— Transactions of the Botanical Society, Vol. VI. Part II., 1859.—F rom the Society. The Canadian Journal, No. XXIV., November 1859.— From the Canadian Institute, Toronto. Patent Office Reports, U.S.A. ; On the Reproduction of a Medusa. 133 Arts and Manufactures, 1856, 3 vols.; Agriculture, 1856, 1 vol.— From the United States Patent Office. Smithsonian Report for 1857; Detence of Dr Gould by the Council of the Dudley Observatory, Albany, 1858. —From the Smithsonian Institution, U.S.A. Reply to Statement of the Trustees of the Dudley Observatory. By B. A. Gould, M.D. Albany, 1859.—From the Author. Memorial to Government on behalf of the Livingstone Expedition. Mr Andrew Murray reported that in accordance with the resolution of a previous meeting, a memorial had been drawn up and forwarded to the Chancellor of the Exchequer, praying that immediate assistance be granted to the exploring expedition in Africa under the command of Dr Living- stone; and he was glad to state that the assistance required had since been granted by the Government. The Communications read were as follows :— I. On the Reproduction of a Medusa, belonging to the genus Lizzia. By Professor Epwarp Criaparepe, Geneva. Communicated by Dr T. STRETHILL WRiGHT. M. Claparéde stated that he had captured, in September last, in Lam* lash Bay, a number of floating eggs. On examining these eggs he foun in each a true medusa, with four radiating gastrovascular canals, an eight tentacles—four short and four long, the long ones corresponding to the radiating canals. A careful search was rewarded by the discovery of the animal which had produced these eggs, a twelve tentacled medusa of the genus Lizzia; the bulbs, which in the embryo gave rise to the longer tentacles, being in the adult each furnished with two of these ap- pendages. The peduncle was laden with eggs; of these eggs some ex- hibited a germinal vesicle and spot, others well-developed medusz, but in none was the stage of segmentation of the yolk observed. The question was, whether the boilies in question were eggs or buds? It was true that no males of this form of Zizzia were found. But the males might be more rare than the females, or, as Dr Strethill Wright had observed in one case, might have a form different from that of the female. The structure of the bodies was that of true eggs. The canals of the medusz which they contained had no communication with those of the parent, differing in this respect from the canals of the budding medusas of Sarsia. The buds of Sarsia, moreover, did not exhibit the germinal vesicle and spot. The author stated that the reproduction of meduse, without the occurrence of a fixed hydroid stage, had been observed by Gegenbaur and Krohn, but in these cases the embroyos had to undergo important alterations in form before presenting the characters of the parent. M. Claparéde considered it possible that reproduction in Lizzia might also take place with the intervention of the planuloid and hydroid stages. Mr A. Murray congratulated the Society on its good fortune in having commenced a correspondence with so distinguished a naturalist as M. Claparéde; and proposed that the thanks of the Society should be trans- mitted to him for his important communication, which was unanimously agreed to. Dr Strethill Wright considered M. Claparéde’s paper of the highest importance. Its author, it was true, had not traced the gradual develop- ment of the ovum into a medusa, nor had he seen the segmentation of the vitellus, but Dr Wright had convinced himself that in a majority of VOL. Il. ) 134 Proceedings of the Royal Physical Society. zoophytes the vitellus never divided; it became minutely granular and opaque without segmentation. Still, some intermediate form might occur even within the egg. The male of this Lizzia might differ in form or development from the female, as was the case in the medusoids of Atractylis (Hudendrium) ramosa, and Campanularia dichotoma (Lovent). It was well known that although in some zoophytes the re- productive apparatus of the male and female was identical in shape, in others the difference was very remarkable. II. Note on an Instantaneous Method of finding Microscopic Objects under High Powers. By T. Stretuin, Wricut, M.D. The author stated, that when examining small living organ- isms under pressure, he had frequently much difficulty in placing them under the higher-powered objectives with sufil- cient rapidity. The animals often commenced breaking up before they could be found. By adopting the following method of finding objects, he could instantly, and without even looking through the body of the microscope, place in the centre of the field, and in focus, any object which could be barely detected by the naked eye. The fine adjustment slide was marked by a small scratch on the brass-work, and it was afterwards not used. A speck of paper or other substance, sufficiently large to be just per- ceptible to the naked eye, was placed in water on a glass slide, covered with thin glass, placed in the centre of the field, and accurately focussed under the high-powered object-glass. The coarse adjustment was then marked by a scratch on the body of the instrument or the slide of the rack (“scratch No. 1”). The operator then placed the point of his nose on the top of the coarse adjustment screw-head, and the left side of his forehead against the projecting rim of the eye-piece, and looked towards the object with the right eye. The object was hidden from the eye by the body of the microscope. The body of the microscope was then raised by the coarse adjust- ment until the object again just came into view, emerging from behind the convex rim of the objective. This point of adjustment was then marked (‘scratch No. 2’’). The operator had thus four adjusted points: first, the tip of the nose; second, the side of the forehead ; third, the most convex part of the rim of the objective; and fourth, the object. The three first of these adjusted points were permanent, while the Remarks on the Museculus Kerato-Cricoideus. 135 last might be changed for some other object. When the microscope was marked as above, an object might instantly be found and focussed at any future time by adjusting the microscope to “scratch No. 2,” placing the nose and forehead as described, and the object required to be focussed in the fourth adjusted point, and screwing down the body of the microscope to “ scratch No. 1.” The author illustrated his method before the Society, by instantly placing and focussing several small objects under the microscope without looking through the eye-piece. III. Remarks on the Musculus Kerato-Cricoideus, a Muscle of the Laryna. (Merkel’s Muscle). By Wm. Turner, M.B. (Lond.), M.R.C.S., Senior Demonstrator of Anatomy, University of Edinburgh. The muscular arrangements of the human body have been, _ during the last two or three centuries, so thoroughly examined, and carefully described, that it rarely falls to the lot of a modern anatomist to discover, merely by the aid of his un- assisted vision, a new muscle. To such a structure, however, the attention of anatomists has been recently directed by Dr Carl Merkel of Leipsic, in an elaborate treatise on the Ana- tomy and Physiology of the Organs of Voice and Speech (Stimm und Sprach Organs, 1857). In this work he has de- scribed a muscular slip occasionally extending between the posterior surface of the cricoid cartilage and the posterior margin of the inferior cornu of the thyroid, and thus forming one of the intrinsic muscles of the larynx. His account of the muscle is as follows :— ** Musculus Kerato-cricoideus. Horn-Ringknorpelmuskel. —This small, hitherto undescribed muscle, is not found in every larynx, and when present, it exists only on one side, for which reason I have considered it as one of the unsymmetrical mus- cles of the larynx. It arises, about 1-14’ broad, close to the origin of the outer (or anterior) fibres of the musculus crico- arytenoideus posticus, so that it appears as an additional por- tion of the same, and probably has been hitherto so regarded by anatomists, or as such overlooked by them. It does not, how- ever, pass upwards with this last muscle, but extends ob- liquely upwards and outwards, and after a short course 1s 136 Proceedings of the Royal Physical Society. attached to the posterior margin of the inferior horn of the thyroid cartilage. The inferior laryngeal nerve passes under it, and the kerato-cricoid ligament crosses it at nearly a right angle. The entire muscle is about 3-4” long. Its action, which certainly cannot be important, is to fix the lower horn backwards and downwards; it opposes in some measure the part of the crico-thyroid muscle connected to the anterior margin of the horn.” (Pp. 132, 133.) ~My attention having been directed some months ago by Professor Goodsir to this description of Dr Merkel, I have since that time carefully examined the larynx in almost all the subjects received into the dissecting-rooms of the University, and have thus been enabled to supplement the account of Dr Merkel with some additional particulars, as well as to correct an error into which he has fallen. ‘Thirty-two specimens have been dissected by me, and amongst these the muscle existed in seven cases, being in the ratio of 21°8 per cent. In four of these it was on the right side only, in two on the left, and in one on both sides. Thus, the statement of Merkel, that the muscle “ exists only on one side,” is not absolutely correct ; and although it is undoubtedly true as a general rule, yet, like most general rules, it admits of occasional exceptions. I have had a drawing made of the larynx, which was from a male subject, in which this double muscle was found, an en- graving of which is here subjoined. The kerato-cricoid muscle is not confined to the larynx of one sex, aS I have found it both in the male and female. The majority of cases in which it was present were certainly in the male, but I do not feel disposed to attach much importance to this circumstance, as the examination of a larger number of instances might perhaps alter the proportion, and render it equal in the two sexes. The muscle exhibits considerable differences in breadth; thus I have found it as much as one-eighth of an inch broad in one larynx (that being the broadest one I have yet seen), and a mere thread in another,—other specimens furnishing examples between these two extremes. In length it corre- sponds to the distance between its origin on the cricoid and its insertion into the inferior cornu of the thyroid,—a few Remarks on the Musculus Kerato-Cricoideus. 137 tendinous fibres being found at each of these extremities. The muscle appears to be developed in a direct relation to the other laryngeal muscles, for the largest example I have yet seen occurred in a larynx the muscles of which were unusually well formed, whilst the smallest example was found in a larynx a Inferior cornu of thyroid. 8 Cricoid cartilage. ¢ Kerato-cricoid muscle. d Inferior laryngeal nerve. possessing comparatively feeble muscles; at the same time, it must be stated that its existence in a larynx is not necessarily coincident with a general laryngeal muscularity, as I have dissected more than one larynx in which no trace of Merkel’s muscle could be found, although the other muscles were ex- tremely well developed. The inferior laryngeal nerve passes under, z.e., in front of, this muscle, and sends a small filament to it. The kerato-cricoideus must thus be classed amongst the occasional muscles of the larynx, and, like other occasional 138 Proceedings of the Royal Physical Society. muscles, the psoas parvus for example, it is most frequently found only on one side—either the right or left, as the case may be—the only instance as yet recorded of its existence on both sides being the one above figured. With regard to its function, it must be evident that it is not essential to the production of the voice, seeing that it is ab- sent in the majority of persons. We cannot, however, doubt that in those cases in which it exists, it determines certain modifications of sound; for an organ so delicately constructed as the human larynx, and sounds capable of such varying modulation as those of the human voice, depending for their production upon such minute alterations in the relative posi- tions of the vocal cords, will necessarily be more or less affected by the contractions of muscular fibres which, from their attachments, are capable of changing the relative posi- tion of these cords to each other. But until in the same indi- vidual an examination can be made of the powers of the voice during life, and of the muscular and other arrangements of the larynx after death, it will be difficult to determine with any exactness not only the function of this, but also of many of the other laryngeal muscles. 1V. (1.) Notice of the Capture of an enormous Cycloid Fish in the Bay of San Francisco, California. By AnpREw Murray, Esq. This was a notice of an enormous fish taken at San Francisco. It was 360 pounds in weight, between seven and eight feet in length, and 5 feet 2 inches in girth round the body. It was supposed by its captors, who were probably New Yorkers, to be a giant specimen of the sea basse, or black basse, which is common on the east coast of America, especially about New York; but a scale of the fish, which had been sent home by Mr William Murray of San Francisco, showed that it was not a basse at all, nor any of the perch family. The scale was cycloid, not ctenoid, and the fish was more likely to have belonged to the sea-bream tribe of carps than to the sea basse. No fish of that magnitude belonging to these tribes seems hitherto to have been recorded. (2.) Mr Anprew Murray exhibited a supposed meteoric stone, sent from Hudson’s Bay; which, on a section being made, was found to be simply a smooth rounded mass of ironstone. V. The Skeleton of a Celogenys (mus) paca was exhibited by Joun Crevanp, M.D.; and various peculiarities of its structure were pointed out. VI. Dr Brattosiotsxy addressed the Society at some length on the relations of the branches of trees and plants to the parent stem, forming as they did certain definite angles; he expressed astonishment at finding various evergreens exposed to the cold of our winters which in Germany _ Specimens of the Top-knot, ce. 139 were carefully kept in glass-houses. He also made some remarks in support of the recent German theories against the generally received opinions of the igneous origin of granite, and in favour of its aqueous origin. VII. (1.) Dr John Alex. Smith exhibited a Specimen of Bloch’s Top- knot (2) (Pleuronectes punctatus, Bloch), taken near North Berwick ; and of the 4iquoreal Pipe-fish (Nerophis equoreus, Kaup.) from the Coast of the Isle of May. The specimen of this small flat fish of the genus Rhombus of Yarrell was sent to Edinburgh by Sir Hugh Dalrymple. It was taken in the be- ginning of August last, near North Berwick. Two species of this genus have been described as closely resembling one another,—the Rhombus hirtus, or Muller’s Top-knot (Yarrell); and the R. punctatus, or Bloch’s Top-knot (Yarrell). But, unfortunately, the fins of this fish not being per- fect made it difficult to decide to which of these so-called species it belonged.* The upper surface, the left, and brown-coloured side of the fish was very rough, and the under surface was white, and also rough, though in a less degree ; with the exception of the under side of the head, which was smooth. Muller’s Top-knot was deseribed as being perfectly smooth on the under surface, whereas Bloch’s fish was rough ; if this was a correct distinction, it would identify the specimen as being not Muller’s but Bloch’s Top-knot, which, as far as he was aware, had not before been observed in our neighbouring seas. Muller’s fish was also rare; but specimens had been obtained at distant intervals in the Firth, especially towards its mouth. This fish measured about eight and a half inches long, by about five inches across, including the fins. Dr Smith also exhibited a specimen of the A%quoreal Pipe-fish, Syngnathus or Nerophis equoreus (Kaup), measuring twenty inches in length. It was taken about three weeks ago among the long weed on the coast of the Isle of May. The dorsal fin, the only fin this species has, was about two and a half inches in length, and terminated nearly in the middle of the length of the fish, the vent being in a line with the beginning of the last fourth of the fin. It is of rare occurrence in our seas. Dr Parnell says, ‘‘this fish was first recorded as British by Sir R. Sibbald in 1655, who obtained a specimen in the Firth of Forth. No other instance of its occurrence in that locality has since been noticed. It is one of the rarest of our British fishes.”? Dr Kaup says, ‘‘ This species has till now been found only on the south-west coast of Scotland, in Ireland, the Isle of Man, at Havre, and in Norway.” He was indebted for the fish to Mr John Anderson of the Royal Em- porium, George Street; and he had the pleasure of presenting it to the Museum of the University. His friend Dr M‘Bain had in his possession an imperfect specimen taken from the stomach of a cod, which was pur- chased in Edinburgh. (2.) Dr John Alexander Smith exhibited Specimens of the Stoat (Mustela erminea); the Ruff (Tringa pugnax) ; the Shoveller (Anas clypeata) ; and the Young of the Black Scoter (Oidemia nigra). Messrs John Dickson & Son, gunmakers, Prince’s Street, had sent for exhibition two specimens of the stoat or ermine (Mustela erminea, * Sir John Richardson since the date of this meeting, has kindly informed Dr J. A. 8. that he is ‘‘not convinced of the two species being distinct, and the ‘Skandinaviens Fiskar’ contains a fine figure of an intermediate form : all three are probably slight varieties.” ‘ 140 Proceedings of the Royal Physical Society. Lin.) got in this neighbourhood. One was killed as early as the 27th of October, but the other not till the beginning of January. They were both nearly pure white, with the point of the tail black; showing the severity of the season. A male and female ruff (Tringa pugnasz), shot in the neighbourhood of Carnwath in the beginning of September, were exhibited; and a young male shoveller (Anas clypeata), shot near Aberdour in the end of December; the keeper who killed it had never seen the bird before. Maegillivray, in his “‘ British Birds,” mentions that “in Scotland no authentic instance of its occurrence, at any season, has come to my knowledge.” It has, how- ever, been observed once or twice since his time. Dr Smith also exhibited two large ducks, one killed in November last, on the coast of Mull, the other near Prestonpans, some weeks ago. Their unusual appearance had attracted attention, and gave rise to some correspondence in ‘‘ The Field,” one of the London sporting newspapers, as to the species to which they belonged. The birds, Dr Smith said, were undoubtedly young females of the black scoter (O:demia nigra, Flem.), the least common of our two scoters; and, in this immature plumage, rather puzzling birds to a young naturalist. Their general plumage was of a dusky brown; the top of the head, from base of bill and along back of neck, brownish black; sides of head below eye, of throat, and neck, grayish white; the abdomen of a dull grayish brown, the brown feathers being edged with white ; under tail coverts dark brown, no enlargement on bill, which, as well as the feet, was of adusky brown colour. In one of the birds the bill was of a lighter colour at the nostrils. One of these birds was sent by Mr Sanderson, birdstuffer, and the other by Mr Small, birdstuffer, George Street. ‘Through the kindness of Professor Allman, he was able to exhibit another immature specimen of this bird from the valuable collection in the Museum of the University. The occasional appearance of Oidemia nigra in this im- mature plumage has led, it is believed by naturalists, to the introduction, by mistake, of the Oidemia leucocephala (Steph.) among the list of British birds. Jenyns says, there is no good authority for considering the O. leucocephala as British. It is a bird of eastern Europe. Wednesday, February 22, 1860.—T. Strermitt Wrieut, M.D., President, in the chair. M. Edouard Claparéde of Geneva was elected a foreign member of the Society. The following donations to the library were laid on the table, and thanks were voted to the donors :— Large Map of Chicago, Illinois, U.S.A.—From Lieutenant-Colonel J. D. Graham, U.S. Topographical Engineers. Transactions of the Zoolo- gical Society of London, Vol. IV., Part VI., 1859. Proceedings of the Zoological Society of London, Parts XXV. (1857), XXVI. (1858), and Parts I. and II., 1859.—From the Society. The Quarterly Journal of the Geological Society of London, Vol. XV. Part III. No, 69, August 1859.—From the Society. The Journal of the Royal Dublin Society, No. XV., October 1559.—From the Society. Journal of Geological Society of Dublin, Vol. VIII. Part II., 1859.—F rom the Society. Osteological Remains found in a Picts House. 141 The Communications read were as follows:— 1. Notice of various Osteological Remains found in a “ Pict’s House” in the Island of Harris. By James M‘Bain, M.D., R.N. (The speci- mens were exhibited.) Dr M‘Bain said, that the fragments of bone which he exhibited were brought from the Island of Harris, by Captain Thomas, of Her Majesty’s surveying vessel Woodlark. They were found during last summer in one of those interesting buildings commonly called ‘‘ Picts’ Houses,”’ which was opened at a place named Nisibost, in the Island of Harris, for the purpose of extending former observations made by Captain Thomas upon these ancient structures. ‘The fragments of bone had been put into the hands of Dr M‘Bain, in order to determine to what species of animals they belonged. And as there is historical evidence that the antiquity of ‘* Picts’ Houses” extends at least beyond a thousand years, he thought the remains of animals preserved in these buildings worthy of being consi- dered zoologically, in reference to the extinction or extirpation of species. An anatomical description of the bone fragments, fifteen in number, was given. They belonged to the following species of animals :—The dog ; the common seal; the red deer (part of the antlers of which had been cut and fashioned by a sharp instrument) ; the “ Bos longifrons,”’ character- ised by the form of the cancellous horn-core, which formed one of the specimens ; the sheep, of small size; and the right middle metacarpal or cannon bone of a small horse, rather larger than that in the skeleton of a Shetland pony in the Barcleian Museum of the Royal College of Surgeons of Kdinburgh. These fragments of bone were found on the clay floor of a ‘‘ Pict’s House,” buried under a mass of drift sand ten feet thick ; and in an adjacent cell, a stone querne or hand-mill for grinding corn was discovered, made of hornblende slate, but too much decomposed for pre- servation. Dr M‘Bain stated that ‘‘ Picts’ Houses” had been divided into two classes—the superficial, or those which are built upon the natural surface of the soil; and the subterranean, or those which are excavated to a greater or less extent beneath the surface. That examples of each class existed in the Orkney Islands, where several ‘‘ Picts’ Houses” had been explored. ‘They had generally been found to contain the bones of domestic animals, such as the sheep, ox, and horse, along with abundance of shells of the edible species of mollusca. In the ruins of a ‘ Pict’s House” near Skaill, on the mainland of Orkney, the tusk of a wild boar was discovered, ‘its presence,” as it had been remarked, ‘‘ taking us back to a very early period.’’ In a subterranean “ Pict’s House” opened at Savrock, near Kirkwall, in 1848, the head and part of the horns of the red deer were found, along with the bones of sheep, cattle, horses, and a large bone of a whale. The red deer must soon have become extinct in Orkney, for there is no certain historic record of its being alive in the islands, although the contrary seemed to be indicated by the fact that a headland and a harbour still retained the names of Deerness and Deer- sound. Reference was then made to a collection of bone fragments in the Antiquarian Museum of Edinburgh, presented by A. H. Rhind, Esq. of Sibster, obtained from a “ Pict’s House’? at Kettleburn, in the county of Caithness. This collection contains the bones of the goat, pig, rat, and fish, besides those belonging to the same species of animals as the fragments from Nisibost. Dr M‘Bain concluded by saying, that the investigation of ‘‘ Picts’ Houses,’’ Pictish broughs or castles, tumuli, and other structures supposed to be of contemporaneous age, had hitherto been undertaken chiefly upon archeological and ethnographical consider- ations. That the primitive construction of these buildings, especially in VOL. II. T 142 Proceedings of the Royal Physical Society. respect to the form of the arch, the absence of mortar and lime for cement, and other indications of a low state of architecture, carried us back to a remote period of barbarism, perhaps not far in advance of the time when the Bos primigenius, with other extinct or extirpated animals, roamed over the wild parts of Britain. That considerable attention had been paid to the preservation of implements, weapons, ornaments, and other relies of human art, disinterred from these ancient dwellings; but it did not appear that much care had been bestowed upon the animal remains, which were at least of equal importance. That the object of his communication was to show that these had a special zoological bear- img, and that much information of a definite character might be obtained if the subject were to engage a more general interest, and if every one having an opportunity were careful in collecting and preserving the re- mains of animals found in these primitive habitations of our Celtic an- eestors. II. On the Structure of Pearl. By Atexanprer Bryson, Esq. (Numerous illustrative specimens were exhibited.) The author commenced by stating that the first mention of pearls being used as ornaments by mankind was found in the ancient writings of the Chinese. So early as twenty-two and a half centuries before the Chris- tian era, pearls are enumerated as tribute or tax. In the Rh—ya, a dictionary compiled one thousand years before Christ, pearls are men- tioned among the most precious products of the empire. Grill, a Swede, long resident in China, was the first who published an account of the Chinese method of forming artificial pearls. This interesting paper is published in the Transactions of the Royal Swedish Academy for 1772. He says— When the shells (the Unio plicatus) rise to the surface of the water to sun themselves, they open their valves. The Chinese, watching their opportunity, insert between the mantle and the shell a string of coarse, ill-coloured pearls, placed at intervals on a cord or wire. When these are inserted, the shells sink to the bottom of the pond, where they are allowed to remain for one year, when they are fished up and opened; the coarse rough pearls are now found coated with a fine covering of nacre. In the joss shells are placed clay images of Buddha, which, when sufficiently covered with naere, are skilfully sawn out by the Chinese, and worn and worshipped by them as the emblem of the creative power. Lin- nus, probably unaware of what had been done in China so many hundred years before our era, endeavoured to produce artificial pearls by piercing the nacreous shells from without, and inserting foreign bodies; but his success was not so great as his patron, King Frederick Adolphus, had anti- cipated. So sanguine was his Swedish Majesty that that diseovery would enrich his country and decorate his court, that he conferred a pension and a patent of nobility on the great naturalist. Had this honour been conferred on Linneus for his ‘‘ Systema Nature,’ the monarch would have been more honoured, and the conferred title of Von Linné perhaps respected by posterity. Unfortunately for the monarch, his empty title is forgotten, and Linnzus, not Von Linné, remembered with veneration by all true lovers of nature. Mr Bryson remarked that, though the French are now by far the most successful producers of artificial pearls, he had failed to obtain the slightest hint of the method employed, no paper having appeared, as far as he was aware, on the subject. The only notice of the formation of the coques de perles of the French which he had obtained was by Von Siebold, who has given, in his “ Zeitschrift fiir Wissenschaft- liche Zoologie,” a description of the process. It differs very little from that followed by the Chinese. A piece of nacre is sawn from a shell Notes on the Chough or Red-legged Crow, §c. 148 of the required form, and placed between the mantle and the shell of a nacre-producing mollusc; when sufficiently coated, it is filled with mastic, and a small plate of mother-of-pearl placed at the back. In regard to British pearls, the author stated that the first notice of the gem was by Tacitus in his ‘‘ Life of Agricola;’’ and that the pearls were the pro- duct of the fresh-water mussel of our rivers (Unio margaritafera), was evident from the description, that they were “not very orient, but pale and wan.’”’ To the theory advanced by Arnoldi in 1696, anew by Sir Hiverard Home in 1818, and also by Kellart in 1858, that pearls, or rather their nuclei, were due to the sterile ova of the molluses which pro- duced them, the author gave his decided opposition, as, from all the facts which he had observed, pearls were entirely due to a secretion from the mantle of the animal. ‘To illustrate the strueture of pearls, Mr Bryson exhibited a larye series of sections which he had prepared, and by which he showed that by the microscope he could at once determine what shell had produced them. He also explained the rationale of the irridescence of mother-of-pearl,—a discovery due to Sir David Brewster, who proved that it was due to the diffraction of the rays of light, caused by the out- cropping edges of the laminz, and in some cases to the minute plication of asingle lamina. This phenomenon was also shown by Barton’s patent buttons, where the irridescence was produced by thousands of minute lines, so near each other as to require a high magnifying power to resolve them. By taking an impression with black wax under considerable pressure, the author succeeded in obtaining the same irridescence as exhi- bited by the button itself. This experiment Sir David Brewster had tried with success in 1815, by taking an impression in wax from a mother-of- pearl button, and by which he demonstrated the cause of the phenomenon. The commercial value of pearls, the author stated, was still as high as in the days of Cleopatra. A good Scottish pearl, with fine lustre, of the size of a pea, fetches from L.3 to L.4. The famous wager between Antony and Cleopatra gives us an insight into the value of pearls. The twe pearls which that luxurious queen resolved to dissolve in vinegar, and serve up at the costly banquet, were valued at ten million of sesterces, about L.76,000 sterling. ‘The pearl in the possession of Mr Hope, M.P., the largest of modern times, is not worth a fourth of that sum. The weight of this pear! is 3 oz. ; it is 44 inches in circumference, and 2 inches in length. Notwithstanding the great value of the pearls, the shells of the animals yield now a far more profitable return than the jewels. In 1856, the total value of the pearls imported into this country was 1.56,162, whereas the imports of 2102 tons of mother-of-pearl! shells were valued at L..76,544. Mr Bryson suggested that trials should be made to produce artificial pearls from the Iridina, a nacreous shell, having a much higher lustre than any hitherto found. It inhabits the Nile and Senegal rivers. III. Notes from the neighbourhood of Stranraer—on the Chough or Red- legged Crow (Fregilus graculus); on the Migration of the Swift (Cypselus apus, Flem.); and on the Effects of the severe Gale on the 9th September last. By the Rev. Tuomas B. Betz, Leswalt, Wigton- shire. Communicated in a letter to Dr J. A. Smirtn. The Rev. T. B. Bell, in his communication, says,—‘‘ The chough is common all along our rocky shores, building on cliffs and in caves along with his mischievous companion the jackdaw, and sometimes in the same cave with the rock pigeon. He annoys the farmers by digging up the sprouting wheat, and tearing up the roofs of their stacks. He is not by half so wary as either the rook or jackdaw, and consequently falls a fre- 144 Proceedings of the Royal Physical Society. quent victim to the herd-boy’s gun. He is a pretty bird, very easily domesticated, but void of genius. He does not care to congregate, is not clamorous, and never goes far inland—perhaps not above a mile; but he shifts his roosting quarters frequently from one cave or rock to another, prebably just because the wind shifts. ‘“« On the 19th of July last, I observed a migration of several hundreds of the common swift. I knew that these birds, breeding only once in the season, were the first of the swallow tribe to leave our shores, but I had no idea that they left us so early. I have not had any opportunity of watching their habits for nearly twenty years, as they do not frequent tais peninsula; indeed these are the first I have seen here during a resi- dence of nearly nineteen years. Perhaps l may mention the particulars of this flitting in as few words as possible. Ist, The weather was very warm and still, with a few fleecy clouds overhead. The hour was be- tween five and six in the afternoon. 2d, The direction from which they came was N.E., as 1 thought—probably from Ayrshire. They passed over me as I stood on the shore, at a spot about five miles north of Port- patrick, and, holding on their way, I judged, that they would reach the Irish coast somewhere about Portaferry. 3d, Their flight was direct, and steady, and quiet—no wheeling nor screaming, such as they practise when feeding or sporting round some old gray tower. They seemed to have important business on hand, and went about it in a businesslike way. The level of their course was not high. They swept over the cliffs, which ure not above 150 feet high, and seemed to retain the same level, as far as I could see them crossing the Channel. I should guess the height at about 250 feet, or even less. 4th, The order of flight.—They travelled in a wide column. ‘The individual birds were many yards asunder; some were 100 yards to one side, some as many to the other side of me, and in this fashion I observed them for fully twenty minutes ; sometimes there were twenty in sight directly overhead, then half-a-dozen, then for a second or two there were none, and then another scattered detachment. In this order the stream flowed on, till at length it ceased. It is difficult to conjecture how many there may have been in all; at the time I guessed them at nearly a thousand. I never had an opportunity of witnessing the migrations of any of our smaller birds, except occasionally flights of linnets in beating up to windward before a gale; and I thought that to escape hawks they invariably moved under cover of night. Larger birds, such as ducks, geese, swans, I have frequently seen on the move in day- light; while the swallows which congregate on our house-tops in September are found some morning to have made a night-flitting, and usually a moonlight one. ‘« There is another fact I may mention to you: On Friday, the 9th Sep- tember, we had,’’ he continues, ‘‘ our first equinoctial gale. It lasted for about a week. On the 10th I picked up (at the place where I had seen the swifts in July) a stormy petrel, the Procellaria pelagica of the Atlantic. These birds were frequently seen off our shores in former times; but now they seem to keep outside of the Mull of Cantyre. Whether an increase of steam navigation has driven them from the Firth of Clyde to the open ocean, I cannot say. The same gale cast ashore a vast number of meduse. So numerous were they that each tide left a belt of them, at high-water mark, of ten or twelve feet wide, all along the beach. There seemed to be only one species, of a pinkish shade, with four dull white eyes, and varied from two to four inches in diameter. They were not so fleshy as some specie: I have seen. Those washed up by one tide were found to be quite dry, and left little but a membrane when the next tide came in. ‘The most remarkable result of the gale, was the destruction of many thousands of the short-winged Notes on the Chough or Red-legged Crow, §c. 145 sea-fowls. From Corsewall Point to the Mull of Galloway, all round the shores of the Bay of Luce and of Loch Ryan, razor-bills and guille- mots were lying in heaps. I did not observe any other species. | do not think it difficult to account for the destruction of these pretty birds. From the middle of June till the gale came on, the waters off our coast were literally swarming with the fry of various fish. The conse- quence was that the sea-fowl congregated in unusual numbers, which seemed to increase day by day. The storm came on suddenly, and was of unwonted violence for the season of the year. The fry were of course either driven off or compelled to retire from the surface. The long- winged gulls and gannets were able to get away by flight; while the short-winged razor-bills, who trust more to their paddles than their pinions, had nothing for it but either to breast the sea, or drift on to a lee shore. Deprived of food they could not long face the heavy sea that came rolling in from the Atlantic, and having struggled on for several days they were at last swept ashore—most of them dead, some so ex- hausted that they could make no effort to get away. Though thin, they were not so thin as to suggest starvation as the sole cause of their death ; but want of food for several days, combined with the exhaustion induced by struggling so long against a head sea, seems sufficiently to account for the prodigious mortality among them. This is confirmed by the fact that no gulls nor gannets perished. The former easily obtained shelter and food on shore, while the latter, with their tremendous power of flight, escaped to sheltered bays and coasts. *¢ Several years ago we had a great mortality among the guillemots, but the features of the case were quite different. During a heavy fog in the month of April a large flock of these birds were seen circling over the point of the pier at Stranraer. Next morning they were found dead and dying, scattered all over the country, some of them miles inland. I presume they had been trading to the south——had in the mist mistaken the entrance of Loch Ryan for the Channel; that they were brought up by the shore, where they expected to find open sea; in fact, that they had lost their way, and perished in attempting to find it again. “ T cannot say that there is anything remarkable in our fauna. We have few rare birds. The quail is resident; it is known by the name of ‘wet-my-foot,’ words which its cry closely resembles; and the country people fancy that it is like the peacock and raven, vociferous before rain. The young quail early develops his pugnacity ; although there are twelve or fifteen in a brood, they cannot live in harmony till able to fly ; by the first of August they are broken up into parties of two or three. In sum- mer we have the pippet, the blackcap, and the grasshopper warbler. The wild swan visits us in severe winters. Some years ago a wounded female remained on the lake at Lochnaw, and during several successive seasons bred with a male of the mute swan. The progeny were genuine mules, and did not breed. A golden eagle sometimes floats high overhead, trad- ing between the Morne Mountains in Down and the solitudes above New Galloway. He occasionally descends to the ground.” The Society were much indebted, Dr Smith said, to the Rev. Mr Bell for his communication, including, as it did, various interesting facts from his own observation. He exhibited a specimen of the chough sent him by Mr Bell, and also one from Cornwall, which had been presented to him by a friend. The bird was supposed by some of our ancient writers to be peculiar to Cornwall; and hence arose the name of the Cornish chough. Jn Cornwall, at least in the western part of the county, it seemed now to be rare, as Dr Smith had seen no specimens there during a visit he had the pleasure of paying last autumn to that most interesting county. 146 Proceedings of the Royal Physical Society. It was, however, a rare bird, although found at various places along the rocky coasts of Britain, and appeared to be abundant in Wigtonshire. It was found in the island of Mull, in Skye, and at St Abb’s Head, on this side of the island. The account of the migration of the swift was also very interesting. It seemed to have been rather an early one; at least this bird is generally described as leaving us about the beginning or middle of August. IV. (1.) Notice of a New Leaf Insect. By Anprew Murray, Esq. Mr Murray exhibited a beautiful photograph of the under side of a butterfly, in every respect exactly like a dead leaf. He had received it from Dr William Traill, H.E.1.C., presently stationed at Russeleondah in the Madras Presidency. Dr Traill, in transmitting the photograph, writes :—‘‘ I wished to have sent you a curious insect, brought to me as a leaf insect. In Singapore and the Straits, where a variety of these singular forms are found, they are all allied to the Orthoptera, or the genera Mantis, Empusa, Phasma, &e. 1am a good deal accustomed to their various forms, but on this occasion 1 was completely taken in, and until the animal moved, I thought it a dead leaf. To my surprise, I found it to be a butterfly! When at rest, its two anterior wings (which are slightly falcate at the tip) were pushed forward in front of its head, so that a central line on them exactly met a similar central line on the posterior wings, so as to simulate the mid-rib ofa leaf. The four wings so disposed presented the most exquisite resemblance to an autumnal leaf; and even the veining is represented with wonderful fidelity, especially if the animal is held two or three feet from the eye of the spectator. A remorse- less rat one night carried off the insect, along with the pin on which it was impaled; but I had a few days before got a photograph of it made, which I now send you. It is, however, very far from giving a just idea of the original. The upper side of the wings were most brilliantly coloured, but I do not remember exactly what colours.” Of course, these brilliant colours will only be seen when the insect is in motion; when at rest, and more exposed to danger, the folding back of the wings conceals them, and shows only this extraordinary resemblance to a leaf. The re- semblance is every whit as great as that exhibited by the leaf insect proper (Phyliiwm), only being that of a dead leaf instead of a green one. The insect appears to be undescribed, and, from its powers of concealment, is no doubt rarely captured. Most butterflies have lines on the anterior and posterior wings, often both above and below, which become continuous when placed in juxtaposition ; and there are several exotic species which have a line similar to the mid-rib of a leaf figured upon the under side of the wings ; but none hitherto described at all approach the present in its close resemblance to a leaf, both in shape, veining, and shading. It is impossible, from merely a photograph of its under side, to determine its genus ; but from its faleate anterior and single-tailed posterior wings, it probably belongs to the same group of the Nymphalide as Amathusia and Zeuxidia. (2.) Description of New Sertulariade, from the Coast of California. By Anprew Murray, Esq. (With two Plates.) The interest which attaches to the existence of closely allied forms in far distant regions induces me to publish the follow- Description of a New Sertulariade. 147 ing isolated descriptions of five new Sertulariadzfrom the coast of California. With one exception, they are all most nearly allied to species found on the British coasts, viz. to Sertularia operculata, S. jilicula, Plumularia falcata and Plumularia cristata ; and I may notice that along with them I received the stems of a Hudendrium which I cannot distinguish from EL. ramo- sum of our own coast, although, from the want of the vesicles it is impossible to decide whether it is a distinct species or not. -To secure absolute accuracy in the figures, they have been drawn by the aid of the camera lucida. 1. Sertularia tricuspidata, Murr. Pl. VI. fig. 1. Cells inversely pear-shaped and nearly opposite, a single one in the axilla of each pinna; mouth at end of cell, aperture obliquely truncate, tricuspid at the outer edge; middle cusp longest. Vesicles unknown. The habit of this species is perfectly that of S. operculata. Its cells, however, are broader, shorter, stouter, and less acutely conical; they are not perfectly opposite; they do not meet each other at the base, and are more everted; they are tri- cuspid on the outer lip, the middle cusp being longest, and the lateral cusps are nearer it and more reflexed than is the case in S. operculata, when it has two lateral teeth. It grows in tufts from 2 to 3 inches high, flexuose and ser- rulated, with polype-cells which are fully as much everted as is usually the case in this family, instead of being less so, as is the habit of S. operculata. There were no vesicles in my specimens. Bay of San Francisco. 2. Sertularia labrata, Murr. PI. V1. fig. 2. Cells nearly opposite, a single one in the axilla of each pinna; mouth at end of cell; lip distinct, not toothed; aper- ture obliquely truncate. Vesicles not known. Like S. filiculain habit. The cells, however, are differently shaped, more like those of the last species, but not toothed. The lip is distinct. 148 Proceedings of the Royal Physical Society. _ I have received only a minute portion, without vesicles. Bay of San Francisco. 3. Sertularia corniculata, Murr. Plate VI. fig. 3. Cells not quite opposite, sometimes nearly alternate, form- ing an open cup resting on the stem ; lip not distinct ; exterior margin somewhat projecting at tip; a single one in the axilla of each pinna. Vesicles pear-shaped, with two long points projecting like horns at the thick end; aperture between them. This is a very elegant little species, and is easily distin- guished by the two long horns at the top of the vesicles, which remind one somewhat of a fool’s-cap, and by the wholly open cells. Bay of San Francisco. 4, Plumularia gracilis, Murr. Plate VII. fig. 1. Stem slightly flexuose, branched; branches alternately pin- nated ; cells ranked closely in twos and threes ; tubulous, with a plain yim slightly peaked in front ; vesicles oblong-oval. The characters of this Plumularia do not differ greatly from those of P. falcata; but its habit 1s so different that it can scarcely be mistaken for it. The branches are closer, and more thickly set, than in P. falcata; their arched disposition is wanting; and the whole plant has more the aspect of a Ser- tularia than a Plumularia. The cells are proportionally larger than in P. falcata; instead of a plain truncate rim, it has one slightly peaked in front, or excised at the sides. Each cell has also a sort of support, like a triangular buttress, below it, marked or lined off from the cell itself. Bay of San Francisco. 5. Plumularia struthionides, Murr. Plate VII. fig. 2. Shoots simple, plumous, the pinne alternate; cells close, each occupying the whole of one side of the joint to which it is attached, cup-shaped, with a toothed margin, of which the teeth are unequal, the one in front projecting much more than the rest; vesicles gibbous, girt with toothed ribs. This species is nearly allied to P. cristata, but is much closer in habit, both the pinne and the cells being nearer each TBasire, Sc. Sea PFs. Os Vit. SS Wi Wae Royal Physical Soetety, Edinburgh. ji Aiwa “«K oe | Tas PSS I an Gi WE ys i a Mie Ste ; i} Description of New Sertulariade. 149 other. The cells are wider-mouthed and shallower. Besides the projecting process in front, there are about ten teeth round the margin instead of eight, and they are unequal instead of being equal ; the first two and the last two are long and slender, and the whole are variable in size and development. The vesicles are considerably larger than in P. cristata, and the ribs are toothed. When dry, this species, like P. cristata, becomes curved in a falcate manner, and the pinne are frequently laid to one side, so that it assumes a good deal of the form of an ostrich _plume, in reference to which I have given it the above specific “name. = Bay of San Francisco. EXPLANATION OF THE PLATES, Plate VI. Fig. 1. Sertularia tricuspidata, natural size; a, portion of same, magnified. Fig. 2. Sertularia labrata, nat. size; a, portion of same magnified. Fig. 3. Sertularia corniculata, nat. size? a, portion of same magnified. Plate VI. Fig. 1. Plumularia gracilis, nat. size; a and 6, portions of same, magnified. Hig. 2, Plumularia struthionides, nat. size; a, portion of stem, magnified; b, vesicle, magnified ; c, portion of pinna, magnified ; d and¢, cells, more highly magnified. (3.) Notice of Chameleon tricornis. By Mr Murray. Mr Murray bronght under the notice of the Society some peculiarities of this curiously-formed species of chameleon, which had been brought from the interior of the Old Calabar district of West Africa, by one of the natives, to the Rey. Mr Baillie, by whom it was presented to Mr Murray. The male is characterised by three salient horny processes on the head; the female has not these. Many lizards have singular spiny projections on all parts of the body. In allusion to the prongs on the head it had been named Chameleon tricornis ; but it had also two other names, OC. Owenti and C. Bibronii, the latter having been applied to the female. The Rey. Mr Baillie remarked, that this species was said by the natives to feed upon a particular kind of tree, on which it was usually found; but that this was, no doubt, an error, arising from the chameleon frequenting this tree in consequence of its being more peculiarly the habitat of the insects it fed upon those around it. V. Dr Joun Atex. Smrtu exhibited a Ballan Wrasse (Labrus ber- gylta), caught in October last in Loch Fyne; sent by Captain J. W. P. Orde, of Kilmory Lochgilphead, Argyleshire. It measured about 14 inches in length, and displayed a few green spots on the hinder VOL. Il. U 150 Proceedings of the Royal Physical Society. — part of the dorsal fin, which were now faded. This species was distin- guished by the soft rays of the dorsal fin, measuring twice the length of the twenty (first) spinous ones. The Society had been indebted at various times to Captain Orde for the exhibition of specimens of interest. The ballan wrasse was a rare fish in our Firth, and was found generally on rocky coasts. Dr Smith had seen some large ones last autumn, caught at the rocks beside the Lizard Light in Cornwall. VI. Dr Jonn Atex. Smit exhibited a specimen of a female Gadwall duck, Querquedula strepera, one of our very rare winter visitors. It was shot near Cromarty in the end of January, and was sent to Dr Smith by Mr Muirhead, Queen Street. Dr Smith referred to the great abundance in this neighbourhood of the Brambling, Fringilla montifringilla, and of the Siskin, #’. spenws, during the severe weather of the winter; and also to the multitudes of wood . pigeons, Columba palumbus, which, from stress of weather and starvation, had been driven from the more open, and wooded districts to the neigh- bourhood of our gardens and towns, and had eaten up, with the exception of the leek, all kinds of garden produce. The thanks of the Society were given to the Rey. Mr Bell and Captain Orde for their communications and exhibitions of specimens. Wednesday, March 28, 1860.—Avexanper Bryson, Esq., President, in the chair. William §. Young, Esq., Fillieside House, was elected a member of the Society. The following donations to the library were laid on the table, and thanks voted to the donors :— The Canadian Journal of Industry, Science, and Art, New Series, No. 20, January 1860.. Toronto.—By the Canadian Institute. Proceedings of the Academy of Natural Sciences of Philadelphia, 1858.—From the Academy. The Rocks of Kansas (with description of Permian Fossils). By G. C. Swallow and F. Harvie, St Louis, U.S., 1858. Descriptions of New Fossils from the Coal Measures of Missouri and Kansas. By B. F. Shumard and G. C. Swallow, St Louis, U.S., 1858.—From G. C. Swallow, Esq. Proposed Subscription for a Monument or Memorial to the late Professor Fleming. The Secretary, Dr John Alex. Smith, laid on the table a communication in reference to a proposed subscription for the purpose of erecting a monument to the memory of the late Professor Fleming, one of the fathers of Scottish Natural History, and one of the most zealous promoters and distin- guished presidents of this Society. Dr Smith said he would On the Examination of the Human Pancreas. 151 be glad to receive contributions for this object, and the list of subscribers would be left in the hands of Mr Dawson, 6 York Place. Hugh Miller’s Museum. Dr J. A. Smith stated he might also take this opportunity of informing the Society that the movement begun some time ago to raise money by public subscription, for purchasing the Museum of the late Hugh Miller, had been brought to a successful termination. A committee was appointed, of which he had the honour to be a member; and the result of its labours was that above L.600 had been collected. With this sum, and the addition of the Government grant of L.500, the Museum had been purchased, and was now in the custody of Professor Allman, in the rooms of the University. The communications read were as follows :— I. On the Employment of Transparent Injections in the Examination of the Minute Structure of the Hwman Pancreas. By Wm. Turner, _M_B. (Lond.), Senior Demonstrator of Anatomy, University of Edin- burgh. | The mvestigation of the relations of the minute gland ducts to the ultimate gland follicles in the human pancreas presents considerable difficulties. This is owing, partly, to the great delicacy and transparency of the structures, and partly, be- cause from the close manner in which the minute lobules of the gland are crowded together, it is difficult to obtain a satisfactory view of a single isolated lobule. Thus, the mode of connection of the fine excretory duct of the lobule with the sacculated gland follicles at its extremity cannot clearly be estimated. Moreover, if it is attempted to separate the lobules from each other by tearing them asunder with needles, the relations of the parts become so disturbed, that the examina- tion does not afford any very decided results. For these reasons, it has been customary, in describing the minute structure of this gland, to refer especially to the appearance which it presents in the smaller and more common Rodents, such as the Rat or Mouse. In these animals the pancreas is spread out in a thin arbo- 152 Proceedings of the Royal Physical Society. rescent manner between two layers of peritoneum, so that the different lobules lie mostly on the same plane. Their investi- gation is on this account comparatively easy, even without the aid of any dissection.” Being engaged some months ago in making a series of pre- parations of the human pancreas for the sake of illustrating the structure of this gland to my microscopic class, I suc- ceeded in forcing an injection through the excretory duct into the ultimate follicles of the gland. I have been enabled in this manner to obtain, much more satisfactorily than by any other process, definite views of their relations to each other. The injecting fluid which I used was of the same composition as that recommended by Dr Lionel Beale, and employed by him with such success in his investigations into the minute structure of the liver. It is composed of a mixture of glyce- rine, spirits of wine, and water, in which Prussian blue, ob- tained by precipitation, is suspended. This injection possesses the great advantage of flowing easily when cold along the ducts, and from its great trans- parency, the organ into which it is thrown can be examined by transmitted light, and by high magnifying powers, so that the connections and relations of its component structures can be much more readily traced than in those cases where opaque injections are employed. It is hardly possible, however, to make a complete injection of all the ultimate lobules through- out the pancreas; for in many parts they appear to be so filled with secreting cells, and the fine ducts proceeding from them are, in a similar manner, so blocked up with closely packed epithelium, that the injection cannot flow along them. But this does not throw any obstruction in the way of an exami- nation of those lobules into which the injection has passed; it rather tends to facilitate it, for the outline of the ultimate follicles, distended by the blue fluid, comes out more distinetly, by the contrast which it presents to the paler non-injected portions, It will be frequently found advantageous to examine those lobules, the sacculated follicles of which are only partially * See “ Todd’s Cyclopadia,” article Pancreas. On the Examination of the Human Pancreas. 153 filled by the injection; for in them the general and relative arrangement can be more distinctly seen than in those lobules which are completely distended, as in the latter case, owing to the amount of injection in them, a degree of opacity is pro- duced which renders the outline of many of the follicles some- what indistinct. Most of the sections which I have examined have been made with a Valentin’s knife, and the preparations have been soaked for a short time in glycerine, which facili- tates the investigation of the pancreas, as of many other animal textures, by increasing the transparency. The large excretory duct of the pancreas extends along the centre of the gland from head to tail, and is enclosed on all sides by the large lobules. From it, at frequent intervals, smaller ducts proceed, which pass into these large lobules, and in them divide and subdivide into fine branches, for the ultimate lobules. Of these fine branches some arise at right angles, others at a more or less acute angle, and after a very short course they become connected with the ultimate gland follicles of the lobule to which they belong. Hach duct, as a general rule, preserves the same calibre from the point at which it commences, to that at which it either gives off a branch, or terminates in an ultimate lobule. In some instances the ducts possess dilatations on their walls, which may either be confined to one side, or may exist at corresponding points on both sides. The same mode. of termination of the fine ducts in the ultimate lobules does not appear to exist in all cases, but admits of slight differences. In some instances the duct passes to the base of the lobule, and then from it, as from a centre, the saccular dilatations of the ultimate follicles spring. In others the duct runs for a short distance along the base of the lobule, giving origin in its course to the fol- licles, which are connected to its sides and extremity. In either case the fine membrane forming the wall of the duct is continuous with the membrane constituting the wall of the follicles, so that the cavities of the follicles are continuous with that of the duct. The number of follicles present in an ultimate lobule varies considerably in different specimens. There are also great differences in their shape and size. Some are spheroidal, others laterally elongated, so as to pre- 154 Proceedings of the Royal Physical Society. sent a more or less oval form; others again are more pyriform When distended by injection, they all present convex, smooth, and well-defined outlines. On account of the general shape of the follicles, and the mode in which they are grouped to- gether in the lobule, they resemble in appearance a bunch of grapes, with which they have frequently been compared. The epithelial contents of the follicles are of course com- pletely concealed in the injected portions of the gland; but in those lobules into which the injection has not passed, the shape and general arrangement of the secreting epithelium may be conveniently studied. It frequently happens that, in examining sections of the gland, isolated follicles may be seen, lying perhaps closely together, as if they had originally formed parts of the some lobule, but still separated by slight intervals from each other, having probably become detached from their original connections in the act of making the section. In these isolated follicles the secreting cells may be generally very distinctly seen. They form a closely packed layer, lining the inner surface of the membrane forming the wall of the follicle. Their shape is spheroidal, so that they form a true glandular epithelium. Professor Kolliker in his ‘‘ Microscopic Anatomy,” describes the pancreas as belonging to the compound racemose group of glands, of which the salivary glands and the mucous glands of the mouth may be taken as the type. In his description of the last-named glands, he states that the grape-like appearance of the ultimate follicles is owing to the fine ducts being coiled upon themselves, presenting at intervals numerous simple or compound dilatations or diverticula. He considers the glan- dular vesicles to be nothing more than these dilatations. In my examination of the injected pancreas, | have not succeeded in sufficiently separating from each other the various follicles making up a lobule, so as to state whether the view of Profes- sor Kélliker can be applied to the pancreas. Whether we hold, however, with the more generally accepted doctrine, that these follicles are saccular dilatations at the extremity of the duct, or with Professor Kolliker that they are produced by a coiling of the duct upon itself, the important fact still remains, that the membrane forming the wall of the follicles is connected Notice of Reptilian Fossils, Morayshire. 155 with that forming the wall of the duct, and that the cavity of the one is continuous with that of the other. In this communication I have avoided the use of the term acini, as it has been employed by different observers to express different structures, so that its use is liable to lead to confusion of ideas; some applying the term to express the ultimate lobules of the gland, whilst by others it is used to signify the ultimate follicles of these lobules. II. Notice of Reptilan Fossils, Morayshire. By Wittiam Reto, Esq. The specimens which Mr Rhind exhibited of reptilian remains from the sandstone of Moray were contributed by Patrick Duff, Esq. It is now about a quarter of a century since the late lamented President of this Society, Professor Fleming, first detected an organism in the Old Red Sandstone of Scotland. It was but a minute fragment of a fish scale, yet it had the effect of awakening an interest for, and stimulating a research into, those beds of sandstone which skirt almost the whole of the Scottish shores to the north of the Firth of Forth, and which hitherto had been looked upon as destitute of organic remains. A few years after this dis- covery, Mr Duff began his researches in Morayshire, with an enthusiasm and perseverance which have seldom been equalled. He soon found that the sandstones of Moray teemed with organic remains, as well as these of the opposite shores of Cromarty, which were at the same period under the scrutiny of Mr Hugh Miller. From that time Mr Duff has formed the nucleus round which the researches of other scientific men and the casual discoveries of the workmen in the various quarries have centred, so that a most varied and interesting assortment of specimens have been accumulated. As long as the organisms brought to light par- took of the character, or were supposed to do so, of fishes, no doubts re- mained that the sandstones of Moray, under the several modifications of colour and position, belonged to the Devonian era; but subsequently, when organisms of a higher order made their appearance, assuming the distinct forms of reptiles of various families and sizes, a doubt began to arise whether the fish-bearing and the reptile-producing strata belonged to the same series. This gwestio vewata still prevails; and Mr Rhind, assuming that the decision is still left open, proceeded to exhibit by a section the relative positions of the sandstone beds, in so far as these are open to inspection. The general conformity of the lowest red, the greyish, and the yellow sandstones,—the parallelism of the dip of these three beds of strata, and the superposition of a band of limestone or cornstone com- mencing south of Elgin, and seen with more or less interruption at Links- field, Spynie, and Stotfield, capping and inclosing the whole series, were ee out; while the absence of scales of the distinctive fishes of the evonian era in the particular localities where the reptilian remains have been discovered was also mentioned,— an absence which probably may arise from as yet defective search, considering that the accidental disinter- ment of the reptiles has’ occurred within the short space of a few years, and that another few years may either add the discovery of fish scales, or, if not found, afford a somewhat negative proof of the non-identity of the yellow sandstones with the Devonian. It was also suggested that the appearance of the vast masses of compact sandstone forming the hills 156 Proceedings of the Royal Physical Society. which traverse the lower region of Moray from west to east, indicated a process of accumulation by drifting, rather than that slow and regular deposition which is indicated in the lower red sandstone beds, where con- glomerate, shale, and fine-grained sandstones are alternately super- imposed,—a condition always favourable to the existence of organic remains either of plants or animals; while the drifting process, which carried the land reptiles into the sea, was unfavourable to the preservation of fishes, Lastly, allusion was made to the recent discoveries of vege- table remains of Lepidodendrons, Lycopodiums, and others analogous to those of the coal strata in the true Devonian sandstones of Canada, by Mr Dawson, and of similar fossil plants found in the Caithness slates, by Mr Salter,—all indicative of dry land, and the progress of organic life during the period of the Devonian Sea. III. Contributions to the Fauna of Old Calabar—Mammale. By Anprew Murray. This paper was chiefly occupied with a list and notes relat- ing to the various animals, of which specimens had been sent at different times by the United Presbyterian missionaries stationed at Old Calabar, among which were the following :-— Troglodytes niger—The Chimpanzee. With reference to a specimen of this animal which had been brought away alive by the Rev. Mr Baillie, but which unfortu- nately died on the passage home, Mr Murray remarked, that it had been preserved by Professor Goodsir, in a way which, if it should prove successful, was well worthy of adoption, in cases where the rarity or value of the specimens might justify the expense. The plan was to place it in spirits in a glass tank or coffin as it were, covered with glass hermetically sealed down. This is an enlargement of the plan devised by Goadby for the display of his minute dissections; but as in his little glass boxes, so here, the difficulty to be contended against was leakage. Do what one can leakage seems almost always to occur after a certain lapse of time; but this could be con- quered if by no other means, at all events by soldering the glass together by the blow-pipe ; so that where it is desirable to have recourse to this plan, this difficulty in the manipula- tion need prove no insurmountable obstacle. Mr Murray detailed some anecdotes relating to the indi- vidual in question, which had been communicated to him by Mr Baillie, illustrative of the kind and extent of intellect possessed by it. For example—It was very fond of some sweet- Contributions to the Natural History of Oid Calabar. 157 meats, which were kept in a press or cupboard, but to prevent its getting access to them when not wished, the cupboard was kept locked. On one occasion the key had been forgotten and left lying on the table, the chimpanzee noticed this, secured the key, and when no one was present, proceeded to unlock the door of the cupboard, but being unable to reach the key-hole, drew a chair to the side of it, and getting up on it unlocked the door, and so got access to the desired sweetmeats, an act involving more than one process of that kind of ratiocina- tion which is usually thought the exclusive property of man. Galago Murinus.—(Murr.) In addition to the information formerly given regarding this interesting little animal, Mr Murray had received some additional facts, communicated to him by the Rev. W. C. Thomson, through Dr Hewan. From these it appeared that the little creatures are gregarious, or social rather, travelling in small companies, and inhabiting a common nest; one of which Mr Thomson got a glimpse of. He saw several indivi- duals rush out of it as he passed, and it answered in its situa- tion and description to the account he had received of them, which was, that they were built on suitable forks on trees, with a foundation of clay, and superstructure of dried leaves. Stenops, Potto (%). Two or three specimens of this curious loris have been re- ceived, and the singular structure under the tongue (a develop- ment no doubt of the frenum, but exceedingly like a bird’s tongue), as well as the rete mirabile of the arteries of the limbs, was well shown in Mr Murray’s preparations. The sublingual plate is also found in the Galago, although less developed. Mephitis—Sub Genus Rhabdogale (sp. ¢) Mr Oliphant has received a specimen of an animal which Dr Cleland, to whom he has presented it, refers to this genus, but he has not yet satisfied himself as to the species. Anahyster—(Nov. Genus of Otters.)—Calabaricus Murr. If a difference in the dentition be, as is usually allowed, VOU. IL x 158 Proceedings of the Royal Physical Society. sufficient to warrant the separation of the animal possessing it into distinct genus, then the present species is entitled to that place. , It is as yet only known by the skull, which was sent by Mr Thomson to Mr Murray. Its dentition differs from that of our common otter, Lutra vulgaris, in having one fewer pre- molar in the upper jaw. Mr Murray had submitted it to Professor Owen, who believes it to be nondescript, and that it approaches Enhydra of Fleming (Phil. of Zool.) in having the first pre-molar suppressed above, but that the latter has also the first pre-molar suppressed below. It has, however, six in- cisors in the under jaw, while the sea otter, Enhydra, has only four in the adult state, which the specimen in question has. It would appear to form an intermediate link between the true otter and the sea otter; and its habitat in an estuary may therefore perhaps be thought suitable enough; and it was in reference to this that Mr Murray proposed the above generic name for it—Anahyster (belonging to an estuary). Phacocherus, (sp. ¢) Dr Cleland has received a young individual of this genus ; there does not appear to be any essential difference between it and the Cape of Good Hope and Mozambique species, PA. MAthiopicus. But the individual is too young to allow an opinion to be given with confidence. Hippopotamus amphibius.—Lin. From the information received from the missionaries, there is good reason to believe that the hippopotamus is found in the Old Calabar River further up than the mission stations ; but no specimens, or portions of specimens, have yet been sent home. It may be a question whether there are more than one species of hippopotamus. It is generally supposed there is only one, but it has been found in rivers so widely, and apparently impassably, separated, that it would be noways surprising if more than one species shall yet be determined. Manatus Senegalensis.—Desmar. Several skulls of this most interesting animal have now found their way into this country from our Old Calabar friends. Contributions to the Natural History of Old Calabar. 159 Delphinus (sp. ?) Mr Oliphant has received the head of a species of dolphin. Rhinomus soricoides.—(Nov. Gen., Nov. Sp. ?)—Murr. This is a very puzzling little animal. It has the appear- ance of a shrew, with its long snout, but is in reality a mouse. Its dentition is somewhat peculiar, the incisors having a pro- cess behind them, like the cusp of a carnivorous tooth. It is pentadactylous both before and behind, and as all the allied genera and species have four fingers before and five behind, Mr Murray considered that there was no alternative but to make a new genus for its reception, and in reference to its long snout, he proposed the above name for it. It is mouse-coloured, with ear and tail. IV. On the Chalk Flints of the Island of Stroma, and Vicinity of John o’ Groat’s, in the County of Caithness. By Cuartes W. Pracu, Esq., Wick. Notices of the occurrence of chalk flints in the boulder clay of Caithness have from time to time appeared in various pub- lications. Many of the localities I have been able to verify, and to add new ones as well. Knowing the interest attaching to their presence so far north, and not being able to find any account in any work that I have access to of their having been found on the surface of the land, the intent of this communication is to show that I have been fortunate enough to make that discovery. On the Sth instant I had to go to the island of Stroma on business. When walking across the north side of it, I was somewhat surprised to find chalk flints in considerable abun- dance on the surface there. This part of the island is stripped of its turfy covering, and is consequently favourable for obser- vation. Wherever I went, even on ploughed land, and where the short vegetation was not too thick, I met with the fiints. They vary in size from that of a boy’s marble to eight or ten inches over, and are generally of a light colour. Some con- tain sponges; in most of them spicula may be seen in thin splinters, which I chipped off, and in one piece I observed those hollow and branched spicula with the small hall-like 160 Proceedings of the Royal Physical Society. masses peculiar to the genus Geodia—all beautiful objects for the microscope. A large one, of several pounds weight, con- tained pieces of shells, a fragment of an echinus, as well as sponge. The flints are slightly waterworn, and many of them vovered with lichens. With them are blocks of granite and gneiss, some of large size, smaller pieces of hornblende, reddish conglomerate, quartz, &c., &c.; in short, the usual heterogeneous collection of travelled stones found in these parts. One kind of rock deserves special notice. It is that peculiar quartz rock with the large annelide-tubes, so abun- dant in the highlands of Assynt, Durness, &c., in Sutherland- shire. There is no mistaking it, its character is so obvious. For its history see Sir Roderick Murchison’s last edition of “ Siluria.” I would here remark that the north end and west side of the small island of Stroma have never been under cul- tivation, being too much exposed to the blighting winds and burning spray which, when the storm is raging, pass over these parts; and, although some of the cliffs are more than 100 feet in height, the sea-water at times rushes in streams thence to the opposite side of the island. I was told by James Simpson, an intelligent fisherman, that he had often heard his grandmother say, that in her time the supply of peat for fuel for the islanders was cut there, and that the moss was then three feet in depth. All has been long since taken away, and the scanty vegetation and mould which subsequently formed has also been pared off by the flaughtering spade, for divots either for the covering of houses, &c., or “backing” for fires, and thus the collection of stones on this now truly sterile spot is well exposed, and washed and bleached by the storms of winter, and the more genial showers and sun of summer. These stranger stones, although now mingled with others “native and to the manner born,” show marks which tell of scratching and polishing, move- ment and rough usage, after having been torn from their native mountains and hills; and it is interesting to mquire into their age, mode of transportation, and deposition there. Deposited with the peat they could not be, they date beyond that time. The boulder clay period suggests itself, and I think correctly; for although but very slight traces of the Chalk Flints of the Island of Stroma. | 161 clay itself are to be seen on the island now, there are evidences of its former presence. But probably it was never of great depth, there being no deep valleys or sheltered coves to retain it on this small spot of land. Add to this the peculiar form of the island, sloping towards the sea on both sides and ends, much like the hipped low roof of a house—in some places de- scending quite to the level of the beach. Thus, when rising on its return voyage, after being submerged and covered with the boulder clay, as it slowly lifted up its head from the agi- tated waters of the turbulent Pentland, lashed no doubt then as now by the waves of the restless ‘‘ Swelkie”* and ‘“‘ Bores’ t the softer and lighter portions of the clay were washed out, and passed down the sloping sides in muddy streams, and were swept away by the furious tides which ran past, the more ponderous and weighty materials being left behind. Whence the flints came I do not intend to speculate, but merely men- tion that many writers upon those found in other parts of Scotland point to Denmark and Sweden. My stay on the island on this occasion was very short, but this is of little consequence, as my son William has since made a thorough inspection of the whole island, and finds flints all over. The next morning I passed over the Pentland in the midst of a storm, with rain and snow, and whilst my horse was feed- ing and being got ready for my return home, I took the oppor- tunity of looking round John o’ Groat’s, and there chalk flints were to be seen, but not in that abundance as at Stroma. I regretted that I could not extend my search further. As the subject is worthy of attention, I hope to pursue my investi- gations as opportunities offer, for I believe that these flints are wide spread, not only zm the boulder clays of Caithness, but on the surface also. I hope by thus giving publicity to the discovery that the attention of others may be called to the subject. * “ Swelkie ” is a whirlpool off the north end of the island, which at times is very dangerous. A boat, with seven men in it, was drawn in, and all were sucked down and lost, + “Bores.” For instance, off Duncansbay Head the waters rise up all on sudden at certain times of the tide into high waves. It is then dangerous for vessels and boats to pass through—almost certain destruction to boats. 162 Proceedings of the Royal Physical Society. V. Note of the Onuphis tubicola found near Wick. By Coarues W. Pracu, Esq. I am not aware whether the Onuphis tubicola has been noticed as occurring in Scotland. It has been found in Ire- land, and I got it rather plentiful in Cornwall. It forms a quill-like tube, which it fixes in the sand. I got one the be- ginning of this month from a fishing-boat belonging to this place. The animal was not in the tube, and although the tube is injured, there is sufficient left to identify it. The animal is described and figured in the ‘‘ Annals and Magazine of Natural History” (vol. xvi. page 6, 1845), in a paper by Dr George Johnston of Berwick, fifteen yearsago. I supplied him with specimens, and when [ lived in Cornwall, I kept some alive for more than a year.* Wednesday 25th April 1860 — Wixttam Ruinp, Esq., President, in the Chair. The following donations to the library were laid on the table, and thanks voted to the donors :—Observations on the Free-Labour Cotton of Honduras, &c. With coloured plate of the plant. By Mr James Banks, Prestonpans.—F rom the author. Lecture on the Geology of the Province of Nelson, New Zealand. By Dr F. Hochstetter, of the Austrian Scientific Novara Expedition.—From the Colonial Secretary, Auckland, New Zealand. Memoir on the Extinct Sloth Tribe of North America. By Joseph Leidy, M.D., Professor of Anatomy, University of Pennsylania.—From the author. Report of the Board of Agriculture of the State of Ohio, for the year 1856, Vol. Il. From the Ohio State Agricultural Society, through the Smithsonian Institution, U.S.A. Mr GzuorcEe LoGaN made some remarks on the Lord Advo- cate’s proposed New Herring Fishery Bill; and moved that the subject be remitted to the Committee on Marine Zoology, with powers to memorialize the Lord Advocate, or other parties, as may seem to it best, in order that some exemption might be made for the trawl or seine nets, when used solely for scientific purposes, from the restrictions and prohibitions pro- posed in the bill. After some remarks by Mr J. M. Mitchell, the motion was unanimously agreed to. * Since this paper was read I have found a much finer and better preserved one at Wick. Obscure Markings upon an Old Red Sandstone. 163 The communications read were as follows :— I. On some Obscure Markings upon an Old Red Sandstone Slab at Mill of Ash, near Dunblane. By the Rev. Ropert Honter, late of Nagpore. The large slab, half of which has been laid upon the table, is a micaceous flagstone, from a fissile layer, a few inches thick, with a more compact sandstone or gritstone both above and below it, and at no great distance from a trappean effusion. It would seem to belong to the lowest or Cephalaspis zone of the Old Red Sandstone. The Rev. Walter Smith, of Free Roxburgh Church, in this city, when with me last August, in a quarry at Mill of Ash, observed some of the markings on a projecting ledge of stone, and that day and the next he and I laid the rock bare for a space of six feet in length by five in breadth, and came on about 150 of the markings. More recently, the slab was raised, and the Rev. Mr Paterson, of Dunblane, kindly consented to take the trouble of having it packed and forwarded to Edinburgh. The impressions are of two sizes. Their form is elliptical, with a raised border, one side being in much bolder relief than the other; and it is im- portant to note that the raised margins all correspond in posi- tion with each other. Within, and separated from the elevated border by a channel, there 1s occasionally a raised central space, with a tendency to longitudinal furrowing. The longer axes of the ellipses all point nearly in the same direction. They are arranged with some regularity, though at times two are in such close contact as to form an eight figure, and, more rarely, a couple of these eights uniting have constituted a rude cross. Mr Page possesses some curious impressions from Ardoch, a few miles north of Mill of Ash, but judging from some figures he hastily drew for comparison, they are of forms entirely different from those now described. It is difficult to say whether the markings are of organic or inorganic origin. The hypothesis on the subject which most naturally arises, and being expelled has a tendency to return, is, that they are footprints of some animal. There are, however, very formidable objections to this view. Nor can they well have been formed by pebbles, or by the impressions of ganoid scales, for sub- 164 Proceedings of the Royal Physical Society. stances generally so indestructible would surely have left some fragment of themselves, more or less, which they have not done. Most of the markings are formed chiefly of micaceous lamina, like the rest of the rock, and in the two or three instances where the presence of a foreign body can be detected, it seems to be of a concretionary nature. Mr Robert Loudon Irvine, of Hurlet Chemical Works, who kindly consented to analyse one of these foreign bodies sufficiently to determine its chief ingredients, thus reports on it. “ It consists mainly of car- bonate of lime, with iron existing mostly in the state of pro- toxide and alumina. There are neither sulphates nor sul- phurets present. The black colour is probably due to the presence of carbonate of protoxide of iron.” Sir Roderick Murchison and the Rev. Mr Mitchell of Craig have, indepen- dently of each other, pointed out a remote resemblance in the impressions to what is in Forfarshire called “the Kelpie’s foot;” but neither of those gentlemen regards the pheno- mena as identical. At the suggestion of Sir Roderick, the matter has been referred to Professor Phillips of Oxford, who has had much experience of obscure markings like the present. He has already received specimens of the impressions; and it is probable that one of the larger pieces of the slab will have to go to England for thorough examination there. IL. Notice of Various Ornithic Fossil Bones from New Zealand. By James M‘Bain, M.D., R.N. The bones which I have now the pleasure of exhibiting to the Royal Physical Society were found ina limestone cave in the northern island of New Zealand, and were given to me for examination by Mr D. F. Paterson, of Kerr Street, near Stock- bridge, in this city. In a letter received from Mr Paterson, he states, that ‘‘ the large bones were sent home by Dr A..S: Thomson, of the 58th regiment, to his father, James Thom- son, Esq. of Glendowan, asrare bones. Theskull was unknown to Dr Thomson, and differed from all the Moa’s skulls that he had seen ; at the same time, he thinks it belongs to the genus Dinornis. The bones of the little bird, found along with the others, were altogether unknown. |The cave in which the bones were found is on the western side of the North Island, near Ornithic Fossil Bones from New Zealand. 165 ‘Rotomarrama, at the bottom of a hill. The entrance is twenty- five feet high and eighteen feet broad, and its mouth is con- cealed with shrubs. The cave is about a mile in length, run- ning under the hill, and the bones are found in all parts; some under soft sand and limestone, others covered with a crust of limestone only. Glowworms were seen in the cave, but ne plants. This is called the Cave of the Spirit. Itis held in great terror by the natives, and some now alive say they have seen a living moa, that it lived in the cave, and used to stand on one foot, so that it is just possible that the moa may still be alive in some of the wildest and most secluded parts of the island. Dr Thomson gave some bones to Governor Gray several years ago, and is not quite sure that the governor did not give them to Professor Owen. ‘There is another limestone cave, called the Cave of the Moa: this is of less extent than the former, and is about seventeen miles from Honipaka. The animals resorted to the caves to die. The natives used the larger bones to make fish-hooks, the skulls to hold their tatoo- ing powder, and for other purposes; thus, few of the leg-bones or skulls can now be got.” In November 1839, Professor Owen read a communication before the Zoological Society of London, in which he described a portion of the shaft of a femur, six inches in length, and five and a half inches in circumference, which had been brought from New Zealand. After a careful and critical examination, that distinguished paleontologist pronounced the fragment of bone to belong to a large bird, allied to the ostrich; and staked his anatomical reputation, that species of birds heavier and more sluggish than the ostrich would be discovered to have existed in New Zealand. In less than four years after- wards, this inference was happily confirmed from numerous bones transmitted to this country, which were found in the bed and banks of fresh water rivers at Poverty Bay, buried only at a little depth in the mud. From these fragments of bone, Professor Owen was enabled to establish three genera of extinet birds, which he named Dinornis, Palapteryx, and Ap- tornis. : In 1847, the late Dr Gideon Mantell received from his son. Mr Walter Mantell, no less than eight hundred specimens of VOL. IT. ¥ 166 Proceedings of the Royal Physical Society. fossil bones, which were obtained from North Island, found in a bed of sand called the “ Waingongora Bone-bed.” In 1850, another collection of about five hundred specimens of fossil bones were sent home by Mr Walter Mantell, two hundred of which were from the same locality as the former, whilst the remainder were obtained from Waikouaiti, on the eastern coast of the Middle Island. This latter bone-bed is ‘covered by a layer of sand, and appears to have been an ancient swamp or moss, in which the New Zealand flax (Phormium tenax) once flourished. A pair of perfect tarso-metatarsal bones were found standing erect in this bed, with all the toe- bones attached, which are now known to form part of the skeleton of the species that has received the name of “ Dinor- nis robustus.” From the fragments of ornithic fossil bones transmitted at various times from New Zealand, Professor Owen has suc- ceeded in establishing thirteen species of extinct birds, differ- ing in size from the great Bustard to that of the Ostrich, and even much larger. These species have been referred to two distinct genera, the Dinornis proper, in which there is no im- pression for a hind toe on the tarso-metatarsal bones ; and to the genus Palapteryx, in which the impression for the fourth toe has a similar position in the tarso-metatarsal bones as in the existing Apteryx. The general anatomical characters as- signed by Professor Owen to the skull in this peculiar family of birds are “‘a broad and low supraoccipital region, sloping from below upwards; a flat parietal surface continued directly forwards into a broad downward sloping frontal region ; wide and deep temporal fosse, small orbital cavities, and large olfactory chambers; the vertical plane of the foramen mag- num, with the single occipital condyle projecting directly backwards. No ‘existing bird,’ he says, ‘presents this peculiarity, which somewhat resembles that of Chelonian rep- tiles.’” ag The large bones, which I shall now briefly describe, are nine in number, consisting of the greater portion of a cranium, one cervical, one dorsal, and nine anchylosed sacral vertebra, a part of a rib, an ungual and a corresponding penultimate phalanx, a large elongated bone, which I assume to be a Ornithic Fossil Bones from New Zealand. 167 scapula, and an interesting little oval bone, doubtless a tracheal ring. The bones are of a yellowish cream colour, light and spongy from the loss of animal matter, but all in a good state of preservation. There are none of the mandibular or facial bones attached to the cranium, a part of the pre- sphenoid, and the whole of the left postorbital process of the frontal bone is broken off, and there is likewise a slight ex- foliation at the supraoccipital and paroccipital ridges, ex- posing the remarkably cancellous structure of the cranium. In the skull described by Professor Owen as typical of the genus Dinornis, and referred to D. casuarinus, it is stated, * that the cranial peculiarities of the great extinct wingless birds are exaggerated in the typical genus, especially the downward development and abrupt descent of the basioccipital and basisphenoid, and the forward inclination of the occipital surface, which makes the occipital condyle the centre of the hinder surface of the skull, and places the occipital foramen in the upper half. That the occipital condyle is supported on a short thick peduncle, and impressed by a subcentrie pit, whilst the longest diameter of the foramen magnum is in the vertical direction.” These characters do not correspond with the skull found in the limestone cave near Rotomarrama. The cranial peculiarities of the genus Palapteryx are said to be “‘ the minor development of the basioccipital and basi- sphenoid downwards in comparison with that in Dinornis proper; a higher position of the precondyloid foramina, and their separation from the carotid canals, the square platform of the basisphenoid, the less development of the paroccipitals, and great development of the mastoids and olfactory cham- bers, and especially in the large and single oblong depression beneath the mastoid, for the single superior condyle of the tympanic bone.” In his description of the skull of Palapterya gerenoides, in the collection of Mr Mantell, Professor Owen says, “it agrees with those assigned to Palapteryx in all the characters by which they differ from the cranium assumed to belong to Dinornis proper.” The general construction, measurements, and details of the skull of P. geranoides, agree in several particulars with the Rotomarrama cranium; and in the remarks which I have to 168 Proceedings of the Royal Physical Society. make upon it, I shall adopt the comparisons made by Professor Owen on the typical skull of the genus Palapteryx. The breadth across the mastoid processes in the mutilated cranium from Rotomarrama is 27’th inches ; the length of the cranium, measured from the upper part of the foramen magnum to the anterior extremity of the frontal bone, is 3,3,th inches; the breadth across the postorbital processes is 27th inches; the breadth across the temporal fosse is 1,%;ths of an inch. The vertical diameter, from the supraoccipital ridge to the basi- sphenoid, is 1,7;ths of an inch. The transverse diameter of the occipital foramen is nearly ths of an inch. The breadth across the paroecipitals is 24 inches. The sutures of the skull are entirely obliterated ; and from the well marked muscular impressions and rugose surface, there is no doubt that it be- longed to an old bird. The occipital foramen is subeireular, and broadest transversely; the descending basioccipital is impressed by a shallow pit, divided by a slight median ridge, and bounded below by the straight posterior border of the basisphenoid platform, the outer angles of which are large round tuberosities. The precondyloid foramina are situated at the upper and. back part of the basisphenoidal protuber- ances, midway between the outer edge of the paroceipital ridge and foramen magnum, and raised to a level with the lower border of the occipital condyle. The precondyloid foramina pass obliquely upwards and inwards into the cranium, and there are two small pits at the inner and upper edge, nearer the occipital condyle. The paroccipital ridges, partly broken in this specimen, are of a semilunar form, and separated by a notch from the basisphenoidal protuberances. The canal for the carotid artery is seen grooving the sides of the sphenoidal platform, winding round the outer part of the base of the sphenoidal protuberances, penetrating the basisphenoid, just in front of the lower edge of the paroccipital ridges, and entering the cranium by the aperture common to the precondyloid foramina internally. The occipital region is divided into two parts by a broad median vertical ridge, with two strongly marked depressions on each side ; but the subdivision, “ slightly indicated by the bending down of the supraoccipital ridge,” in Professor Owen’s description of P. gerenoides, is not Ornithic Fossil Bones from New Zealand. 169 observable. The anterior angles of the basisphenoidal platform are formed by short, thick, outstanding pterygoid processes, with flat oblique articular surfaces for the abutment of the true pterygoids. The presphenoidal rostrum passes forwards from the middle of the basisphenoidal platform to the posterior wall of the nasal chambers, and there is a well marked de- pression on each side, beneath the optic holes, running back- wards at the outside of the pterygoid processes. The foramen ovale is situated in the middle of the alisphenoid, halfway between the pterygoid process and glenoid cavity, with its long axis in a vertical direction. The mastoid process is half an inch in length, compressed laterally, and extends obliquely from without inwards and backwards, with a large single oblong glenoid cavity at the inner side. There is a deep pit between the inner and back part of the glenoid cavity and posterior root of the mastoid process. The deep temporal fossee lie between the mastoid and postorbital processes, the lower points of the latter being on a level with the former. The distance between the postorbital and antorbital process is Linch and ths. There is a small oval pit beneath the antorbital processes, the long axis of which runs obliquely from before backwards and inwards. The olfactory chambers reach backwards nearly three-fourths of the length of the orbital cavities. There are two large broad anterior hori- zontal divisions, and two narrow posterior ventrical olfactory chambers, separated by a slight lateral inflexion of bone at the posterior third of the chambers, and not by a “ transverse ridge,” as in P. geranoides. The anterior chambers are partly roofed over by the prefrontals, wedged in between the anterior extremity of the frontal bones, but principally by the frontals. The posterior divisions of the olfactory chambers are chiefly formed by the orbitosphenoid, ethmoid, and frontal bones. The olfactory foramina and radiating grooves are re- markably distinct, especially at the back part of the anterior larger division of the olfactory chambers. There is a mutilated cranium of a Palapteryx, which was sent to Professor Owen by the Rev. W. Cotton, from the North Island of New Zealand, described and figured in the Third Volume of the “ Trans. of the Zool. Soc.,” p. 360 (PI. 170 Proceedings of the Royal Physical Society. lv., figs. 4 and 5), without any specific name assigned to it, which is closely allied to, if it be not identical with, the Roto- marrama cranium. It is said to be ‘* equal in size to that of Dinornis casuarinus, and, from the presence of the left post- orbital process, to furnish another mark of difference from the cranial structure of Dinornis proper—namely, the non- union of the postfrontal with the mastoid.” Again, he says, “ The olfactory chambers are broader behind than P. gera- noides, and had not the transverse ridge: the frontals broader and flatter between the antorbital processes: the temporal de- pressions are relatively larger, and are traversed by a subver- tical ridge—differences which indicate the specific distinction of the birds to which these nearly equal-sized crania belonged.” The neural canal in the cervical, dorsal, and sacral vertebre corresponds in size with the foramen magnum in the cranium found along with these bones, so that there can be little doubt that these specimens all belong to one individual. The body of the cervical vertebra is three inches in length ; and the transverse diameter of its anterior and posterior arti- culating surfaces measures exactly two inches. From the rudimental form of the spinous process above, and the con- dition of the heemapophysis below, compared with those in the emeu, this appears to be one of the posterior cervical vertebre, where the spinous process is least developed—probably the fifteenth or sixteenth reckoning backwards. The body of the dorsal vertebra is an inch and a half in length, the transverse diameter at the anterior articulating surface is two inches, and that of the posterior articulating surface an inch and ,%;ths. The costal depression is an inch in length, and half an inch from side to side at the middle and broadest part, situated at the upper and fore part of the body of the vertebra. ‘There is a smaller articulating surface for the tubercle of the rib at the under and back part of the transverse protuberance. The height from the base of the body posteriorly to the tip of the spinous process is five inches. There is a large pneumatic foramen at the base of each trans- verse protuberance, which almost penetrates into the neural canal, the intervening space being translucent. The shortness of the body of the seventh dorsal vertebra in the skeleton of Ornithic Fossil Bones from New Zealand. W71 the emeu, and the length of the spinous process, with its in- clination forwards, where it abuts against the compressed iliac bones, render it probable that this vertebra had a similar posi- tion in the skeleton to which it belonged. The length of the nine anchylosed sacral vertebree 1s four inches; the height of the anterior sacral vertebra, measured from the base to the upper part of the coalesced spinous ridge, is three inches. The bodies of the first two sacral vertebre are partly separate, the rest are completely anchylosed. The first five sacral vertebree are furnished with upper and lower transverse processes. The last four are destitute of a lower transverse process. ‘There is a distinct foramen for the exit of the sensory and motor nerves, as in other birds; the ostrich is the only exception to this rule with which Professor Owen is acquainted. The broken portion of a rib measures 33 inches, and 1,8,th inch transversely, at the broadest part. From analogy with those in the skeleton of the emeu, it appears to have been broken off below the head and tubercle of the third or fourth rib on the right side. The two pha- langeal bones are each nearly two inches in length, some- what compressed laterally, and rounded above. ‘There is a longitudinal groove at each side of the ungual phalanx, and a well marked impression at each side of the anterior articulat- ing surface of the penultimate phalanx. The phalangeal bones are double the size of those of the middle toe in the skeleton of the emeu, but less than those in the ostrich. The bone, which I assume to be a scapula, is 9 inches in length, with a circumference of 63 inches at the articulating extre- mity, where it was incrusted with a layer of calcareous sta- lagmite, characteristic of limestone-cave specimens. The cir- cumference at the middle is 3 inches, and 1;5th inch at the free end. The surface of the bone is marked with oblique longitudinal striz, decussating in a somewhat irregular manner from its posterior to its anterior extremity. There are two dis- tinct impressions at the larger extremity, which may corre- spond to articulating surfaces for a double condyle of the humerus, and a broad transverse impression for the articula- tion of the caracoid in front. This is an interesting addition to the remains of these extinct birds, as there is no scapula 172 Proceedings of the Royal Physical Society. described by Professor Owen in his ‘“‘ Memoirs on the Di- nornis.”* The small oval bone found along with the other bones is evidently a tracheal ring; it measures ;8,ths of an inch in length, by 7%,ths of an inch in breadth, and is about roth of an inch in depth. A portion of a vertebra, which has been deprived of its calcareous matter by dilute acid, would seem to prove, by the large amount of residual organic matter, that these fossil bones are probably of recent origin. | It is to be hoped that this interesting collection will ulti- mately assist in the construction of one of the species of Pa- lapteryx, indicated by Professor Owen from the examination of detached crania, or founded upon the proportions and ana- tomical differences of other separate parts, or single bones of the skeleton. III. Notice of the “ Anawantrz0” of Old Calabar, Africa; an Animal belonging to the Famity Lemurina; and apparently to the Genus Perodicticus, of Bennett. By Joun ALExanpDER Smitu, M.D. The interesting little animal (now exhibited) was given to me by Mr William Oliphant, who received it some time ago from the Rev. Alexander Robb, one of the U. P. missionaries at Old Calabar. The following extract from a letter, dated Old Calabar, Ist December 1859, gives some details concern- ing it:—‘‘I was at Creek Town yesterday, and received from ‘King Eyo Honesty’ a small bush animal; or, as the Krumen call it, ‘bush meat,’ which I brought with me to give to Mr Thomson, who is with us for a day or two, as he takes a great interest in these matters. He, however, advised me to bottle the animal, and send it to you myself; which, therefore, I now do with pleasure. We have put it up so that it ought to reach you in safety. It is in a stoppered bottle, well sealed, and the bottle is put up in a small tin box wrapped up in our native grass cloth. It seems to be a lori, or Stenops tardi- gradus. The Calabar people call it Angwantibo (Angwan means a farm), but we do not know the etymology of the second %* This bone was afterwards compared with the skeletons of Apteryx and Pinornis in the British Museum, and found to be a left fibula. On the Angwantibo of Old Calabar. 173 part of the word, and cannot say whether it arose from any habit peculiar to the animal. It lives in trees; but, being nocturnal, the people know exceedingly little about it. They cannot tell what it eats. A lad whom I asked said that he lived in the house, and zé lived in the bush; how, then, could he know anything about it? My Krumen also recognised it as a countryman of theirs. They consider the. one sent as a young one; and say that in their country it grows to the size of a common puss. Probably theirs is a different animal, but I cannot tell. They call it Dwdn, and say that it lays down the law to the other beasts, forbidding them to eat the young frudt when it begins to form on the trees. If the monkey trans- gress, the Dwdn seizes him, and holds him there till he dies,— yea, the monkey rots in his grasp. They say that they are shot together thus. Ifthe monkey gets the shot, the Dwdan holds on ; if the Dwain gets the shot, they fall together. The Krumen say that the Dwdn eats fruit. This is all we know about it at present ; and their (the Krumen’s) account seems somewhat fabulous. One of the legs of this specimen is broken. I will send it by the mail that takes this to your address.—I am, &c., ALEXANDER Robs. « P.S.—Since writing the above, I have met a youth who professes to know about the Angwantibo. He says it sleeps by day, and eats at night; and that, when full grown, it is as big as an old cat, and that it eats fruit.” In a subsequent letter from Mr Robb, dated 28th February, 1860, he says :—‘ I trust you received the Tardigradus sent a few months ago. Another specimen which I procured I handed to Mr Thomson, who, I believe, sent it to Mr Murray.” I have also received from the Rev. H. M. Waddell the fol- lowing notice, which he had put down in his note-book as descriptive of the “ Angwdantibo :—An animal of the sloth kind, lives in trees, hangs on the branches, and eats fruit. Rather larger, when full grown, than a large cat. Longish snout, short ears, each foot three long crooked toes and claws, with a thumb similarly shaped. No tail. Dun colour; cannot walk on the ground. When set down, crawls a little, falls over, and rolls itself up in a ball. Inoffensive.” VOL. I. z 174 Proceedings of the Royal Physical Society. The animal belongs to the Famity of the Lemurs, LEMURINA s. Prosimtt, and to the first division of the family which is distinguished by Van der Hoeven in his valuable ‘‘ Handbook of Zoology” (translated by the Rev. W. Clark, M.D., London, 1858), as follows :— PHALANX 1. Nail of the Index alone of the soles incurved, subulate. Upper incisor teeth four, in pairs. A. With tarsus not elongate. Under this great subdivision, it belongs to the Genus Srenops, Illig. (genera Loris and Nycticebus, Geoff.) es teeth 4 canines = molars — Ears short, rounded. ILyes large, approximate. Index of hand short, not longer than pollex. Tail short, or none. Van der Hoeven subdivides the Genus Stenops into the three following sections :— (a) Tail short. Index of hand very short, resembling an unarmed tubercle. (Perodicticus, Bennett.) (Sp.) Stenops potto, Lemur poito, Gm., Nycticebus potto, Geoffr., Perodicticus Geofroyi, Benn. Gold Coast of Guinea. Potto, Bosman. (b) Tail very short (Nycticebus, Geoffr). (Sp.) Stenops tardigradus, Auct., Lemur tardigradus, L. Bengal, Siam, Sumatra, Borneo. Stenops javanicus, nob., Nycticebus javanicus, Geoftr. (c) Tail, none (Loris, Geoffr. Body slender; eyes very large, almost contiguous. Nose acute, sub-ascending), (Sp.) Stenops gracilis, Loris gracilis, Geoffr., Lemur tardigradus, L. Ceylon. The animal, now exhibited, belongs apparently to the first of these subdivisions (a.); although, with reference to the first character of this subdivision—that taken from the length of the tail—it agrees better with, and would therefore seem more naturally to come under, the second subdivision (6); the dis- tinguishing and peculiar characteristic, however, of the sub- division (a) seems to be the undeveloped index finger, and with this my specimen exactly corresponds. The length of the tail would appear, therefore, to be rather doubtful as a distinctive On the Angwantibo of Old Calabar. 175 character ; at least, this Angwdntibo seems to be somewhat intermediate in its characters between the first two subdivi- sions of the genus Stenops as given by Van der Hoeven, viz. —(a) Tail short ; index of hand very short, resembling an unarmed tubercle ; and—(b) Tail very short. The Ang- wantibo having the index of hand very short, resembling an unarmed tubercle ; and also, the tail very short. To include this animal, the first character of section (a) would require to be altered to—tail short, or very short ; index of hand very short, &c. It seems to me, indeed, from the discovery of this Angwéantibo (assuming it to be a new species), that the greater or less length of the tail is not sufficiently distinctive to allow any characters taken simply from it to be used for the division into sections of the comprehensive genus Stenops of Van der Hoeven. The generic character which Van der Hoeven gives of the GENusS Stenops—index of hand short, not longer than pollex, in the sections (b) and (e), or the equivalent GENERA Nyctice- bus, Geoff., and Loris, Geoff.—from the examination I have been able to make of these animals, appears to be due to the smaller relative size of the metacarpal bone, and the phalanges of the index finger, which are THREE in number, as in all the other fingers (eacept the thumb). In the Potto, however, and this Angwantibo (as will be afterwards described), which fall under his section (a), and the GENUS Perodicticus, Benn, the character of index of hand very short, resembling an unarmed tubercle, is due, not only to the small relative size of the bones of that finger, but also to the presence of only TWO very small phalanges (the same number as in the thumb), the other fingers having three. This anatomical difference forms a good distinction or character between section (a), the Genus Perodicticus, Benn., and the other Genera, which Van der Hoeven has also included in his great Genus Stenops. The only species noticed by Van der Hoeven under sec- tion (a) of his genus Stenops, and, as far as I am aware, the only one known, is the Stenops potto or Perodicticus Geofroyi of Bennett, and it, like this Angwadntibo, is a native of Africa; the other described Genera, or species of Van der 176 Proceedings of the Royal Physical Society. Hoeven’s Genus Stenops, are inhabitants of Asia, the East Indies, &c. Wan der Hoeven, in his description of this species, the Stenops potto or Aposou, says—“ The Aposo or Aposou of the negroes of the Gold Coast of Guinea is a noc- turnal animal, which sleeps on trees and lives on fruits. The Spinous processes of the last five cervical and of the first two dorsal vertebre are long, and pierce through the hairy in- tegument of the back, with a weak, horny covering. Professor Halbertsma first drew my attention to this peculiarity, which I have observed in two specimens.” On referring to the description of this same species (the Potto), placed under the Genus Perodiclicus, and named P. Geoffroyi, by Mr E. T. Bennett, which is published in the “ Proceedings of the Committee of Science of the Zoo- logical Society of London,” for 26th July 1831 (Part I., 1830-81). I find the animal now exhibited agrees with the general characters given there of the Genus (correcting the mistake of considering the projecting teeth in the front of the lower jaw as being all incisors, instead of both inci- sors and canines, according to the present view; and there- fore the incisors only four in number, and not six, as Mr Bennett described them). To which I would add, as addi- tional characters of the Genus Perodicticus—tail short, or very short; index of hand very short, resembling an un- armed tubercle—supporied by small metacarpal bone, and only TWO small phalanges. The Angwéntibo seems to differ, however, from the details given of the species which he describes,—the measurements of the Poito, or P. Geofroyi, given by Bennett, being, “length of head 2 inches and ths, of the body 6 inches; of the tail 1 inch ,&ths, or, including the hair, 2 inches 3% ths ;”? whereas, in my specimen, the whole length, from point of muzzle to extremity of tail, is about 103 inches; the tail being only } of an inch in length, or, including the hair, which is about + of an inch long, only $ an inch. The animal described by Bennett was immature, its dentition not being perfect; in the one now exhibited, the dentition is perfect. There seems to be other slight dif- ferences between the Potto and the Angwdntibo, in the colour of the hair as well as in the relative size or propor- On the Angwantibo of Old Calabar. 177 tions of the body and limbs, which I shall afterwards notice in describing this specimen; and while at present unable to procure various works for reference, or a specimen of the Potto itself for examination, and therefore in want of more information on the subject, I am inclined to consider this specimen of the Angweantibo as being a mature individual, and probably forming another species of the same genus, and one that, so far as I am aware, has not before been described, I therefore, from the locality where it was found, give it pro- visionally the name of the Stenops, or Perodicticus Cala- barensis. The Potto, or Perodicticus Geofroyi,isfound at Sierra Leone, a region of the African coast, at some distance from Old Calabar. Itis also known by a different name, being the Aposo or Aposou of the Gold Coast. The letters of the missionaries (from which extracts were given at the commencement of this communica- tion) seem to indicate the possible existence of more than one species, probably of allied animals—the Dwan of the Krumen, and this, the smaller Angwantibo of the natives of Old Cala- bar. Whether the Dwan and the Aposow are the same, or different species, I am unable to determine: they probably bear a considerable resemblance to one another. From the great variety in size, however, of the animals referred to in these letters, I am at present inclined to believe there may probably be two, if not three, distinct species,—the Aposou, the Dwan, and the Angwantibo,—the Dwan being perhaps the largest in size. Description ofthe ANGwAntTIBO (from specimen in spirits:)— Perodicticus Calabarensis (Mih1)—above, yellowish-brown; the roots of hair dark gray; below, paler, in some parts nearly white; hair wool-like; length from muzzle to point of tail, 103 inches ; tail very short, (about th of an inch in length). , Proximal phalanges of both hands and feet (not including the pollex) united together by the integuments ; the two distal phalanges being free.* * A hand of the Potto, figured in “Cuvier’s Animal Kingdom’’—London, 178 Proceedings of the Royal Physical Society. The Angwéntibo is covered with a thick and long wool- like hair, which becomes short and thin on the face and on the extremities, the inner sides of the fore and hind hands being free from hair. The hair is of a dark gray colour at the base, and the upper third or so of its length is of a light brown or fawn colour, the terminal points being of a darker brown; this is the general character of the fur of the upper parts of the body and limbs. The face in front of the eyes is rather darker in colour, but the sides of the head are lighter, and the chin and throat are nearly white. The inner surface of the limbs is also lighter, as well as the whole under surface of the body, the gray hairs having their distal half of a light fawn colour, and in some places nearly white. The specimen having been for a long time preserved in spirits, makes it a little diffi- cult to get at the minute details of colour. There are no stripes or markings on the back, or other parts of the body, to be observed on this animal, as on the Stenops tardigradus of the East Indies ; its general appearance being more uniform over the surface, although somewhat mottled in character, from the hair varying in colour at base and apex. The Bopy of the Angwantibo is slender, and measures 103 inches in length from the point of the muzzle to the extremity of the very short tail, which is completely hid in the long fur of the body, and measures only about ith of an inch in length. This animal is a male; the penis, which is supported appa- rently by a small bone, projecting upwards and forwards from the rounded scrotum. The HEAD is oval and rounded, tapering rapidly in front of the eyes; the muzzle protruded, full or blunt, and rather prominent. The breadth of the head, in front of the ears, is about 14 inch; in front of the eyes, about 3ths of an inch. The length from the mesian line of the nose to the ante- rior part of meatus of ear is 1? inches; from point of nose to anterior angle of the eye is $ths of an inch; from anterior angle of eye to front of opening of ear, 14 inch,—the total length of head from muzzle, to back part, being nearly 24 1849 (Mammalia, &., with Notes, by Edward Blyth), shows no such conjunc- tion of the first phalanges, but three distinct phalanges are figured to each of the fingers. On the Angwantibo of Old Calabar. 179 inches. The Eyes are rather full and large, the opening of the lids measuring 4 an inch in length ; the distance between the eyes at their anterior angles is} an inch. They are rather prominent forwards, and very slightly lateral. The Kars are erect and patulous, rather large, and rounded in outline, with- out emarginations, measuring about 3ths of an inch across from before backwards, and also from above downwards ; they seem to be naked internally, and slightly covered with short hair externally. In this specimen they are nearly naked, especially on the inner surface. There are two transverse, abrupt, parallel, projecting ridges of cartilage, each measuring ;4,ths of an inch in length, in the free cartilage above the external opening of the meatus. The external openings of the Nostrits are rather lateral, and are sinuous, curved upwards and inwards toward the mesian line of the full and rounded snout; and there is a groove between them, running down to the front of the upper lip. The ToncuE is long, and rounded in front, rather rough, being covered with small papille. Immediately below the tongue is the projecting lamina, covered with a horny cuticle, and resembling a smaller, bird-like tongue, which springs from the frenum and projects forwards, about 2ths of an inch in length. It 1s free at its edges, and at its point, which projects about Jih of an inch; reaching to within ith of an inch of the point of the tongue itself. This horny lamina measures about ith of an inch in breadth across its root or base, and about Jih of an inch across its free or front exurvemity, which is divided into nine sharp terminal points or filaments. The P. Geofvoyi is described by Bennett as having this horny lamina terminating in about six filaments. It is diiicult to understand the use of this strange supple- mentary horny, bird-like tongue, or expansion of the frenum, with its pointed terminal filaments, in an animal stated to feed on fruit; it would seem rather to be some sort of additional assistance towards capturing or killing an insect prey; but, in any view, its use seems to be very obscure. Below the tongue and this supplementary organ, the mucous membrane lining the floor of the mouth has a slightly free margin pro- jecting along the sides of the gums of the lower jaw ; in which, 180 Proceedings of the Royal Physical Society. apparently, the ducts of the submaxillary gland (Wharton’s ducts) open into the mouth. The NEcK is rather short and slender. There is no ap- pearance on the back of the neck in this specimen “of the spinous processes of the five last cervical and first dorsal verte- bree, piercing through the hairy integument of the back, with a weak horny covering,” as described by Van der Hoeven of the Stenops potto. The Limbs are very slender, and nearly equal in length, the hinder extremities being a little larger and stronger in their development than the anterior. ‘The ForE HaNnDs (see fig. 1 of the annexed careful drawings, nearly the size of life, for which I am indebted to my friend, T, Strethill Wright, M.D.) are thinly covered with short hair on the Fig. 1. Hand. / ANGWANTIBO. dorsal, and are bare of hair, or naked, on the palmar surface. The thumb is much larger than any of the other fingers, to which it is opposed. There is a large rounded, fleshy, and horny tubercle, nearly 3th of an inch broad at its base, which projects about 3th of an inch from the base of the thumb, on the inner side (next the centre of hand). Im- mediately opposed to it, and of equal size, or a very little larger, is another apparently simple tubercle, rising from the outer side (next thumb), of the base of the clustered fingers (see * fig. 1); this however, is the rudimentary index finger, its free extremity projecting only about Ath of an inch. It is supported by a short metacarpal bone, with a full and ~ rounded extremity, to which are attached two small or 7 x On the Angwantibo of Old Calabar. 181 rudimentary phalanges; each of the other fingers (not including the thumb), having three. This rudimentary index finger has no nail; there is simply a minute mark- ing, like a cicatrix, or rather a mere short, depressed, smooth line, an indication of where a nail should be. The nails of the thumb and other fingers are all thin, flat, and rounded or ovate, like those of the human hand, and are not extended beyond the points of the fingers. The remaining three fingers are slender and prolonged, and the first phalanges are all conjoined by the integuments, the two distal phalanges of each finger alone being free. The index or second finger (considering the thumb as a finger) is, as already describ- ed, merely like a tubercle rising at the base of the others. The third finger is the smallest of the other three fingers, and also the shortest ; the fourth (or middle of the developed fingers) is the longest ; and the fifth, or last, is longer than the third. The hands are each divided into two opposing portions: the thumb, with the tubercle at its base, being opposed to the other fingers with the tubercle-like index at their base; the thumb itself being opposed to the fourth, the middle or longest of the fingers. The posterior hands or feet (see fig. 2, which also shows the length of the tarsus) are rather larger and stronger than the anterior ones, and are each divided into two opposing por- tions ; the one consisting of the thumb, with a large, rounded, fleshy tubercle projecting from the inner side of its base, as in the fore hand; and the other portion, formed of the remaining four fingers, the first phalanges of which are also conjoined, being covered by the integuments, as in the hand. There is a comparatively smaller fleshy tubercle, somewhat like the undeveloped index finger of the fore hand, projecting from the outer side of their base, which is opposed to the tubercle at the base of the thumb. It is not supported by any bone, but is merely a horny and fleshy projection like that on the base of the thumb. The nails of the thumb and fingers are thin, flat, and rounded or ovate in form, like those of the fore hand, with the exception of that of the second finger (counting the _thumb as the first), which is narrow, convex, sharp-pointed, and claw-like, and extends nearly to the point of the third finger, VOL. Il. C ADAG 182 Proceedings of the Royal Physical Society. this claw-like nail, indeed, constitutes one of the distinctive characters of the Famity. In the P?. Geofroyi of Bennett, the claw-like nail on the second finger appears to be 1 inch and ths in length (the finger being stated to measure ;,ths of an inch, or, including the nail, 2 inches },ths); whereas, in the Angwdntibo, the whole length of the free extremity of the finger is half an inch, including the claw-like nail, which measures rather less than a quarter of an inch. The hands and feet have been already mentioned, as being each divided into opposing portions. They remind one of the zygodactylic feet of the Climbing-Birds; and this character, taken along with the existence of the rete mira- bile of the limbs (the tortuous and anastomosing plexuses of vessels, which exist in this animal, as well as in others of its class), and the arboreal habits of the creature (for so completely does it dwell among the branches of trees, that it is stated by one of the missionaries to be scarcely able to walk on the ground), all seem to tell of long-continued muscular action, of a capability of taking a safe, sure, and long-enduring hold; and, probably, like others of its class, of a stealthy step, which may enable it to steal upon, and hold fast, an active and vigilant prey. The incident mentioned already by the missionaries, of the Dwdn seizing animals like the monkey, is very curious; as we cannot help thinking they must be seized and held fast for a some- what different purpose than merely to prevent them destroy- ing the young and unripe fruit, on which they both are said to feed. The dentition of the Angwantibo, to be afterwards detailed, would make us incline to the belief of its food being of a more mixed character than simply fruit, and that it probably included at least insects or their larve, for the cap- ture of which the peculiarly complicated lingual apparatus may afford special facilities ; or possibly, the smaller birds, which, from its nocturnal habits, it may also steal upon and capture, while they are quietly roosting among the branches of the trees. The structure of the feet, however, and the apposition of the thumb to the middle of the fingers, seem to show an adaptation for seizing forcibly the twigs of trees, rather than for the purpose of capturing a prey. On the Angwantibo of Old Calabar. 183 I subjoin details of the dentition of the Angwantibo; and also some of its admeasurements. For the relative measure- ments of the Poito, corresponding also to those already de- scribed of the Angwantibo, and showing their various differ. ences, see Bennett's account of the GENUS Perodicticus, referred to already. DENTITION. Upper Jaw :— Incisors 2: 2=4. Two together (in pairs), with interme- diate edentulous space,—ls¢ incisor the smallest, the 2d nearly twice as large as the first. Canines 1-1=2. Large and projecting downwards. The intermaxillary suture is described as being immediately in front of the corresponding teeth of the Potto; these teeth are therefore undoubtedly canines, and when the mouth is shut, they pass immediately behind the small canines which pro- ject forwards alongside the incisors of the lower jaw. Molars 6: 6=12. (False Molars, 3.) I1sé, smallest, conical; with very small and slight indication of an internal conical tubercle: 2d, conical ; with small internal conical tubercle: 3d, with external conical tubercle; and smaller, shorter, internal tubercle. (True Molars, 3.) 4th, with two external conical tubercles ; and two internal smaller and flatter tubercles: 5th, two exter- nal conical tubercles ; and two internal, smaller and flatter ones: 6th, two external conical tubercles; and one internal flattened and smaller tubercle. Lower JAW :— Incisors 2° 2=4. In pairs laid closely together, the pair appearing like one tooth, and all sloping forwards. Canines 1-1=2. Small, sloping forwards adjoining in- cisors, which they closely resemble. Each tooth, however, is slightly larger in size than a pair of the incisors. Molars 6: 6=12. (False, 3.) sé, large, conical, projecting forwards and up- wards like a canine tooth in shape (the corresponding tooth in the Potto was formerly described as a canine tooth). When the teeth are closed, however, the canine of the upper jaw 184 Proceedings of the Royal Physical Society. passes in front of this tooth, it is therefore the first molar ; 2d, smaller than first, shorter, conical, and pointed forwards ; dd, rather larger than second, conical. (True, 3.) 4th, two external and two internal tubercles, nearly equal in size; the internal rather the largest ; 5th, two external; and two internal and rather larger tubercles; 6th, two external ; and two internal tubercles, nearly equal, and less defined ; with another smaller tubercle behind. Tucisors. Canines. Molars. eee 2°20 4° 11 2? 6 6) eae Length of Body, from muzzle to point of tail, 104 inches ; tail, + an inch, including fur, 4 an inch. ANTERIOR LIMBs :— Length of Arm 23 inches ; Lore-Arm, not including hand, 24 inches. Hand.—The first phalanges of the fingers are covered and conjoined by the integuments of the hand, the two distal bones being the only ones that are free; length from wrist to point of fourth or longest finger, 14 inch. Length of Thumb, or First Finger, from wrist, 3ths of an. inch: of this, there is a free extremity of 4 an inch in length. Length of Index or Second Finger.—Metacarpal bone of index finger measures ths of an inch in length. The first phalanx measures ;%;ths of an inch, and the distal phalanx qsth of an inch in length; the metacarpal bone of index finger and first phalanx being, together, the length of the metacarpal bone of the second finger. The metacarpal bones of the other fingers measuring about ;,ths of an inch in length. Free extremity of finger about 3th of an inch. 3 Length of Third Finger from wrist, 2ths of an inch. The first phalanx of third finger measures ;4,ths of an inch; the second phalanx less than ,,ths of an inch; and the distal one rather less than ; ths ofaninch. Free extremityis tof an inch. Length of Fourth Finger from wrist, 14 of an inch. The first phalanx is nearly ths of an inch long; the second, jaths of an inch; and the third, about 58,ths of an inch. Fourth finger longest, free extremity 4 an inch in length. Fifth Pinger.—Length from wrist 1 inch. The first phalanx is about ;°,ths of an inch in length; the second, 3,ths of an On the Angwintibo of Old Calabar. 185 inch; and the third about ,2,ths of an inch. Free extremity ths of an inch. Span, 1 inch and ths of an inch. POSTERIOR LIMBS :— Length of Thigh, 24 inches; of Leg, 24 inches. Foot, from ankle-joint to point of longest finger or toe—the fourth, 13 inch. Tarsus, not elongated, about 3 an inch in length. Me idiareal bones measure from ;°,ths to ;8ths of an inch in length. The first phalanges (with the exception of the ‘eee like those of the hand, are conjoined together. Thumb or First Finger.—Thumb with metatarsal bone, about Zths of an inch long. First phalanx, 35,ths of an inch; second, ;4-ths of an inch. Length of Second Finger, 1 inch; first phalanx, nearly 2ths of an inch; second phalanx, ,%,ths of an inch; third phalanx, bone of claw, ‘;ths of an inch; claw itself, 33,ths of aninch. Free extremity 4 an inch. Length of Third Finger, first phalanx, ths of an inch ; second phalanx, ;4;ths of an inch; third phalanx, #,ths of an inch; third finger smaller than the fifth, and free about ths of an inch. Length of Fourth Finger, first phalanx, ths of an inch; second phalanx, ths of an inch; third phalanx, #;ths of an inch ; fourth finger longest, free about 4 an inch. Length of Fifth Finger, first chalaits. 7;ths of an inch; second phalanx, #,ths of an inch; third phalanx, nearly ysths of an inch. Larger than third finger, being inter- mediate between it and the fourth, and free for about 2ths of an inch. SPAN measures nearly 2 inches in length. This animal possesses a clavicle. The stomach is moderate. in size, and rounded in form, and contained what seemed to be digested vegetable matters. It has a large sacculated coecum of about 13ths inch in length. i / MICROSCOPIC STRUCTURE OF THE Hair OF ANGWANTIBO.— It occurred to me to examine through the microscope some of the hairs of this little animal ; and I was much struck by their 186 Proceedings of the Royal Physical Society. apparent variety and beautiful cellular structure. Plucking a few at random from the upper surface of the body, I found I had got three different varieties: large flattened hairs, showing a combined series of cells; smaller hairs, containing a single series of cells; and each displaying the external or epithelial coating of the hair, which forms a series of over- lapping margins or scales, their free edges being directed to- wards the points of the hair; and, lastly, small bent or curved solid horny-like hairs, with this overlapping external coating developed here and there into large hook-like processes or spines. At my request, my friend Dr T. Strethill Wright made a minute microscopical examination of these hairs, and sketched the accompanying careful drawings (see Plate VIII.), which show very well their beautiful structure. Dr Wright used simply water in examining some of the hair; and this fluid entering by the cut extremities, and permeating the hair thoroughly, distinctly revived. and exhibited their internal cell structure. In the smaller-sized hair, containing only one series of cells, the cells are found to have an hour- glass contraction in the middle, the lower half of the cell con- taining the colouring-matter of the hair, and the upper part of the cell displaying a distinct central nucleus, the existence of which, at least in the body of the hair, is a fact which was new to both of us, if not altogether new to microscopists in general ? These nuclei were also beautifully seen in the cells of the larger hairs. Dr Wright has figured (Plate VIII. fig. 4) the peculiar appearance which some of the hairs displayed, of black bars, arranged in a somewhat parallel manner, or zig- zagging from one extremity to the other, in the central portions of the bodies of the hair; for the lower, and upper portions of all the hairs, showed no cell cavities, being formed apparently of solid structure. These black bands were due to some of the uncut hairs being mounted in turpentine or balsam, which did not permeate the hair like the water, but obscured their true structure altogether, by enclosing the air as a black band, which was varied both in shape and in contiguity, in the lacerated cells of the hair. Thick hair or fur of a cellular structure containing thus enclosed a considerable amount of atmospheric air, a bad con- ductor of heat, and therefore useful in preventing the rapid a Vol. IT. 4 T. Strethill Wright delf & 1i PLATE. Vil Rk Royal Physical Society Edinburgh Hair of Angwantibo. On the Angwantibo of Old Calabar. 187 cooling of the body of the animal, has been believed to be peculiarly adapted as a covering for animals inhabiting cold climates ; it seems, however, to be not inappropriately found on this little animal, which is stated to search for its food by night, and is therefore exposed to the damp and cold which occur at night in even a tropical forest. Annexed is Dr Wright's detailed description of Plate VIII. DESCRIPTION OF PLATE VIII. Fig. 1. Proximal portion of small hair in water, showing the recurrent spines, 2. Middle portionof small hair in water, showing hour-glass-shaped cells, one-half of which is occupied by pigment, the other by the nucleus and vacuolated “ cell contents.” Diameter about ‘001 inches. 3. Summit or solid portion of large hair, showing contracted scales. 4. Upper part of large hair in turpentine, showing dark spaces filled with air, formed by the shrivelling of the cell cOntents, of single and double row of cells. Diameter about °006 inches. 5. Middle or broadest part of large flat hair in water, showing single layer of cells, with nucleus and vacuolated cell-contents. Diameter 009 inches. The Society may think Ihave entered rather too much into minute details of description. My reason for doing so, is to leave no doubt on the mind of any one, who may wish to make comparisons between this Angwantibo and any other indivi- dual of the genus, as to the special animal I have attempted to describe ; and, for preservation, it is my intention to deposit the specimen in the Natural History Museum of the University. Since the preceding pages were in type (various unavoidable circumstances having delayed the publication of these Proceed- ings), | have been fortunate enough to get this specimen of the Angwantibo, and my detailed description, compared with the Potto described by Mr Bennett; and also with other speci- mens of the Potto in the collections of the British Museum— my friend, Mr William Carruthers, of the Botanical Depart- ment of that great national institution, having, at my request, kindly taken the trouble of examining them. Mr Carruthers informs me I am correct in my opinion of the Angwéntibo being a distinct species from the Potto, the Pero- dicticus Geoffroy? of Bennett; and also that it is a species apparently unknown to naturalists. 1am therefore at liberty to designate it the Perodicticus Calabarensis. 188 Proceedings of the Royal Physical Society. Mr Carruthers says :—“ It is certainly a second species of Perodicticus. I compared it with two stuffed specimens of the Potto, and, with the assistance of Dr Gray, determined that it was new, differing chiefly from P. Geoffroyi in its tubercle- like tail and large ears. I also got Mr Bennett’s specimen of the Potto,—which is yet fortunately in spirits,—and have been able more completely to discriminate the differences.” At my desire, Mr Carruthers got an artist to make sketches of the head of Mr Bennett’s specimen of the Potto, and also of my specimen of the Angwdntibo, to show the vari- ous differences between them, in a more manifest way than by any lengthened description; and as both the specimens have been preserved in spirits, these comparative differences Fig. 3. Head of Angwantibo are seen at a glance, no change in the original appear- ance of either, having been made by any attempt at skin- ning, or otherwise preparing them for preservation. The sketches are of the natural size, and Mr Carruthers mentions they are very accurate, and are drawn without any attempt to put the hair in its natural position. In this way two things are gained. First, both specimens are exhibited as they really are, without any exercise of the imagination of the draughts- man; and, secondly, the outline of the skull is given in both, which is of much more importance than the outline of the hair, in animals where the hair is thick and stands nearly erect. The annexed woodcut (fig. 3), is the sketch of the head of the Angwdntibo, the other (fig. 4), that of Mr Bennett’s specimen of the Potto. On the Angwantibo of Old Calabar. 189 In pointing out the various specific differences which the comparison of the two specimens make manifest, Mr Carru- thers says, in the Angwdntibo the body and limbs are more slender than in the Potto, and the colour of the hair is more uniform. The head is longer and narrower, with a more produced muzzle, larger mouth, and more prominent eyes; while in the Potto (see woodcut), the head is nearly round, and has a much less projecting muzzle. Again, the ear is larger, and directed more upwards and forwards in the Ang- wantibo; and there are two folds, as already pointed out, in the inner surface of the ear; while there is only one in the Potto. The drawings show also the remarkable differ- ences in the teeth. The teeth in the lower jaw, which Fig. 4. Head of Potto. Bennett described as the canines in the Potto, but which are now considered as pre-molars, are mentioned by him as having cutting surfaces, both before and behind, they are, in fact, small, flat, triangular teeth ; whereas in the Ang- wantibo they are long, rounded, and more canine-looking. Then the six teeth in the front of the lower jaw, in the Ang- wantibo, are smali and hyaline, not visible above the under lip; while in the Potto they are large, prominent, and pro- jecting (see woodcuts), and of the same colour as the molars. There is also a very striking difference in the hands of the two little animals. Mr Carruthers has been good enough to make the annexed careful sketches, the size of life, of the hand (fig. 5), and the foot (fig. 6), both belonging to the left One LE, 2B 190 Proceedings of the Royal Physical Society. side, of Mr Bennett’s specimen of the Potto, (see woodcut, figs. o, 6); and on comparing these sketches with those already given of the Angwdntibo, which, for comparison, I here repeat (figs. 1, 2), the differences will be seen more clearly than could be brought out by any description. In the Ang- wantibo the hands and feet are small, round, and fleshy, with several large pads; in the Potto they are large, flat, and thin. In both, as has been already carefully described, the index fingers of the fore hands are undeveloped ; being represented in the Angwantibo by a simple tubercle (see * fig. 1.) Inthe Potto, however, as shown in the drawing, the index is not so like a mere tubercle, but is more developed, and therefore more resembling a finger, than in the Angwantibo, (See * fig. 5.) Fig. 1. Hand. Fig. 2. Foot. / ANGWANTIBO. Mr Carruthers says the tail is perhaps the most striking distinguishing character. 1 have already in the body of my paper sufficiently described it. Mr Carruthers informs me that when comparing the dif- ferent species of Van der Hoeven’s genus Stenops, in the British Museum, he was struck with the great diversity of their general appearance, and wondered at a zoologist like Van der Hoeven grouping together what appeared to him to be several well-marked Genera. Indeed, the only explana- tion that occurred to him was, that Van der Hoeven intended to give the character of a SuB-FAMILY to his Genus Stenops. Mr Carruthers tells me, that while comparing the specimens of these two animals, he had on his table all that has been pub- On the Angwintibo of Old Calabar. 191 lished on the Potto. Bosman’s figure is a grotesque carica- ture of a fat and lazy animal, having a very faint resemblance to the Potto. Van der Hoeven gives a drawing of the skull in the “ Tydschrift voor Nat. Gesch.,” vol. ii. plate i. fig. 3, and of a young animal, in plate 11.; also a very full account, with drawings of an adult, and of the skeleton, brain, and viscera, in a paper in Verhand. der Eerste Klasse van het Fig. 5. Hand. Potro. Kon. Med. Inst. IV. 1851. More recently, in 1856, Dahl- boum, in his “Studia Zoologica,” gives a figure and de- scription of the Potto. He divides the Lemuride into three sections. First, the true Lemurs, with long tails; second, the Lorids (stenops), without tails, and with long limbs; and third, those with very short tails, or almost tail-less, oval or globose heads, and short fleshy arms. Here he has two genera: I. Perodicticus, characterised thus: ‘‘ Caput ovale, ore crasso obtuso. Aures liberee. Oculi subparvi. Index manus an- ticze abortus, in tuberculum coarctatus.” And, II. Wyctice- bus, ‘ Caput globosum, ore conico. Aures in pelle absconditz occuli magni. Digiti normales.” I may mention, in conclusion, that I find, since this paper was in type, that Van der Hoeven made a short communication 192 Proceedings of the Royal Physical Society. on the Potto to the Meeting of the British Association in 1850, and a second on the anatomy of the Potto in 1860, in which he refers to a complete monograph of this animal published by him in 1859, in the seventh volume of the Transactions of the Royal Academy of Sciences of the Netherlands (Ortleedkun. dig Ondersock van der Potto van Bosman door F. A. W. Van Campen Med. Cand. Uit due Platen Amsterdam. 4to, 77 pp.) Van der Hoeven also details his arrangement of the Lemuride, published in his ‘«‘ Handbook of Zoology,” and refers again to the peculiarity in the Potto, “that some of the spinous pro- cesses of the neck, covered only by a thin corneous epiderm, pierce through the fur-like prickles. They are those of the fifth to the last cervical, and of the first two dorsal vertebree.” These projecting processes are evident, Mr Carruthers informs me, in Mr Bennett’s specimen, though, probably from its youth, neither so numerous nor so strongly marked as Van der Hoeven describes them. In the two stuffed specimens in the British Museum they cannot be detected, as might have been expected; as already stated, I could not detect this pecu- liarity in my specimen of the Angwéantibo. I have been recently favoured with the following explana- tion of the name Angwéntibo, from the Rev. Alexander Robb : —‘‘ The name Angwad-ntibo is compound; the first part is the same as the name of the domestic cat, which the Calabar people call Angwa, or Angwa-mbéana—the ng being a very soft nasal sound. Angwéis probably onomatopoetic, from its resemblance to the sound of the mew or cry of the cat. The meaning of ntibo is unknown to me. The Angwéntibo is, therefore, so named, probably because it is supposed to re- semble the cat, either in its cry or in some of its habits. We give this note as a correction of the etymology proposed in the letter at the beginning of the above paper.” The Secretary reported that as several communications still remained in his hands, which he was anxious should not be allowed to lie over to another Session, he proposed that another meeting of the Society should be held on Wednesday, the 9th of May. This proposal was agreed to, and the Society adjourned. Observations on British Zoophytes. 193 Wednesday, 9th May.—T. Stretaitt Wricut, M.D., President, in the Chair. Various Committees were appointed for conducting special investiga- tions during the recess. Mr George Logan reported that, in accordance with the remit of last meeting, the Committee on Marine Zoology had prepared and forwarded a memorial to the Lord Advocate, praying that certain exceptions be granted on behalf of scientific societies, from the restrictions in the pro- posed New Herring Fishery Bill. He stated that he had received a reply, mentioning that due weight would be given to the prayer of the memorial, The following donations to the Library were laid on the table, and thanks voted to the donors :— Transactions of Royal Society of Edinburgh, Vol. XXII., Part I., 4to; Proceedings of the Royal Society of Edinburgh, 1858-59, 8vo.— From the Society. Proceedings of the Zoological Society of London, 1859. Part III. July to December.—From the Society. Board of Science, Second Annual Report (Gold Fields), 1859-60, Victoria ; presented to both Houses of Parliament by his Excellency’s command.—From David Page, Hsq. De la Formation et de la Fécondation des Ciufs chez les Vers Nématodes. Par Edouard Claparede. Geneve,1859. _4to.— Zur Morphologie der Zusammengesetzten Augen bei den Arthropoden, Von Dr Edouard Claparede in Genf.— From the Author. The following Communications were read :— I. Observations on British Zoophytes. By T. Stretuitt Wricut, M.D. On Halcampa Fultoni (Strethill Wright), a parasitic Actinia. The author stated that, in the summer of 1858, he took, by dipping, a great number of Medusez of the genus Thaumantias, off Granton Pier. 'To the peduncle of one of these was attached 4 small Actinia, about half an inch in length, and one-eighth of an inch in diameter, From its general appearance, he considered it to be a young specimen of Actinia troglodytes, which had been seized by the Medusa, dragged from its native mud, and brought captive to the surface of the water; but it was unfortunately lost before he could examine it carefully. In June, his friend, Mr Fulton of Granton Pier, brought him some specimens of Thauman- tias, to one of which another Actinia, of the same species as the one he had before observed, had attached itself by swallowing the peduncle of the medusa. The body of this Actinia was of a transparent, yellowish- white colour, and marked by twelve paler lines, indicating the situation of the longitudinal septa within. The oral dise was oval, and formed by 194 Proceedings of the Royal Physical Society. the basis of the tentacles and the mouth. The tentacles were twelve in number, of a rich umber brown colour. About one-half of each from the - base was marked with five opaque pale-yellow lozenges, and from thence to the top by four bands of the same pale-yellow colour. The brown matter consisted of amorphous, pigment granules, the yellow matter of highly refractive and exceedingly minute molecules, apparently calea- reous. Hach tentacle was curved backwards, and resembled the abdomen ofa wasp. The pigment could be forced through the top of the tentacle by pressure, indicating an opening at that part. The mouth, instead of being linear, as in the Actinias, tended to assume a quadrangular, or crucial] form, though the constantly varying shape of the dise rendered a descrip- tion of it difficult. The stomach was very peculiar, and differed from that of the Actinias. It was a flat and obscurely quadrangular sac in transverse section (fig. 1.) Its angles he should de- scribe as superior (a), lateral (6), and in- ferior (c.) The superior angle was con- nected to the parietes of the body by four septa (d), the lateral angles each by one septum (¢), and the inferior angle by two septa (f) These septa were continued downwards, as in the actinias, to the lower extremity of the body, and had their free edges bordered by a convoluted ciliated band, furnished with cnide, or thread-cells. The stomach and parietes were further con- nected by four intersepta (g), as he should Diagram of transverse section call them—one between each of the lateral of H. Fultoni:—a, superior angle : ai stomach) bie ee aula and anterior angles of the stomach, and aa ees aoe ; one between each of the lateral and pos- intersepta, uniting stomach with terior angles ; but these intersepta bore no EA res. convoluted bands. The septa probably bore ovaries, or sper maries, the intersepta not, in which case the reproductive system of the animal now described agreed in simplicity with that of the polyp of the Alcyonide, which had only eight septa, each bearing ciliated bands. The upper part of each of the septa and intersepta was perforated by an oval opening, so as to give an uninterrupted passage beneath the tentacles to the circulation of the fluids of the body. By tracing this passage in. the Lucernarias, he had come to the conclusion that it was the homologue of the eae canal of the gymnophthalmatous medusa, The attachments of the stomach thus resembled those of the same organ in the other Helianthoid and Alcyonian polyps, but in shape it widely differed from these. In Actinia and Alcyonia the stomach was a flattened sac, open, and evenly truncated at its lower extremity. In the animal now described the lower border of the stomach curved gently downwards from the superior to the lateral angles (fig. 2,a 6), and from the lateral to the inferior angle it bent deeply and abruptly downwards On New Fossil Forms from the Old Red Sandstone. 195 (fig. 2, bc), while the last-named angle itself was produced outwards and downwards, so as to form a beaked process, as shown in the figure. The thread-cells of the tentacles are simple and unbarbed ; those of the septal bands furnished with a zig-zag Fig. 2. thread. When the animal was separated from the peduncle of the Medusa, and placed in a dish of sea-water, it slowly moved from place to place by the aid of the tenacious palpocils which studded the tentacles and upper part of the body, and alternately filled itself like a balloon, and emptied itself by a vermicular contraction of the parietes, which commenced be- neath the tentacles, and passed waa a | backwards. When dilated, it was BRE y | ae seen that the animal was destitute % of a sucking disc, and that the pos- terior part of the body terminated in a funnel-shaped depression, opening into the eavity of the ,,pissrm of ateral view of stomach of body, and permitting ingress of angle; c, inferior angle; dd, septa; ee, water therein. During contrac- eae tion, this funnel was everted, and became a cone, through the apex of which the fluid was again ejected. II. On New Fossil Forms from the Old Red Sandstone of Forfarshire. By Davin Pagez, Esq. (Specimens of the Fossils were exhibited. Mr Page next drew attention to some new fossil forms from the Old Red Sandstone of Forfarshire. These fossils occur in a bed of highly fissile shale, lying in the course of the Pow- burn, near the church of Farnell, and belong to the gray tile- stones, or lowermost series of the system. They consist chiefly of fishes and crustacea—the former embracing three or four spe- cies of Diplacanthus, two of Acanthodes, Climatius, Cheira- canthus, and several forms yet undescribed, the latter being Pterygotus, Eurypterus, and Kampecaris, with detached plates, and Parka decipiens. The deposit (discovered some time ago by the Rev. Mr Mitchell of Ferryden) was now being worked out under the superintendence of the Rev. Mr Brewster of Farnell, and Mr Powrie of Reswallie, solely for the fossils— the noble proprietor, the Earl of Southesk, affording every 196 Proceedings of the Royal Physical Society. facility and assistance in the work of excavation. A great number of specimens had been obtained in beautiful preserva- tion, as could be seen from those exhibited to the Society, and geologists might rest assured that every care would be taken to render these treasures available to the purposes of science.* Independent of the paleontological value of so many new and perfect forms, the discovery was of high litho- logical interest, as enabling geologists to determine with greater precision the relative ages of the Forfarshire and Caithness series, both of which had now been proved to be _ characterised by the same specific forms. Ill. On the Nidus and Y. oung of Pontobdella muricata, and other An- nelides. By Cuas. Wittt1am Prac, Esq., Wick. (With Illustrative Sketches.) On the 21st January 1859, my colleague, Collector Boyd, kindly sent me an old oyster shell attached to an oyster, brought to him from the Frith of Forth, on which he had observed something strange and unusual. The form was quite new to me, and although well acquainted with the nests of many shells and other sea animals, this differed from all I had previously seen. I found amongst the nests a small annelid, and, on applying my lens, discovered that it was a young Pontob- ~ della, which I supposed had got in there for shelter. I laid it carefully aside, and continued my examination, and soon found a portion of a second worm protruding from the upper part of one of the nests, and that it, too, was another tiny Pontob- della. This quite surprised and delighted me. Still, I had my doubts whether it had not crept into the nest after it had been accidentally ruptured, and suspected that its errand was one of felonious intent. I then selected a nest which appeared to be full and uninjured. On opening it with my lancet, I found that I had libelled the above-mentioned, for there, snugly coiled up, was another veritable baby Pontob- * Several of the fishes referred to by Mr Page have since been figured and described by Sir Philip Egerton in No. 10 of the “ Decades of the Geological Survey of Great Britain.” Three of the genera are also figured in Mr Page’s new work, “Past and Present Life of the Globe.” On the Nidus and Young of Pontobdella muricata. 197 della. Here, then, was a discovery! The Pontobdella is so well known as a parasite on skate and other fishes, that I need not describe it. Remembering how little was really known about the propagation and early forms of annelides, and of the conflicting opinions entertained by various naturalists on the subject, I felt quite delighted,—some believing that all pass through many changes, from the egg to the adult state; others that.there is no change. The tale of the “two travellers” came into my mind, “both are right and both are wrong,” and that at any rate an opportunity was afforded me, if ap- pealed to as an umpire, to decide satisfactorily one point in the controversy,—namely, that beyond that of growth, the Pontobdella passes through no change after leaving the egg. The nests are darkish gray, stout and tough, balloon-shaped, are deposited in a group, but not in mathematical order. Although one showed a worm protruding from the top, this was caused by the accidental rupture of the egg; the natural opening for the escape of the young is a circular opening on the side. Each nest contains one worm. The shell having been long out of the water, all the worms were dead, but in a good state of preservation ; they, with many of the nests, are in spirits, and only await the time when some one will demand them for publication, in the long desiderated history of these beautiful, but too long neglected creatures. Having given my decision for the no-change man, I must now turn and side with those who assert change. From having read many of the papers, and seen the figures both of the adult and early stages of annelides, by the late Dr George Johnston, and of others published in various volumes of the “ Magazine of Natural History” (unfortunately few of these volumes have come in my way), and as well from observations of my own, “ On the luminosity of the sea,” published in the ‘“ Transac- tions of the Royal Institution of Cornwall for 1849 and 1850,” where I figured two forms of the young of anne- lides which came under my notice during my researches on that subject, as well in 1844, when I first discovered the Nereis bilineata, as a tenant of the same shell with the her- mit crab,—Pagurus bernhardus,—l saw the eggs of this Nereis extended, and afterwards sheltering under the appen- VOL. II, ZAC 198 Proceedings of the Royal Physical Society. dages on each side of its really beautiful parent. Of the parentage of these eggs there is no doubt; but beyond that all else about them to me is dark. I algo regret I must leave those figured at 6 and 7 (sketch exhibited) in the position of those “whom many fathers share,” from not being able to affiliate them. ‘The one figured at 6 occurred to me both at Fowey, in Cornwall, and at Peterhead, in Aberdeenshire. At the expense, I fear, of being tiresome, I cannot resist the opportunity of adding, that in the course of my turning up the stones between tide-marks, after the nests of Lamellaria ten- taculata, in March 1852, at Wick, I observed bluish masses of jelly-like matter, in which light yellowish spots showed through the transparent envelope. At first I took them for masses of ova of shell, or Nudibranchs; but on examining one carefully, I observed that at each end of the elongated mass there was a hole, and I fancied I could see something move in it. On passing my knife under it, a small dark, olive- green, iridescent worm, eel-like, glided out. This I secured, and found it to be one of the Nemertes, probably WV. gracilis, so abundant under stones, where black, decomposing vegetable matter is mingled with sand. From year to year ever since I have noticed these jelly-like masses, with the attendant worms. Last night (8d May 1860), I found five or six nests of them under one stone, and as they were farther advanced than those I first found, instead of the Nemertes being in the centre of the mass, they lay either close alongside of it, or partly across it, thus showing attachment to its nest. I have often transferred these worms and nests to my aquaria, but have never been able to get the eggs to hatch. As they are gene- rally on large stones, I am obliged to use force to get a piece sufficiently small for my purpose; this, added to not being able to associate them with proper material, and in the posi- tion they occupy in their native element, will account for failure. The ova are arranged in two rows, as may be seen through the glairy mass, and in trefoil-like spots. These masses are from two to three inches in length, and about one- fourth of an inch across, and high. They are very tough and elastic. Dr T. Strethill Wright stated that he had, in company On the Nidus and Young of Pontobdella muricata. 199 with Dr M‘Bain, dredged up the nests of Pontobdella in the Firth of Forth. Sir, J. Dalzell had figured these nests and the young in his “ Powers of the Creator,” vol. 11. plate 1, and well described them in that work. Referring to Mr Peach's description of the Nidus of Numertes gracilis, Dr Wright stated that the nests of several annelides might be found in the pools near Seafield, the eggs of which had been hatched under his care, and he described the progress of development in the embryo. He stated that at one stage the embryo of the annelid exactly resembled that of Cydippe pomiformis, formerly described by him to the Society. IV.—WNotice of Snakes and Lizards from Old Calabar. By GrorGE Logan, Esq., W.S. During the year 1857, the missionaries in Old Calabar connected with the United Presbyterian Church in Scotland, transmitted to some of the Fellows of the Royal Physical Society a considerable number of specimens of snakes and lizards, and of other interesting objects in various departments of natural history. Of the reptiles a portion were sent to Dr J. E. Gray, of the Zoological Section of the British Museum, with a request that he would examine and name them, that they might be described and submitted to this Society; and if there were any duplicates among them which would be of service to the Museum, they might be retained. Dr Gray acknowledged receipt of the specimens transmitted to him, but he seems to have overlooked or forgotten the conditions attached to their transmission, as in the spring of last year (1859) he, upon personal application at the Museum, only returned six of them named, without any notice of the remainder. He was then written to, reminding him of the terms upon which the reptiles were sent to him, and that it was desirable that a list and description of them should be submitted to this Society, but no answer was received to this communication. The British Museum Catalogue, and the Proceedings of the Zoological Society of London, have furnished, however, to some extent the information awanting. The following notice by Dr Gray appears in these Proceedings, Part xxil., March 1858, page 154:— ‘Mr Logan kindly 200 Proceedings of the Loyal Physical Society. sent to me for examination a number of snakes and other reptiles which had been collected by the missionaries in Old Calabar. Among several very interesting species I observed a new genus of the family Boide, which I have great pleasure in laying before the Society, more especially as it appears to be the indication of a new tribe in that curious family. “ This animal belongs to the second section of the family which is thus characterised :— “IT. Tail very short, not, or only very slightly, prehensile. Head indistinct, short. “Tt is entirely distinct from the tribes Cylindrophina, Carinina, and Tortricina, and therefore I propose to form for it a tribe (Calabarina) by itself, having the same characters as the genus. “ Calabaria. ‘Head small, short, rounded in front, the same size as the body; muzzle depressed, rounded; labial shields flat, 3 the hinder small, front moderate ; rostral shield high, large, tri- angular; frontal shields, three pairs, band-like, subsimilar, followed by a band-like shield continued from side to side, which has behind it a small subtrigonal shield on each side, with a central large triangular shield between them on the crown. yes surrounded by scales, on the upper edges of the upper labial shields, and the outer edges of the fourth and fifth frontal plates, and with one ocular shield in front, and two smaller behind the eyes; loreal shield single, small; pupil circular. Nostril lateral, between two small nasal shields. Body cylindrical. Scales broad, triangular, po- lished, rather sunken and subrugose in the centre. Ventral shields very numerous, band-like, transverse, about half as wide as the diameter of the body. Vent small, with a single preanal shield. Spurs large, distinct. Tail short, as thick as the body, blunt, and rounded atthe end. Subcaudal shields broad, band-like, one-rowed, like the ventral shields. ‘T think it probable, when some other specimens have been examined, that the band-like shield extending across from the upper edge of each eye will be found to be composed of three shields like the band behind it, which are here united into Notice of Snakes and Lizards from Old Calabar. 201 one band; and then the head shields will lie thus :—three pair of band-like frontal, two smaller triangular superciliary shields over each eye, having in the middle between them two triangular parietal shields. “ Calabaria Fusca (pl. xiv.) “Dark brown, some of the scales yellowish, scattered singly or in groups on the back and sides; ventral shields grayish. Sides of the belly with a few unequal yellow spots. ** Length, 36 inches; diameter, Linch. Hab. Old Calabar, West Africa. (Geo. Logan, Esq.) “Since this paper was read, I have discovered a young specimen of this boa among the specimens from the Zoological Society, which they had received from Fernando Po. It is about half the length and diameter of the specimen from Old Calabar. It has the head shields more uniform, and as I sup- posed they might be when I described that specimen. It has three pairs of band-like frontal shields over the forehead, a rather large parietal shield behind them on the crown of the head, and two small subequal superciliary shields between the outer edge of the parietal and the eye, on each side a narrow transverse band-like central shield behind, and rather broader than the parietal shield, with a small scale-like shield, like those on the neck behind, and on the sides of 1t.”’ Although the above descriptions have thus already appeared in the proceedings of another Society, there has been no hesi- tation in fully quoting them, not perhaps because they ought rightfully to have first been given in the Proceedings of this Society, but that they are of sufficient interest to entitle them to repetition. | Of the other specimens of reptiles returned by Dr Gray, that labelled Ahewitulla Chenonii will be found noticed in a most useful list prépared by him, at p. 161 of the above-mentioned part of the Zoological Society’s Proceedings, No. 68 of the list, under the leading name of Ahetulla Irreqularis, together with its synonyms; the localities assigned being Gambia, Fantee, and the Gold Coast. Another of the specimens will be found noticed in the same list, immediately following, under the name Ahetulla Smaragdina, together with its synonyms, 202 Proceedings of the Royal Physical Society. the localities assigned being Ashantee and Guinea. The next specimen, Causus Rhombeatus, will also be found in Dr Gray’s list, p. 163, No. 86, with its synonyms (Hab. West Africa; Gold Coast, Liberia, South Africa); but it is, more fully described in the catalogue of reptiles of the British Museum, 1844 (Snakes, p. 33). Of this snake the British Museum possesses four. The specimen named Boodon Geo- metricus will be found, with its synonyms, in Dr Gray’s list, p- 159, No. 42, under the name Bowdon Geometricus, Hab. West Africa; and the specimen named Onychocephalus Liberianus will be found with the single synonym Onycho- cephalus Liberiensis, under the name Onychopsis Liberiensis, in Dr Gray’s list, p. 157, No. 18; Hab. Liberia, Calabar. The last remaining specimen to be noticed is a lizard, Tiliqua Fernandii, described in the British Museum Cata- logue (p. 110, Lizards) as Tiliqua Fernandi—the Fernando Po Tiliqua—of which an interesting account has already been given to this Society in a paper by Mr Andrew Murray, at p. 415 of the first volume of its Proceedings. The oblique cross brown bands along the brown sides should be bright scarlet or vermilion, but stuffed or preserved specimens seem to lose this brilliant colour, as it is not to be seen in the pre- sent specimen, although otherwise in excellent preservation. V. On the Stlicification of Organic Bodies. By ALEXANDER Bryson, Esq., F.R.S.E. The solution and deposition of silica has become a very im- portant question, not only to the mineralogist, but to the physical geologist. Whilst the mineralogist has speculated on the forms of silicious minerals and fossils, he generally has arrived d prior? at the conclusion that they were of aqueous origin; the geologist, on the other hand, has assumed them mostly as due to igneous action. M. Brogniart was the first to point out the true theory of the silicification in fossil woods, in an able paper published in the “ Dictionnaire d’ Histoire Naturelle.” In 1828 Von Buch communicated a paper to the Academy of Sciences of Berlin, in which he boldly asserts that the silicifying process never immediately attacks the calcare- ous shell; that it develops itself only upon the organic sub- On the Silicification of Organic Bodies. 203 stance of the animal, or the organic matter contained in the shell, and that where such organic substance is not present there, no silicifying takes place. In support of these views of Von Buch, it may be remarked, that wherever shells are found embedded in a silicious matrix, they are generally en- tirely converted into silica, no doubt owing to the large quan- tity of animal matter contained in them before silicification took place. In no instance could I find a trace of calcareous matter remaining, clearly showing that either a chemical change had taken place, or a mechanical substitution of the silica for the whole calcareous matter. In further proof of Von Buch’s theory, I may quote a paper by Dr Bowerbank on a zoophyte (Alcyonites parasiticum) which he found enclosed in an agate. The interest attached to this paper is, that while we have no evidence of the time required for the silicification of calcareous bodies, and of woods and horny substances here, we have complete evidence of the rapidity of the change from the slight amount of the de- composition of so tender a zoophyte as an Alcyonium. On this point Dr Bowerbank remarks, ‘‘ Nearly the whole of the animal within the agate is in a beautiful state of preservation, but there are a few spots which present evidence of the com- mencement of decomposition by the detachment of groups of cells from the mass of the polypidom ; in these cases the re- mains of the tentacles, as might be expected, are very rarely to be seen, and the disrupted mass is totally without a sponge fibre. The envelopment of a tooth, or of hard calcareous bodies, such as shells, afford no definite information regarding the time necessary to accomplish such an operation. The invest- ment even of such bodies as the rigid endurable horny fibres of that tribe of sponges which are usually to be observed em- bedded in flint, cherts, and moss agates gives also a consider- able range of time to accomplish the fossilisation ; but when we see such a soft and perishable substance as the fleshy body of the living Alcyonide, and such delicate organs as the ten- tacula of the polypes thus preserved with such evident appear- ances of freshness and perfection, I own it excites in me the greatest astonishment that there should have been so rapid a deposit of silicious matter as must evidently have taken place 204 Proceedings of the Royal Physical Society. thus to entomb the animal in such a condition as proves that at the utmost but a few days must have elapsed before it was so far encrusted as to completely preserve the form and posi- tion of the animal, not by a sudden immersion in suppositi- tious silicious paste, impounding it instantly in its full vigour, but after by a slow and gradual decease; for this condition which I have described of semi-protrusion of the tentacula is that with which every one acquainted with recent zoophytes in a living condition is so familiar as an indication of slow and undisturbed death by exhaustion. In this condi- tion of semi-protrusion of the tentacula I have seen the animals of Alcyonium digitatum, Alcyonidium parasiticum, Caryophyllacea Smithii, and numerous species of Sertularia and other zoophytes die, if allowed to do so without interfer- ence; but if touched or disturbed, the tentacula are slowly withdrawn, and never again extended. It does not appear to me to be necessary, for the production of a fossil, that the whole of the silex should have been deposited immediately. We may readily imagine, that after the rapid deposition of the first portion induced by the full exposure of the animal matter, and the consequently strong elective attraction exerted by the animal for the earthy particles, that the remainder of the de- posit—the filling up of the interstices of the network—would be more slowly and regularly completed in accordance with the laws of crystallisation, as we find that from the surface of this animal there are the same series of crops of radiating calce- donic crystals that characterise the structure of the great mass of the moss agates which I have described in my paper on those bodies, published in the “‘ Annals and Magazine of Natural History,” vol. x. page 9. This prismatic semi-crystallisation, if we may reason from analogies afforded by the phenomena of crystallisation dis- played by salts formed by acids with earthy or metallic bases, is a rapid, and perhaps irregular operation, compared with the slow formation of the regular and well-defined crystals of the re- spective substances under consideration, and which crystals are probably produced without the interference of any other agent than that which is necessary for their own construction. The specimens of fossil wood now shown prove that during the Or On the Silicification of Organic Bodies. 20 process of silicification considerable ruptures of the vessels had taken place, and that the wood was in a recent state at the time of fossilisation. I may further state, that the late Robert Brown showed me a section of silicified wood which fully corroborated the reasoning of Dr Bowerbank, as it bore distinct evidence of having been alive, and struggling to live, during the process of silicification. That the solution of silica in the humid way was not so difficult as many geologists supposed, chemists’ experiments all tend to prove that it is soluble in a large degree. I especially refer to the experi- ments of De la Rue, who succeeded in obtaining minute crys- tals of quartz by an aqueous method. De la Rue found that the gaseous body, fluoride of silicon (Si F,), is decomposed by contact with water, one-third of the silicic acid being de- posited in the form of jelly and silicated hydrofluoric acid (3HF + 28iF,) produced: thus, 3 (SiF, + 3 (110) = 810, (which deposits) + 3HF + 28iF3 (which remains in solu- tion). The deposited silica is extremely soluble in water, and he observed that the silicated-hydrofluoric acid always retains a portion of uncombined silicic acid in solution, which deposits after the lapse of some months in minute crystals of artificial quartz. It thus appears that water is the solvent of the silica, which, when recently produced or separated from its combina- tions by the action of the atmosphere on the earthy silicates, is presented in the modification most favourable for solution. The conclusions to be drawn from these experiments simplify very much our ideas of the silicification of wood shells and other organic bodies. Geologists hitherto have sought the explanation of the phenomena of petrifaction in the action of intense heat aided by pressure. It is clear, however, from the facts adduced by Dr Bowerbank, that such agencies could not have obtained during the silicification of his Alcyonium ; and further, it appears from the preservation of the most minute tissues in fossil woods, that pressure and extreme heat could not have been present. With regard to the preservation of the minute tissues in various fossil woods, especially the pines and araucarians, as shown in their radial sections, I had always found a difficulty VOL, II. 2D 206 Proceedings of the Royal Physical Society, in accounting for their preservation on any hypothesis, until an accidental phenomenon enabled me satisfactorily to account for it. While preparing chloride of gold, I had occasion to expose to the action of nitro-muriatic acid many small articles of jewellery which had been chased and variously-fashioned. After exposing them for many hours in the usual bath at the proper temperature, I was astonished to find that none of the articles had changed either in shape or size, although the solution showed the proper quantity of gold had been dis- solved. After decanting the acid, and washing well the jewellery with distilled water, and again adding a fresh quan- tity of aqua regia, I found that no further portions of gold were dissolved, but that the articles still retained their form and size. Some of the rings, which were chased in high re- lief, exhibited, as when put into the flask, every mark of the workman’s tool. The mystery was soon unriddled; the jewellery had all been alloyed largely with silver, every atom of which had been changed into a chloride, and as each atom of gold was dissolved, it was replaced by an atom of the worn silver, and so the form of each article was retained as when first put into the flask. On analysis, it was found that no particle of gold was left—all was converted into chloride of silver. This fortunate experiment at once enabled me to perceive, that when a ligneous atom was removed from a fossilising tree, an atom of silica was deposited, and hence the perfection with which the most minute structure was preserved. This being the last meeting of the Session, the Society adjourned to the commencement of next Winter Session. 207 APPENDIX Description of the Bones found in a “ Pict’s House” in the Island of Harris. Being Notes to Communication read 22d February 1860. By James M‘Bain, M.D., B.N. The first fragment is a portion of the right side of the upper jaw of a dog of tolerably large size, with a part of the molar bone attached ; the sectorial tooth and first tuberculated per- manent molar remain in situ; and there are sockets for the second and third premolars in front, with a socket for the last true molar behind. The sectorial tooth in the upper jaw of the Canidee is preceded by a deciduous tooth, and is therefore a premolar. The foramena present in this fragment are the inferior orbital foramen, the lachrymal canal, the spheno- palatine foramen for transmitting nerves and vessels to the nasal fossz, and a slightly developed palato-maxillary canal. The next specimen also belongs to the dog, and 1s a part of the left lower jaw; it corresponds in size with the portion of the upper jaw just described, and probably belonged to the same individual—it contains the last premolar, the sectorial tooth, the second true molar, and a socket for the third and last permanent molar. The sectorial tooth in the lower jaw is not preceded by a milk tooth as in the upper Jaw, and is in fact the first true molar. The dental formula of the Canide 1s i 3-3 1-1* 4—4° 38-38 by the Masseter muscle in the lower jaw of the dog does not extend to the under edge of the bone as it does in the fox, and would enable the comparative anatomist to distinguish to which of the species this fragment of the lower jaw belonged. The third specimen is the left tympanic bulla of the common seal (Calocephalus vitulinus), broken off at the fissure that divides the bulla from the mastoid process. The mastoid pro- cess is very slightly developed in the section of the Phocide 42. The depression formed 208 Proceedings of the Royal Physical Society. to which the Calocephalus vitulinus belongs, and seems to form a part of the osseous bulla. The fourth fragment is the basal portion of a horn of the red deer (Cervus elephas), with a part of the brow antler cut and fashioned by a sharp instru- ment. The fifth piece is a branchlet of the same species, cut and hacked apparently for the purpose of breaking it from the stem. The sixth fragment is a small bit of bone, evidently a portion of a lesser branchlet, which is also cut and polished. The seventh specimen is a portion of the left side of the lower jaw of the Bos longifrons, and contains the second and third deciduous molars and first permanent molar. The third de- ciduous molar has three large vertical columns, each with an inner and outer acute summit, the inner summits rising higher than the outer. ‘There are two accessory columns, one on each side of the outer surface of the large middle column, extending upwards to the base of its summit, with distinct concentric layers of crusta petrosa, enamel, and central den- tine. This three-columned deciduous tooth is known to be succeeded, between the second and third year, by a permanent premolar with only two columns. The loose teeth also belong to Bos longifrons ; the tooth marked No. 8 is the first true molar on the right side of the upper jaw; No. 9 is the last permanent molar on the left side; No. 10 is a third deciduous premolar on the right side; No. 11 is the second deciduous premolar, also on the right side, and all belonging to the upper jaw. The larger column in these deciduous premolars is situated posteriorly, and the smaller in front; which character serves to point out whether they belong to the right or left side of the jaw. The next two specimens likewise belong to Bos longifrons ; No. 12 is a cancellous horn core; and No. 13 is the distal portion of the right humerus. The species to which the name of Bos longifrons has been applied by Pro- fessor Owen is considered to be the original stock from which the present domesticated breed of small Highland cattle are derived. The fourteenth specimen is a portion of the right lower jaw of a small sheep, containing the two last premolars and first true molar, with sockets for the first premolar and for the incisors. The external opening of the inferior maxil- lary canal is situated nearly midway between the anterior Description of Bones found in a Pict’s House. 209 extremity and the first premolar socket. There is a slight metallic crust on the inner surface of the teeth, very distinct on the third tri-columnar premolar. The remaining fragment in this collection, No. 15, is the upper half or nearly two- thirds of the right middle metacarpal or cannon bone of a small-sized horse, from which the upper articulating surface is separated; the canal for the medullary vessels is recurrent, and placed close to the outer edge of the groove for the inter- nal splint bone. The fore cannon bone in the horse is more flattened in an antero-posterior direction than it is in the hinder extremity, as in the latter it is somewhat compressed at the sides, and more rounded. WDE set wWAire * 5 Po anne tice Re Ee a toe AP ids oy y OF Ay pity 3% Is ca ud ‘aigis — r of tee ~- @ PROCEEDINGS OF THE ROYAL PHYSICAL SOCIETY. NINETIETH SESSION, 1860-61. oo November 28, 1860.—Wittiam Rurnp, Esq., President, ins the Chair. Mr Colin S. Valentine, medical missionary, Dispensary, 39 Cowgate, was balloted for, and elected a non-resident member of the Society. The following donations to the Library were laid on the table, and thanks voted to the donors :— | 1. Proceedings of the Literary and Philosophical Society of Liverpool, for Session 1859-60, No. 14.—From the Society. 2. Canadian Journal, Toronto, Nos. 27 and 28, for May and July 1860.—F rom the Canadian Institute, Toronto. 3. Proceedings of the Royal Institution of Great Britain, Part x., November 1859-July 1860 ; London.—From the Royal Institution of Great Britain.. 4. Proceedings of the Zoological Society of London, 1860, Part i., January-March ; Part ii., March-June.—From the Society. 5. Memoirs of the Literary and Philosophical Society of Manchester, Second Series, Vol. xv., Part ii., 1860. 6. Proceedings of the Literary and Philosophical Society of Manchester, 1858-59, No. 1.— 10% the Society. | Wititram Ruiyp, Esq., Segoe then delivered the Opening Ad- dress :-— GENTLEMEN,—I have to congratulate the Society this evening on again assembling to commence another session, and with the prospect of having this session filled up with a series of as interesting and instructive communications as characterised the one that is past. On this occasion the congratulations to the meeting would be unalloyed, were it not that we have to deplore the loss of one of our office-bearers, whose punctual presence here, not VOL. TI. 2 2 &E 212 Proceedings of the Itoyal Physical Society. only on the opening nights, but on all occasions, was always to be depended upon, and ever hailed with pleasure and confi- dence. Iam sure it must be the universal feeling of the members, that in the decease of Mr William Oliphant, the treasurer, the Society bas sustained a loss which will be deeply felt, and which cannot readily be replaced, while every individual has to mourn the loss of a personal friend. Carefully and liberally educated, and at first intended for one of the learned professions, the naturally delicate state of Mr Oliphant’s constitution prevented him from prosecuting his original intention; but he still chose a walk of life which gave scope to his love of and desire for knowledge, and as a publisher he became the successful diffuser, as well as in several instances the patron and kind friend, of those engaged in the pursuit of literature and science. Mr Oh- _ phant became a member of the Royal Physical Society in August 1828, and was thus in connection with it for a period of thirty-two years. A few years after his entrance, he was requested to undertake the duties of occasional secretary, and from 1844 to 1848 he acted as secretary. For the last ten years, as you all know, he fulfilled the duties of trea- surer. Under all the phases which this Society has passed through, from the period mentioned,—1in its prosperity, in its difficulties, in its temporary decline, and again in its com- plete revival,—Mr Oliphant tenderly nursed it, husbanded its funds, preserved its library, and found for the Society this local habitation, when it removed from its apartments within the University ; and all this was accomplished in that quiet, unostentatious, unobtrusive way, which was so character- istic of his nature. His voice was never heard amongst us but in the gentlest and most appropriate suggestions—he never obtruded but to conciliate, to oblige, and to guide by his advice, which was always sound and considerate. Not only this Society, but society at large, must feel the loss of such a man; for it is not those who make most noise, and take the most conspicuous parts in society, who are in reality the main stay, and strength, and ornaments of social life, but such a genuine, highly-principled, unassuming, yet active, benevolent, and altogether estimable character as President’s Address. 213 Mr Oliphant. You are all aware, too, what an interest Mr Oliphant took in our scientific pursuits, and that it was through him, in the first instance, that an introduction was obtained to the Calabar missionaries, whose contributions to the zoology of Western Africa have afforded so many interesting communications. During the recess, another and venerable member of our Society has also paid the debt of nature,—Mr Alexander Rose, long a well-known lecturer on geology and mineralogy in this city, who, as often as the growing infirmities of a good old age would permit, was always a welcome and re- spected member among us. Mr Rose, a native of Dingwall, Ross-shire, not far removed from the birth-place of another of our late lamented and celebrated associates, Mr Hugh Miller, was also, like him, a self-taught geologist and man of science—if it may not be said that every man of science is, in a great measure, self-taught. Mr Rose in early life became a citizen of Edinburgh ; and, after some years, re- linquishing an art in which he was both expert and inge- nious,* he resolved to follow the irresistible bent of his taste and inclinations, and in time became a celebrated practical mineralogist and geologist, He, too, was characterised by his unassuming and genial disposition; and there are not a few of his attached friends and former pupils who can bear testimony to his suavity of manners, and the readiness and ability with which he was ever glad to communicate his stores of knowledge. Mr Rhind then referred to the beautiful Ordnance maps of the county of Edinburgh now before the Society, and observed that it was no small pleasure to find every inch of ground which several of us have gone over again and again, ~so accurately and so artistically displayed in one compre- hensive view before us. To those who many years ago began their studies in the only field where real knowledge can be obtained,—in the open field of nature,—such maps would have been invaluable. What labour, and doubts, and * Mr Rose was originally a turner of wood and ivory. He was much em- ployed by the late Sir John Leslie in the construction of his many meteoro- logical instruments. 214 Proceedings of the Royal Physical Society. mistakes would they not have anticipated ! and yet, perhaps, the pleasure of working one’s own way, and gleaning infor- mation painfully and almost in the dark, afforded more real enjoyment than even to get information thus ready pre- pared and perfected. The whole district of Edinburghshire is exclusively a coal-field, forming a portion of that great Paleeozoic deposit which occupies the basins of the Firths of Forth and Clyde, extending from sea to sea on the east and west. A sketch of the filling up of this great basin or open sea, from the commencement of the Carboniferous era to its close, and the elevation of the whole by the intrusion of trap-rocks, was then given,—the total absence of all appear- ances of subsequent formations, from the Coal to the Ter- tiaries inclusive, in this district,—then the numerous traces of the glacial operations visible in the drift,—the evidences of a greater extension of the present estuary of the Forth at the close of this glacial period,—and the movements and changes of level, which probably had a considerable effect in moulding the present aspect of the district posterior to the glacial deposits. The earliest notices of the working of coal in this district, and probably in Britain, occur in char- ters obtained by the monks of Newhbattle to dig coals on the Pinkie Burn, near Tranent, in the years 1200 and 1284. But it was several centuries after this before coal came into general use. We read of frequent fires occurring in HKdin- burgh from the ignition of stacks of heather, furze, and peat, which it was the practice of the citizens to collect and carefully pile up in the areas and closes for fuel. And so late as the year 1560, robberies were so common on the streets in the dark winter nights, that a rope was tied across the principal thoroughfares, to which a bowat or lantern was suspended in the centre, containing a single tallow candle, which “ paled its ineffectual fire,” where now, in the same localities, gas blazes, and innumerable coal fires enliven the gloom of the winter nights. It is well known that Newcastle coal was prohibited to be used within the city of London by act of Parliament, on account of its “‘ noxious, sulphureous, and pestilent smoke ;” while at the present day no less than seventy millions of tons of coals are raised President's Address. 215 in Britain. A small portion of this is exported, but the great bulk is used for domestic purposes and manufactures, —for animating the giant arm of the steam-engine, and for sending our steam-ships over every region of the globe. The present aspect of the county was next alluded to,—its division into three alluvial valleys, watered by three rivers which flow into the estuary of the Firth,—the Pentland range of hills, their diversified scenery,—and the remarkable basaltic rocks surrounding and forming the basis on which the city is built. There are no means of knowing what was the condition of the local atmosphere of Mid-Lothian in former times—at periods when the country was more densely covered with wood, when the ancient forests of Scotland still remained, when the surface of the soil was only par- tially cleared and cultivated, and imperfectly drained, and when marshes and lochs were greatly more abundant than they are at present. In the absence of actual facts, people are apt to draw on their imaginations and feelings; and it depends a good deal on the individual temperament whether we hear that the seasons are become much more severe and ungenial, or warmer and drier, than they were in bygone days. It was only towards the end of last century that scientific instruments were employed to indicate the climate of the country. From those begun by Professor Playfair in 1771, and others, continued down to the present day, it appears pretty evident that no change of climate has taken place during the last ninety years. Considerable varieties of seasons occur ; the general or normal was pointed out, and the occasional or abnormal, with their distinctive peculiarities, and the great leading or general causes of dif- ference, traced to the predominating power of the south- west and north-east air currents,—the predominance of one or the other forming the main cause of the varieties of sea- sons,—and to the influence of the great Gulf Stream, which flows past the British Isles. Local ameliorations of climate by drainage, cultivation of the soil, protection of plantings, &e., while they are of the greatest importance to the agri- culturist and in a sanitary point of view, would appear to be too small to affect the general climatal averages. The 216 Proceedings of the Royal Physical Society. mean annual temperature of the lower portion of the county, embracing a: series of years, may be stated at 47-2 Fabhr. ; the rain-fall 24:6 inches. The mean annual temperature of the city of Edinburgh, for the last three years previous to 1860, is 48°:3 Fahr., by the lists of the Meteorological So- ciety. This is equal to if not higher than the annual tempe- rature of any of the Scottish towns, and only 2° lower than London. -The annual rain-fall. at Greenock, on the west coast, is two-thirds more than that of Mid-Lothian. Mr Rhind concluded by recommending to the members of the Society, of whom there were several eminent in the various departments of natural history, to combine their labours in a complete investigation of the physical history of the county. . We owe much, he said, to the labours of our pre- decessors in this respect ; and itis but just that we should endeavour to do something for those who are to succeed us. A vote of thanks was unanimously given to Mr Rhind for his address, and his valuable services while President of the Society, his term of service having now drawn toa close. . The Secretary was instructed to engross in the minutes of the meeting portions of the President’s address referring to the death of Mr William Oliphant; and to send an extract of the minute to his widow, Mrs Oliphant, as a mark of the Society’s respect for the memory of. its late member and office-bearer, and of sympathy with her in her bereavement. The following communications were then read :— I. Observations on British Zoophytes and Protozoa. (1.) Notice of Ophryodendron abietina (Corethria sertulariz). (2.) On the Reproductive System of Chrysaora. By T. Strernitn Wrieut, M.D. (1.) On Ophryodendron abietina.—Amongst the lower classes of animals, and especially in the Protozoa, the lowest class, numerous and very striking examples of homomor- phism occur. ‘ Homomorphism” is an exact simi- larity in form between animals of different classes, without any corresponding resemblance in their anatomical struc- ture. Some of these examples may be considered fanciful, as the likeness between Lacrymaria olor and the fossil Observations on British Zoophytes. 217° reptile Plesiosaurus. But in others the homomorphism is so perfect, that animals belonging to the lower class were long confounded by the most eminent zoologists with those: _of a higher class. Thus, various species of the Fora- menifera were classed amongst the Cephalopoda. The shells of many of the Foramensfera are, indeed, exact copies of those of Cephalopoda, both recent and fossil. The recent Nautilus and Argonaut, and the fossil Bacu- lite, Orthoceratite, Hamite, and Ammonite, find their representatives in the microscopic Nwmulina, Polystomelia, Dentalia, Cristellaria, and Rotalina. The shells of the for- mer are inhabited by the highly organised cuttle-fishes ; those of the latter by creatures which can scarcely be said to possess any organization. The chambers of their shells are filled with a glairy living mass, which streams like a fluid in and out through the innumerable minute pores with which the shells are pierced. The streams unite together to form widely-spread meshes and expansions, which en- velope, absorb, and digest smaller living beings coming in contact with them, and on which the animals move, or rather flow along. But although the forameniferous ani- mal is a mere fluid mass, destitute not only of organs and stomach, but even of the simplest cellular structure, it is yet capable of exercising the most important functions of life—motion, nutrition, and reproduction,—and of erecting for itself edifices mathematically correct in design, which arrest the eye by their exceeding beauty of form and orna- mentation, and which, deserted by their tenants through successive ages, have formed no inconsiderable part of the solid frame-work of our globe. fucicola having fewer tentacles (Sars). Generative sacs attached to reproductive polyp with rudi- Hydractinia mentary mouth and tentacles, as in : : \ echinala. 278 Proceedings of the Royal Physical Soctety. Generative sacs: attached to reproductive polyp without Eudendrivm mouth or tentacles ; summit of polyp surmounted by a ¢ confertwm cluster of large thread-cells, as in ; (Alder). Generative sacs or ri etal attached to reproductive ) Cionistes, polyp without mouth, tentacles, or cluster of thread- Sertularia, cells, as in Campanularia. Reproductive polyp dorided longitudinally eee several) Eudendriwm portions, each surmounted by its cluster of large thread- | arbusculum cells ; sperm-sacs formed, as in Hydra, by simple dila- 7 (T.S. W.), tation of the ectoderm ; "each division of polyp trans- | E. capillare ? formed into a “ moniliform” Sperm-sac, as in . ; (Alder). Atractylis (T.S. W.), Hydractinia (Alder and a. W.), Cordylophora (Allman). Generative sacs or medusoids attached to the polypary, as in , ‘ ; It will thus be seen that there is a very gradual transition from the alimentary polyp to the reproductive polyp, and from the latter to the simple generative sac. Professor All- man’s term “ blastostyle,” applied to the reproductive polyp, is apt to mislead, as it indicates that the alimentary and re- productive polyps are not homologous parts. Still more decidedly does that accomplished naturalist confuse the homology of these parts by applying the same term to the branched pedicle of the aggregated generative sacs of Tubu- laria tndivisa, which is merely formed of the conjoined and elongated pedicles of the individual sacs. It is impossible to construct any classification of the Hy- droid Zoophytes on the form or position of their generative sacs or medusoids, as these vary not only in different species of the same genus, but also in males and females of the game species. Thus, in Hudendriwm rameum the sperm-sacs are moniliform, the egg-sacs single ; the former are attached to the alimentary polyp, the latter to the polyp and also to the polypary. In Hydractinia, although the generative sacs generally spring from the reproductive polyps, they are also found attached to the polypary; and in a most interesting species of this genus lately discovered by Mr Alder, medu- soids spring from the latter part of the zoophyte. In Atrac- tylis ramosa, T.S8.W. (Eudendrium ramosum, Van. Ben.), the medusoids, the males and females of which differ in shape, spring from the polyps, from club-shaped bodies, and from Appendix to Cionistes reticularis. 279 the polypary ; in other species of Atractylis they arise from the reticulated base of the zoophyte. In certain species of the genera Sertularia and Campanularia, marsupial forms occur which bear no homological relation to each other. The gradual transition in the Hydroide from the simple generative sac to the perfect Medusa is exceedingly interest- ing. I attempt to indicate it in the following sketch :— Generative elements (spermatozoa or ova) contained in a simple generative sac or dilatation of the ectoderm; pla- \ Hydra. centa formed of endodermal floor of sac, Placenta protruding into generative sac, and forming ‘‘ spadix” (Allman) sur- rounded by generative elements, Coryne. Hydractinia, Pen ne rative sac. Campanularia lacaerta (male). ee Hudendrium —or branched and permeating them, —or folding round single ovum, rameum (fe- male). Eudendrium ) Generativesac become a pe- duncle (““ma- nubrium,”’ Allman). Placenta adherent to summit of genera- tive sac; summit of sac furnished with cluster of large thread-cells ; sac the equivalent of the Sa of | EL. confertum Coryne gravata, Summit of sperm-sac fares hed with a row of tentacles indicating the pre- sence of a non-differentiated subum- brella, . ‘ Generative sac transformed into a ra) arbusculum (male). (female).* present, but not differ- entiated. walking medusoid ; peduncle furnished with branched tentacles, as in Bou- gainvillea ; subumbrella not differen- tiated, its presence indicated by eye- specks and otolitks; umbrella absent, Ovisae fixed, enclosed in a meiorentitcd Laomedea Eleutheria, medusoid of Clavatella (Hincks). Subumbrella differen- tiated. Laomedea Lovent male). Subumbrella subumbrella with lateral and circular > Loveni (fe- \ canals and tentacles, male). * In the ovisac of H. confertum (see figure in margin), which I have had an opportunity of examining through the kindness of Mr Alder, the endoderm and ectoderm at first adhere together at the summit of the sac, and at this point a few large thread-cells occur in the ecto- derm. A similar occurrence of adhesion and thread-cells is found in the sperm-sac of #. arbusculum, and also in the false and mouthless peduncle of the medusoid of Coryne gravata. 280 Proceedings of the Royal Physical Society. Sperm-sac surmounted with large thread- cells, and forming the peduncle of a( Coryne gra- Umbrella dif- fixed medusoid with differentiated( vata. ferentiated. subumbrella and umbrella, Peduncle or alimentary ; Medusa of olyp and ge- Imperfect free medusa; peduncle with ek Lcd tubular mouth, and ‘united with a ee Bee Pa a Peat kha ; ; 2 single-cavitied generative sac ys MLA Engen each other (see post). duncle four-tentacled or lipped, and] ramosa (fe- Gelerative male). : 8 i Turris neglec- acs differen ta, the Me- tiated from dusa of Ola- alimentary vula Gossii | POlyp, but si- (female) tuated on it. lescing into four, which are situated alternately with the tentacles or lips, Perfect free Medusa of low type; pe- dunele four-lipped or tentacled, with eight distinct generative sacs, one placed on the side of each lip, Oceania epi- scopalis, /Peduncle and Bougainvillea Britanwica, the Medusa Perfect free Medusa of low type; pe-| of Atractylis containing eight generative sacs coa- generative Perfect free Medusa of higher type; Mediisa of sacs differen - peduncle four-lipped or tentacled ; (~ Tiabe tiated. Ali- eight generative sacs, one on each + lai mentary po- side of lateral canals, Me ae lyp taking no part in re- production. Generative ; sacs on sepa- Medusa of highest type, with 4-6 lips ) Stomobra- rate canals ; and 8-12 lateral canals, each cn chium octo- / two canals carrying a single generative sac, costatum. correspond- ing to each lip. Of the generation of Stomobrachiwm we know nothing. Claparéde has shown that gymnophthalmatous Medusee may produce Medusee without the intervention of the polypoid phase ; but it is impossible to draw any line of distinction between a Medusa and the medusoid phase of the Hydroid polyp. Zubularia indivisa produces its young as perfect polyps without the intervention of the planuloid phase, Clava with the intervention of that phase. In the life-history of Appendix to Cionistes reticularis. 281 the Hydroide, any phase—planuloid, polypoid, or medusoid —may be absent. The perfect several-lipped Medusa appears to be a sym- metrical organism composed of eight or more elements, each element corresponding to the half of a lip. Hach of these elements is composed of three subelements, the alimentary, reproductive, and prehensile, any of which may be sup- pressed, or unite with others of different value on the same element, or of the same value belonging to neighbouring elements. Thus, in Sarsia the peduncle appears to consist of a single alimentary subelement, and the single reproduc- tive element or generative sac extends around and along the whole of it except the single trumpet-shaped lip. This lip is occasionally placed on one side and at some distance from the extremity of the peduncle, indicating the asymmetrical character of the latter organ in this genus. In Huphysa and Hleutheria the ovisacs coalesce, and are placed within and at the base of the peduncle. Steenstrupia and Saphenia furnish examples of the suppression of certain of the marginal ten- tacles or prehensile subelements, and the exaggeration of others. The Polyp of the Hydroid Zoophyte must also be con- sidered as composed of one or more elemental zooids. Thus we have the zooid of asingle element in the ‘tentacular polyp’ of Hydractuma ; the zooid of two elements in the two-ten- tacled and two-lipped Lar Sabellarum (Gosse) (Pl. XII. fig. 8), and in the minute two-lipped and non-tentacled polyp which occurs on the Antennularias and others; the zooid of several elements in the five-lipped polyp of Trichydra (T. 8. W.); that of many elements in the polyp of Tubula- ria indivisa, which I have elsewhere shown to be formed by the confluence of the several distinct tubes of which the po- lypary or coenosarc is composed, each of which tubes may be traced, by its coloured endodermal ridges, to the mouth of the polyp, and bears its own system of tentacles and repro- ductive apparatus. _ The compound character of the polypary is also seen in Halecium and Antennularia, and in a very beautiful manner in the very early state of Sertularia pumila, which (after it 282 Proceedings of the Royal Physical Society. had been kept a few days in fresh water) I have figured with the camera in Pl. XII. fig. 12. Its resemblance to Carus’s figure of the Medusa, Cunina globosa (Esch.), which I have copied in fig. 11, is very striking. As the Medusa is a multiplex organism, we must inquire how far it is homologous with the generative sac of the Hy- droid Zoophyte. Prof. Allman, in his paper on Cordylophora (Phil. Trans. vol. cxli.), advanced the doctrine that the generative sac was homologous with the whole Medusa—a doctrine based upon an erroneous conception of the cavity in which the generative elements arecontained. Ina ‘Note on Dicecious Reproduction in Zoophytes” (Edin. New Phil. Jour., vol. iv. p- 88), I stated that “the reproductive buds [generative sacs] (of Coryne) were filled with ova developed from the exterior of a hollow central stalk, a diverticulum of the alimentary canal;” and further, ‘‘ The peduncle of the Medusa-bud [or budded Medusa] appears to me to be homo- logous with the entire reproductive capsule [generative sac] of Coryne glandulosa, &c.” This view is now adopted by Prof. Allman, who writes, in ‘ Annals of Natural History,” (vol. vi. ser. 3, p. 4), “‘ The manubrium is the whole of the ‘peduncle,’ ‘stomach,’ or by whatever other name it may be called, which depends from the centre of the umbrella in a Medusa or medusoid ; and I apply the same term to what I consider the homologous part in a sporosac, namely, the whole sporosac minus the ectotheca and mesotheca.” Now, the ‘ sporosac,’ less the ‘ ectotheca’ and ‘mesotheca,’ is the simple generative sac, which, therefore, Prof. Allman has agreed with me in considering homologous with the peduncle. But I would now very much modify the above view. We must keep in mind that each of the eight elements of a medusoid has three distinct functional subelements; that the single reproductive subelement of the Medusa exists, as in Stomobrachium, uncombined ; that where the peduncle is the reproductive organ of a free Medusa, as in Sarsza, it _ consists of two subelements of different function combined, each exercising its separate function, alimentative or repro- ductive; that an organ composed of a single subelement (a — Appendix to Hydractinia. 283 generative one) having only one function, cannot be homo- logous with one composed of two subelements (peduncle of Sarsia), each having its distinct function, or with an organ of sixteen subelements (peduncle of Bougainvillea), eight of which are alimentary and eight reproductive. I would therefore now state— That the simple generative sac of Coryne is homologous with the reproductive subelement or single generative sac as it exists on the lateral canal of Stomobrachium. That the peduncle-like sac of Hudendrium confertum 1s homologous with the reproductive subelement in the pe- duncle of Sarsta—not with the whole peduncle. That where the generative sac evidently consists of many subelements, as in Tubularia larynx and Sertularia fallax (evidenced by the four summit-lips or lobes, the symmetri- cal character of each of which indicates it to be composed of two subelements), it is homologous with the reproductive subelements in the octopartite peduncle of Bougainvillea, or, rather, with the eight coalescing reproductive subele- ments of Hleutheria. I consider that a four-lobed or branched state of the pla- centa or spadix indicates a multipartite constitution of the generative sac, and not a rudimentary medusoid form of that organ; for we have, in the fixed female medusoid of Lao- medea Lovent, a four-lobed condition of the placenta in the peduncle-like ovisac, with the existence of a well-differen- tiated subumbrella and lateral and circular canals. My space will not allow me to illustrate the homological relations which exist between the polypary (or ccenosarc) and the polypidom on the one hand, and the subumbrella and umbrella on the other. This must be reserved for a future occasion, when I hope to fill up the gaps in this rough and incomplete sketch of some of the morphological relations of the Hydroide and their Meduse. Appendix to Hydractinia, printed at vol. i. p. 192. In the “ Annals of Natural History ” (vol. iv. ser. 3. p. 50) | Prof. Ailman has remarked, with regard to Hydractinia, that “the solid chitinous polypary [polypidom] is covered VOL, II. 20 284 Proceedings of the Royal Physical Society. externally by the ccenosare [polypary], thus reminding us of the sclerobasic corallum of some of the Actinozoa.” This doctrine had been previously promulgated by Quatrefages (Ann. des Sc. Nat., xx. 232), who considered the polypidom to be an endoskeleton deposited in the substance of the polypary, like the solid axis of Gorgonia. If this view were correct, it would not only remove Hydractinia from the Tubulariade, but would segregate it from the whole of the Hydroid Zoophytes, not one of which is destitute of an investing polypidom. ~ In the “ Edinb. Phil. Journal” for April 1857, I stated, in a paper on Hydractinia, my conviction of the incorrectness of Quatrefages’s opinion, and that the mode of secretion of the polypidom of Hydractinia did not. differ from that of the rest of the Tubulariade, as was seen in the development of its young and its propagation by stolons. Since then I have come to the following conclusions, after the examina- tion of a very large number of specimens, some hatched from the egg and adherent to glass, others removed as cut- tings from adult specimens and transplanted on glass, to which they readily grow, and others removed entire from the shell of the Pagurus by acid, and put up in spirit or balsam. The polypidom and polypary are found in the following forms, all of which are frequently combined in the same specimen :— 1. An open network of delicate chitinous tubes without spines, enclosing a polypary composed of several combined endodermal tubes surrounded by a single layer of ectoderm. Found in very young specimens, or in old ones growing on protected parts of the shell. (Analogous to Clava repens (mihi), the C. discreta of Allman.) 2. An open network as in the last; the tubes of thick brown chitine, with single hollow spines rising from a single tube, or from the confluence of four tubes. 3. A close reticulate plate, as in Clava cornea (mihi) and CO. membranacea (rihi), formed from states 1 or 2 by the continual filling-up of the meshes by anastomosing branches, with or without spines. 4, A fleshy plate of ectoderm permeated by a network of Appendix to Hydractinia. 285 endodermal tubes, and covered above and below by a deli- cate investment of chitine. Found on the growing borders of the zoophyte, and especially in cuttings of old specimens transferred to glass. The spines are composed of one tube or many parallel tubes: they may be single (PI. XII. fig. 4), and developed on a single tube of the polypidom, like those of Podocoryne Jucicola; single at their summits and of several tubes at their base (figs. 5 and 6) ; composed entirely of several (8-12) conjoined tubes (fig. 7); reticulate by the lateral anasto- mosis of their tubes; or consisting of long ridges of tubes reared against each other. The polyps spring from one or several confluent tubes of the polypary ; they are covered at their origin, and for a little distance above it, by a delicate prolongation of the poly- pidom. This may be detected by dyeing the whole zoophyte with tincture of kino, which gives different tints to its chitinous and fleshy elements, or by steeping it alternately in spirit and water, when the coverings of the polyps and polypary become inflated as in figs. 2 and 3. The polyps are of several shapes and functions, which I have described in the paper cited above. It will be sufficient to enumerate them here :— 1. Alimentary polyps, with mouth and tentacles. 2. Reproductive polyps, with rudimentary mouth and tentacles. 3. Spiral polyps—a modification of the last; generally barren (fig. 3). : Sessile generative sacs of thes polypary. . Tentacular polyps, or great tentacles of the polypary om 2). In the reproductive organs of Hydractinia there is a gradual transition from the reproductive polyp to the sessile generative sac; the polyp loses its dot-like mouth, its ten- tacles, its head or upper part, and finally dwindles down to a mere sperm-sac. This change is generally seen in those specimens which have long been kept in captivity. In these specimens, too, many of the alimentary polyps are often converted into large inflated sacs destitute of mouth and 286 Proceedings of the Royal Physical Society. tentacles, and showing through their parietes white longi- tudinal ridges, which indicate the number of zooid elements of which they are composed. In the natural history of this remarkable zoophyte there are other points of peculiar interest, which, having already described, I need only mention here: the slow development and unique shape of the planuloid larva; the powerful muscular structure of the polyps, especially the spiral ones, the office of which last has yet to be discovered; and the intimate sympathy and combined action which subsist be- tween the various parts of the whole animal. III. Notes on Deep Sea Soundings. By E. W. Dusuc,* M.D., R.N. : Communicated by Mr James B. Davis. The deposits now forming at the bottom of the ocean possess a peculiar interest from a zoological as well as from a geological point of view, especially when we consider the importance of the natural processes upon which they are capable of throwing light. It is only of late years, however, that we have been en- abled with any degree of accuracy to sound the vast depths of the ocean, to map out the varying configuration of the solid substrata, and to examine into the nature of the latter. We owe this in great measure to the invention of an im- proved form of sounding apparatus by Mr Brooke of the United States Navy. Specimens thus obtained from great depths were sent to Professor Ehrenberg of Berlin, and Professor Bailey of New York. The latter submitted samples of the sea bottom from that part of the North Atlantic which covers the telegraph plateau to microscopical examination, and found them to be filled with minute organisms, and to contain neither sand nor gravel. The organisms were mainly calcareous, consist- ing of the shells of various genera of Moraminifera (Poly- thalamia of Ehrenberg). ‘There were besides a small number of the siliceous shields of diatoms. * T observe, with much regret, a notice of the death of Dr Dubuc on board H.M.S. Cossack, at the Cape of Good Hope, on the 10th of January 1862, at the early age of 24.—J. B. D. Notes on Deep Sea Soundings. 280 Owen mentions polycistine as also occurring in speci- mens from the bottom of the North Atlantic. Through the kindness of T. C. Scott, Hsq., R.N., I am en- abled to lay before you various samples, likewise, from the telegraph plateau, the result of soundings made in H.M.S. Bulldog. They are of a light yellow colour, and effervesce strongly with acid. In the microscopical slides before you, you will readily perceive numbers of calcareous foraminifers of genera re- sembling Rotalia and others; besides there are here and there, but usually in fragments, the beautiful tessellated siliceous shields of coscinodiscus. It is a curious circumstance, that, in many instances the polythalamie were brought up from the same locality with the soft parts still preserved. Lieutenant Maury conjectures that perhaps the bodies of persons buried in the deep sea may in like manner be preserved for long periods, the great pressure to which they are subjected preventing de- composition, by opposing an ‘obstacle to the separation of gaseous bodies. Prior to the laying down of the submarine cable between Kurrachee in Scinde and Muscat in Arabia, a number of soundings were made along the proposed route by Captain Pullen in the Cyclops. I obtained two specimens which were brought up, one from a depth of about 200, the other from about 700 fathoms, off the south coast of Beloochistan. The sea is very deep in this locality, especially towards the sea of Oman which parts Beloochistan from Arabia. While the temperature of the air where these soundings were being taken was almost tropical in character, the thermometer attached to the sounding apparatus showed that the tem- perature at the bottom of the ocean was under 40° Fahr. The matter collected at 200 fathoms resembles bluish clay. It does not effervesce with acid, and under the micro- scope it presents toview a number of clear angular fragments, many of them undoubtedly of mineral origin. The calcareous foraminifers so plentiful in the deposits from the North Atlantic are here very rare. After diligent search I could only recognise two or three. Here and there 268 Proceedings of the Royal Physical Society. we meet with spicule of sponges. There are also present the broken, and, in some cases, perfect valves of the coscino- discus, but any other organisms are too undecided to pro- nounce upon. The sample from 700 fathoms is still less aivundanied in such objects. Deep sea soundings have now been effected in various parts of the world. Professor Bailey examined specimens brought up in Lat. 56° 46’ N., Long. 168° 18’ E., the depths being respectively 900, 1700, and 2700 fathoms. They yielded a variable proportion of mineral matter, diminishing as the depth increased, a quantity of the silice- ous shields of diatoms including coscinodiscus and numerous spicule, but not a fragment of any of the calcareous poly- thalamia. The beautiful siliceous polycistine were also observed. A specimen brought up by Brook’s sounding-rod in the coral sea, in Lat. 13° 8., Long. 162° E., from the reported depth of 2150 fathoms, afforded many spicule of sponges, a very few diatoms including the coscinodiscus, some. polycis- tine, and a very few fragments and only one perfect poly- thalamia shell. The deposits now forming at the bottom of the North Atlantic, therefore, differ notably from the latter, in contain- ing so many polythalamie. Perhaps at some future date we may be able to discover some connection between the various minute forms and the localities at which they occur, as well as the currents flowing in the waters below which they are met with. At present we must content ourselves with accumulating observations. IV. Further Notice of the Herring and Sprat Fishery of the Firth of Forth. By Groner Loaan, Esq., Convener of the Society’s Committee on Marine Zoology. In continuation of the remarks upon the herring and sprat fishery of the Firth of Forth, submitted to the Society in the Report of their Committee on Marine Zoology, on 24th January last, the Convener pursued a careful exami- nation of the fish brought to market daily, through the The Herring and Sprat Fishery of the Firth of Forth. 289 months of February and March, and he found that any appearance of herring fry gradually ceased, while the sprat, Clupea sprattus, was most abundant; even the occurrence of young herrings, 7.e., fish above five inches long, was rare, until about the beginning of March, when for a day or two they again made their appearance among the sprats in some numbers, and then entirely disappeared. About the 10th of March considerable quantities of very fine pilchards, Clupea pilchardus, the gipsy herring, were brought to market, along with herrings and sprats, and the writer of this notice examined seme dozens of them. ‘The largest were fully eight inches in length, and might readily be mistaken for herrings, although upon a closer inspection the general aspect of the fish showed marked distinctions even to the eye,—being more slim and delicate, having smaller scales, more firmly attached, and, when compared side by side with the herring, giving one the impression that it might be a young herring which had only just attained maturity. The marked distinctions between this fish and the herring need not be repeated ; Dr Parnell states them most accu- rately, and says that it had been of late (when he wrote in 1839) a very rare fish in the Firth of Forth, as well as along the whole eastern coast of Scotland; while, about thirty years previous, it had been as plentiful as the common herring ; and that no specimen had then been caught in the Firth since the year 1816. He adds that the pilchard is easily distinguished from the herring, sprat, and white- bait, by the position of the dorsal fin. If either of the three latter fish be suspended by the anterior dorsal rays, the head will be observed to dip considerably ; whereas, if the pilchard be thus suspended, the body will preserve an equilibrium. ‘The writer found that the fishwomen thor- oughly apprehended this last-mentioned characteristic of the pilchard as the one most obvious and unmistakeable by an observer, and were quite aware of the nature of the fish they were bringing to market as distinguished from the herring, stating, that by many people they were not so much liked as food. Many of the specimens were opened by the writer, for the purpose of ascertaining the existence 290 . Proceedings of the Royal Physical Society. of milt and roe, but not the slightest appearance of the latter could be found, the milt being, however, distinctly seen in a rudimentary state. These fish, when dressed for table, were found to be in very fine condition, although differing in flavour from the herring, and to some tastes, as the fishwomen had said, not so palatable. It was matter of regret that the pilchards were only caught in large quantity for a few days in March, although sparingly among herring through the winter; and this partial appear- ance in the Firth in the present season corroborates Yar- rell’s statements on the subject. As respects the spawning of the herring, the best authorities hitherto, although with some doubt and misgiving, have assigned the periods of March and October as the times of deposit. The writer has, during the past winter, found the herrings taken in the Firth of Forth to be either gravid with spawn and milt, or else spent fish, continuously from the month of November until the end of March, during the whole period that the fish was sought after and taken; and he sees no reason to doubt that during the whole period that the herring is found upon our shores, it is there for the purpose of depo- siting its spawn, which not improbably occurs the whole year round. Mr J. M. Mitchell exhibited several specimens of the sprat or garvie herring, Clupea sprattus, with well developed milt and roe. These fish were taken above Queensferry about the end of March. V. Notice of a Specimen of the Syngnathus Aiquoreus, taken in a lobster- net off Inchkeith, 17th April 1861. By Witiiam S. Youne, Esq. Specific Characters.—P. ©. and A. fins wanting; dorsal and vent nearly in middle of entire length, resting on eleven rings, three of which belong to the tail. Description of this specimen: 21 inches in length; head — jsth of whole length. From point of snout to the orbit, 1 inch; from orbit to extremity of operculum, ?th inch; from end of snout to first dorsal ray, 83 inches; from last Notice of the Syngnathus AXquoreus. 291 dorsal ray to extremity of tail, 103th inches ; length of dorsal fin, 2? inches, with 39 rays resting on eleven rings, three of which belong to the tail. The trunk consists of 29 divisions or rings, and the tail of about 60 or 64; vent immediately under the twenty-seventh ray of the dorsal fin. Form of the trunk from the gill to the vent is octangular, and from the vent downwards quadrangular, towards the extremity somewhat flattened. I have given this description, as it differs somewhat from most of the descriptions of this fish. Jenyns and Yarrell give it rudimentary caudal rays, and Kaup six caudal rays. In this specimen I could not discover, even with the micro- scope, the faintest trace of a rudimentary ray, when not more than half an hour dead. Kaup says that this species has till now (1856) been found only in the south-west coast of Scotland, in Ireland, the Isle of Man, at Havre, and in Norway. He does not appear to be aware, as noticed by Dr Parnell, that prior to 1685 Sir Robert Sibbald obtained a specimen from the Firth of Forth; and within the last few years, Dr J. M‘Bain and Dr J. A. Smith each got speci- mens. The last is now in the Natural History Museum, College, Edinburgh. [As this fish has not been often distinguished or de- scribed, there are here added, for the sake of comparison, the notes formerly taken from the specimen examined by Dr Smith, and exhibited at the meeting of this Society, on 25th January 1860. These details were not included in the notice of the fish printed in the Proceedings, see page 139. Notes of the Aiquoreal Pipe Fish (Nerophis Aiquoreus), taken at the Isle of May. By Joun ALexanper Surry, M.D. Nerophis Aiquoreus, Kaup* ; Syngnathus cequoreus, Yar. The Alquoreal-Pipe Fish. The general colour of the fish is brownish-yellow, approaching to olive-green on the back. Pectoral, anal, and caudal fins awanting. * Catalogue of Lophobranchiate Fish in the Collection of the British Mu- |) seum, 1856, by Dr J. J. Kaup. : VOL. II. 2.P 292 Proceedings of the Royal Physical Society. Length, 20 inches full; 94th inches to vent from point of snout; and 10%ths inches from vent to point of tail. Length of head, 18thsinch. From snout to front of orbit, 3ths of an inch full; from thence to extremity of gill-cover (including the eye), 2ths of.an inch. Length from point of snout to commencement of dorsal fin, 7ths inches (the fin is 24 inches in length); and length from beginning of fin to extremity of tail 123ths inches. The termination of the fin is therefore nearly the middle point in the length of the body—the fin being in front of the middle of the fish. 4 The body, or portion of fish from head to vent, consists of 30 plates, rings, or divisions (the vent being situated in the thirtieth plate or division, and under the twenty-sixth ray of dorsal fin); and there are 64 or 65* plates or divisions from vent to end of tail; the transverse markings cease beyond vent. Dorsal fin has 39 fin rays, on eleven rings, and a very slight attachment to another in front, three of which rings succeed the anal ring, and therefore belong to the tail ; the fin commences at the latter part of the twenty- second transverse plate, and extends past the middle of the thirty-third plate or ring. These divisions and transverse plates are distinct, and the angles of the octangularly-shaped body are also tolerably distinct ; the dorsal one is not acute, but rather rounded, the ~ first and second lateral being the most distinct; these last, on each side, form, behind the vent, the distinct angles of the quadrilateral body, which also decreases considerably in size, and tapers gradually to the pointed extremity of tail.] VI. Crex porzana, Spotted Crake (specimen exhibited). By Jonn Atex. Smitu, M.D. This specimen of the Spotted Crake or Rail (Crea porzana) * Yarrell, in the first and second editions of his “ British Fishes,” erro- neously quotes from Montagu’s original description of this fish (Wern. Mem., vol. i. p. 85) the statement, that, from the vent to the extremity of the tail, this fish consists of ‘‘ about thirty-six plates,’ whereas, in Montagu’sdescrip- tion, it is stated to be “about sixty-six plates.’ This is probably merely a typographical error. =a Crex porzana. 293 was in beautiful plumage. Mr Charles Muirhead, Queen Street, informed Dr Smith that it was shot near Bathgate on the 17th of March. The bird is rare, or at least seldom seen in the neighbourhood; and this specimen is also in- teresting from the very early season of the year when it was killed. Montagu mentions having seen it in Devonshire “as early as the 14th of March.” It is generally considered to be migratory,—one of our regular summer visitors. Its allied species, the Corn Crake, does not visit us until the beginning of May. A vote of thanks was given to the Orricz-BEARERS, and the Society adjourned to the beginning of next winter session. 1 CTISAE ’ + “by ¢ MER PROCEEDINGS ROYAL PHYSICAL SOCIETY. NINETY-FIRST SESSION, 1861-62. Wednesday, November 27, 1861.—T. Stretuitt Wricur, M D., President, in the Chair. William Stevenson, Esq., Accountant, Dunse, was balloted for, and elected a non-resident member of the Society. The following donations to the Library were laid on the table, and thanks awarded to the donors :— 1. (1.) Transactions of the Royal Society of Edinburgh. 4to. Vol. xxii. Part 2., 1859-60. (2.) Appendix to the Makerstoun Magnetica] and Meteorological Observations. 4to. (3.) Proceedings of the Royal Society of Edinburgh. 8vo. Vol. iv., No. 50._-From the Society. 2. Proceedings of the Royal Society of London, Vol. xi., Nos. 43-45.— From the Society. 3. Observations on Temperature in connection with Vegetation. By J. H. Balfour, A.M., M.D. 8vo. 1861.—From the Author. 4. Proceedings of the Zoological Society of London. 8vo, 1860, Part 3, June to December; and 1861, Part 1, January to March. —From the Society. 5. Canadian Journal, Toronto, No. 32, March ; No. 34, July; and No. 35, September 1861.—From the Canadian Institute, Toronto. 6. On Canadian Caverns. By George D. Gibb, M.D.—From the Author. 7. The Canadian Naturalist and Geologist, and Proceedings of the Natural History Society of Montreal, Vol. vi., Nos. 1—5.—From the Society. Dr Wrateat then delivered the Opening Address :-— GENTLEMEN,—I have now to greet you on the commence- ment of the ninety-first session of the Royal Physical Society, which opens full of promise. Not only can we look back with satisfaction on the many valuable papers which have of late years been read at this table, and which, treasured up in our published proceedings, and disseminated through VOL, Il. 2@ 296 Proceedings of the Royal Physical Society. the scientific societies of this and other countries, are assist- ing to preserve for Edinburgh that high position which she has attained in science; but the billet of this evening shows that, in the ensuing session, we have much to look forward to, both from our young soldiers, whose spurs are yet a-win- ning, and from well-tried veterans, whose names for many a year have been ‘‘ familiar as household words” to the lips and pens of all those whom Natural History has taken for her own. Moreover, a highly respectable balance in the bank, and the continued influx of entrance-fees from new members, render us quite easy as to that commodity with- out which the highest literary and scientific attainments present but a pitiable appearance—so very easy, that a large number of our members, nearly all of us, have neglected for some years to pay our annual contributions. The Council have, however, considered it unadvisable that the property of the Society should any longer be carried about in the pockets of its members, and have directed that the arrears shall be collected, so that our available funds this year will be considerably increased. Since our last meeting, the Society has been deprived of the services of several useful and valuable members. One of them—Professor Shank More—has been removed by the hand of death. Ineed not in this place recount the history and attainments of one so well known as Professor More. The increasing infirmities of age had for some time prevented his taking any part in the business of the Society, but he never ceased to show an interest in its welfare. We have suffered a severe loss in the removal from Edinburgh of two of our most skilful workers—Mr Andrew Murray and Dr Cleland. To the love of scientific research, the forcible style, the skilful pencil, and the unceasing activity of Mr Murray, the first volume of our Proceedings owes the chief part of its attractions ; while his kindness of heart, and the ready interest he always took in the labours of his brethren, will long be remembered ~ by us with regret. I have no hesitation in stating that the papers which Dr Cleland has communicated to this Society, and elsewhere, have placed him in the highest ranks of science as an accomplished comparative anatomist, and we President's Address. 297 must hope that we may still be favoured by his assistance, although he may not often be able to come amongst us. The work of the Society for the last session has been well divided amongst the members. On the Vertebrata the papers consist of those of Dr Cleland on the articular pro- cesses of the Atlas and Axis; Dr M‘Bain on the anatomical distinctions between the skull of the Manatus senegalensis _ and a Manatus from the Bay of Honduras ; Mr Edwards on inflammation in fishes, in which he has determined that those animals are quite indifferent to the infliction of wounds; Mr Peach, of Wick, on the Argentine, Anchovy, and other fishes, and on the termination of the vertebrate column in the tails of the Salmon tribe; Mr J. M. Mitchell and Mr G. Logan on the natural history and fisheries of the Herring and the Sprat; Mr W. 8. Young on the Ciquorial pipe- fish and its specific distinctions. In Entomology, Mr R. T. Logan’s paper—on the occurrence of Vanessa polychlora and Cheimatobia borearea in Kdinburghshire. On the Celentrata two notices by Dr Strethill Wright—on reproduction in Chrysaora, and on Atractylis coccinea. On the Protozoa we have Dr M‘Bain’s notices of sponges from Shetland and else- where, together with his very valuable and interesting ex- position of Bowerbank’s recent discoveries and classification, and Dr Strethill Wright’s papers on reproduction in Ophryo- dendron, on Dendrophrya and Lecythia, and on Rhizopod structure, and his discovery of ova and spermatozoa in that class of animals. In Geology and Mineralogy several very important papers have been read, including Mr R. H. Tra- quair’s on the Trilobites of the Carboniferous Limestones of Fifeshire, accompanied by beautiful delineations of species. Mr Andrew Taylor on the exposure of the Liberton Old Red Sandstone conglomerate bed at Newington; and Mr John 8. Livingston on the state of our knowledge respecting meta- morphism in the mineral kingdom, in which he has given a most interesting account of the production of minerals by artificial means. To all these gentlemen I beg, in the name of the Society, to give cordial thanks for their assistance in the furtherance of its objects. To Dr J. A. Smith, our Secretary, special thanks must be offered for the constant 298 Proceedings of the Royal Physical Society. supply of objects of interest which he has every evening placed upon our table, and his valuable observations thereon; and to Mr G. Logan, the Convener of the Dredging Com- mittee, for his Report. Such has been the result of the past session. Good steady work has been done, and patiently recorded. We are men of work, not of talk. We have given forth no voice on the grand hypothetical questions which are now troubling the commonwealth of Natural Science. We have been singularly apathetic as to whether or no the stock of our first parent struggled upwards through innumerable adversities from a monad to a man. I fear, indeed, that we are prejudiced people, and would rather leave the question as we found it settled many a year ago at our mother’s side. We have given no opinion as to whether the king of the Gorillas died gloriously advancing on his terror-stricken foe, and beating a far-resounding tattoo on his tympanic chest, or whether he was brought to the ground by a rifle-shot in his cerebellum while ignominiously bolting up a tree. But we have been jotting down hard little facts,—rough diamonds, which by-and-bye we may see taken up and ground, and polished, and set by other hands,—central points of crystal- lization, which we may find dotting the pages of great standard volumes, and glimmering from amid the small type of their foot-notes and indices. Sic itur ad astra. These small facts are the foundations of adamant on which the vast mverted pyramids of science are balanced. In their discovery they are providential revelations, which, though neglected for ages, may in a moment endow man- kind with unhoped for welfare and prosperity. How often have men, dreaming of the transmutation of all metals into gold which would be useless—of the attainment of the EKlixirwhich would confer a dreadful immortality,—cast aside the talent placed within their hands, and all that would have made the life ordained for them useful and happy! How often, while invoking all nature to furnish us with the impossible Roc’s egg, have we pushed aside the little — dusty copper lamp, which, in return for diligent rubbing, would have invested us with the powers of the genius of President's Address. 2.99 Arabian fable! How little did he, who first noticed the attractive property of the loadstone, imagine that to him was revealed a power which would one day guide the commerce and navies of the world over the pathless seas,—which would veer off the floating city, laden with the hopes of a thousand human hearts, and careering over the dark waves with the speed of the wind, from the treacherous iceberg and the crashing floe,*—which would link together in the closest bonds all the kingdoms of the earth,—which could correlatively transmute all the forces of nature—and which may one day render the great sea itself one mighty store- house of fuel and power for the benefit of mankind! How little did he, who first linked together an atom of hydrogen with two of carbon and three of chlorine, dream that then was revealed to mankind the beneficent HKlixir which would cause that dread and ancient travail of the woman to cease, —which would change the despairmg moan and the agon- ising terror of the operating table for a calm and dreamless slumber—and which shall render the fame of Dumas and Simpson undying, until the stream of time shall flow for suffering humanity no more! So it may happen that some unambitious observation made here may throw unexpected light on the Geology of our country,—may endow vast districts with mineral wealth undreamt of,—may modify all our received views of cell-life —and may put down a hard little point, on which may arise the Physiology and Pathology of the future. Let us there- fore go on as we have done, not urged by the desire of fame or notoriety, but constrained by the love of knowledge and truth. * Mr Alexander Bryson has lately made a beautiful application of Melloni’s pile to the detection of the position of icebergs at sea—the needle of the in- strument directing the steersman to avoid them, {7 The application of the magneto-electric machine to the conversion of mechanical power into electricity, chemical action, &c., is at present but in its infancy. Magneto-electricity has, itis true, been largely rendered available in electro-metallurgy, in telegraphy, and for obtaining lighthouse illumination. But the day will surely come when the vast water-power of the world will be employed, through the intervention of the magnet, in effecting enormous che- mical operations; amongst which will be the resolution of water into its ele- ments, and their application to those purposes for which coal is now employed. 300 Proceedings of the Royal Physical Society. Our Society has still another function. It plays its part as an exponent, through its reports in the daily press, of the progress of Natural Science—a knowledge of which cannot fail sooner or later to give a higher tone to the literature and cast of thought in our country. It is painful to notice how the writings of many of the most talented and accepted authors of our day are entirely uninfluenced by the sublime realities of Creation,—realities which excel in their grandeur the most transcendent dreams of the imagination. The poet who prates of ‘‘ the pale cold moon,” and the ‘ throb- bing and pulsing stars,” as the bashful witnesses of some illicit love affair, entertains or feigns an infinitely more degraded conception of his relation to the Universe in which he is placed, than the child who lisps at evening,— “Twinkle, twinkle little star, How I wonder what you are.” For that wonder, which accompanies the little one in this his first step towards the attainment of truth, will go hand in hand with him, until in after years he may have sounded all the known depths of the Cosmos. By-and-bye he looks upwards to the Firmament in the night season with the astronomer, and sees, in the luminous pathway which is extended on high, an awful system of suns—a mist of suns —of whose vast size and distance from each other, numbers fail to impart to the human mind any conception. Hach shining particle of that dense sun-cloud, he is told, wonder- ing, is separated from its neighbours by sixty millions of millions of miles. He finds that one such particle alone has been measured, weighed, and analysed ;—it is a vast globe wrapped in a sea of the intensest flame, well-nigh 3,000,000 miles around ;—that this vast furnace, this infinitesmal par- ticle of sun-mist, is slowly moving across the cloud of its fellow suns; yet though it should glance with the speed of light for twenty thousands of years, its journey would still be unaccomplished;—that this almost immeasurable Uni- verse of suns is but a speck in a cloud of grander Universes separated from each other by still more immeasurable wil- dernesses of darkness extending into infinity for ever. In those unfathomable abysses, he views the wheeling of Presidents Address. 301 planets around their Suns in slowly rocking orbits,—of Suns linked in circling round with their fellow Suns, blue, and orange, and green, and crimson,—of Universe linked with Universe, —of immeasurable rings and clusters, and com- plicated spiral whirlpools, lustrous with countless myriads of Suns. But who shall recount to him the unimaginable mysteries of being,—of life, and mind, and soul, called forth by the voice of the Almighty, around each radiant centre !— Who shall report “ their holy triumphs out of evil wrung!” —Who shall tell of the great Hosanna, arising throughout these illimitable creations, for ever before the all-pervading mercy-seat of God ! Again ;—this green duck-pond presents no inviting or miraculous appearance. But the philosopher, still a wonder- ing child, places a drop of its slime under the highest power of the microscope, and a world of beautiful fish-like creatures starts into view,—the green Euglenas. He notes the accu- rate wave-lines of their taper forms,—the long, lashing trunks by which they scull themselves along,—the brilliant crimson eye-speck, which hints of a sense perhaps unknown to man,—the wonderful provision made for their multiph- cation and preservation,—how a single Kuglena, by inces- sant self-division, becomes an infinite host,—how, when the summer sun is drying up the puddle which is its Universe, it seals up itself in a cell of horn, like the Indian Fakir, and lies hard and dry in the mud, or floats a speck of dust upon the breeze, until a welcome shower restores it to liberty and life, when it creeps out of its cell again, not one, but a swarm of little Huglenas.* The filthy scum that coats the common sewer, and hangs in long floating fringes from every stick and stone in our Water of Leith, becomes in like manner transformed into vast assemblages of the most wonderful and beautiful of all animalcules,—into forests of Carchesium, each animal of which is as amany-branched tree of glass,—each branch in- stinct with life,slowly extending, or quickly contracting itself * There can be little doubt that the Huglenas are plants, endowed with motion and sensation for light. I have plentifully obtained oxygen gas by ex- posing these organisms to strong sunlight. 302 Proceedings of the Royal Physical Society. in convoluted spirals,—each twig crowned with its vase- shaped zooid, wreathed with a whirling glory of never-resting cilia ; there is the contractile heart ; there the circling round of moving fluids that ceases not but with life. Within the branching galleries of these sponges, uprooted and driven landward by the hissing tide, lurk tiny Polythalms, strange and beautiful forms, the microtypes of things that lived inthecloudy dawnof earliesttime. Here theold Baculoid and Hamoid and Nautiloid models appear again in the beaded wands and spirals of these many-chambered shells—each a city whose indwellers are but little patches of shime. No bright-eyed Nautilus puts forth its clasping arms from these richly-sculptured habitations ; they are built up by a shape- less and unorganised glair—a living glair, which streams as a filmy network from all their thousand openings, and spreads afar its glutinous meshes, whose touch is death—a formless mystery, beneath whose plastic force lie moulding the solid mountain chains and continents of a future world.* Amidst the crannies and furrows of these stones and broken shells, dredged from the deep, the wildest stories of Arabian romance are imaged forth in facts of every- day experience. From the delicate and fluted flasks of these Lagenee issue beings no less wonderful than those cloudlike Marids whom, sealed in bottles of brass, Solomon plunged beneath the waters of Hl Karker;} while these silvery Ephelotas, seated on their tall and glassy watch-towers, stretch forth arms deadly as those of Dahish, an Efreet of the Jinn, whom, rebellious, Ed Dimiryat fixed on his lofty pillar of carnelian for ever. f Thus the vile things of Nature teem with the beauty of invisible existences,—mutter to the attentive ear myste- * The Oolite and Chalk, especially the latter, are in a great measure made up of accumulations of Polythalamian shells. While, in the Tertiary period, a vast Polythalamian formation (the Nummulitic) attained to a thickness of many thousand feet, and extended itself over great tracts, passing through the continents of Europe, Asia, and Africa. Similar deposits are now in process of formation over vast areas of sea bottom, especially in the Atlantic, Mediter- ranean, and Australian seas. t The Thousand and One Nights. Lane. Vol. ili. p. 136. { Ibid. Vol. iii. p. 131. President's Address. 803 rious life-histories, of deeper import than the astronomer’s record of all those infinitudes of wandering fire. Hach day the sea, slowly creeping back from its weedy shores, calmly reveals unknown and inexhaustible treasures, or, driven into fury by the storm, casts at our feet rarer gems from its deepest storehouses. Hach night its waves glitter with sparks of living light, the handiwork of a Providence which never slumbers nor sleeps. Night after night, o’er all the tide-lashed margins of the deep, the shining kingdoms of the great Polyp-world blaze before the Lord. All the day long stretch they forth their arms motionless waiting their meat from His hand. These, seen but by the seeker, wreathing the worn rocks with garlands of living flowers ; —these, towering up from the sombre depths of the Nor- wegian fiords, lofty as mighty forest trees ;—these, clear and tiny as drops of dew, bounding along the surface of the summer seas ;—these, slow wheeling like stately argosies, trailing their fringed streamers in graceful spirals many a foot behind ;—these, God’s workers from the beginning, raising against the Pacific surges vast barriers, before which all the proud erections of man dwindle into insignificance and which shall endure when the boasted monuments of his religion and his fame shall have crumbled into dust. Again :—our philosopher, still a wondering child, can look back with the geologist, and see “as in a glass darkly,” the earth primeval and void, brooded over by the creative spirit of the Almighty. He can view the traces of those mighty elemental wars—those slow millions of years, that lifted the land from the deep;—those slow millions of years, when the early foliage was creeping over its denuded surface, and the unfolding beauties of the radiata and the mollusc received the approving fiat of Him for whose pleasure they are and were created ;—those slow millions of years, when the brood of the dragon reigned—when gigantic Saurians trailed them- selves through the plashy marshes, darted fish-like through the waters, or, poised on bat-like wings, filled the dank air with bellowing croaks and shrill whistles; there, where ages upon ages afterwards, the wolf howled amidst the dense oak forests of Britain, and snuffed the human holocausts VOL. II. 2k 304 Proceedings of the Royal Physical Society. of the naked and painted savage; there, where the well- drained land now whitens yearly with a varied harvest— where the flying express and the electric wire obey the be- hests of a grave and thoughtful people—where through the summer and autumn time is heard the song of the reaper— and where innumerable church-bells proclaim the preaching of the Gospel of Peace. Alas! around each church tower still rises a sad under-song of misery and sin, and borne on the wind comes from the distant ocean the boom of giant instruments of death. Yet, looking back into the past, he can also discern, as in a glass darkly, the future. He can hopefully look forward to that glorious time when, as the old Saurian reign has ceased, so the reptile reign of Sin shall cease, and a renewed race, clothed in the majesty of an innocent manhood, shall lift up their eyes radiant with the indwelling Spirit of the Almighty, and look into the deepest mysteries of God. Millions of millions of years!!! Sad voices cry, “Oh, watchman! what of the night?” “Watchman! will the night of sin never be passed?” But already, those standing on the mountain tops are stretching their hands towards the east. Already, the first glad beams of the World’s great day are glancing on their longing eyes. Already, to those waiting in the chill hour before the dawn, is creeping the murmur of innumerable voices, as of distant seas awakening ‘neath the sun, heralding the slow advance of those beneficent powers which shall make a bloodless conquest of the world, until all its kingdoms shall become the kingdoms of our God and of his Christ. The mills of God grind slowly, yet they grind exceeding small : With patience he stands waiting, with exactness grinds he all. Such are the teachings of Nature:—such the hopes it in- spires. In the highest and the lowest,—in the grandest and the meanest,—the perfect working of a perfect God,— ever putting forth through the slowly lapsing ages still nobler manifestations of His Wisdom and His Power. For the present—rest ; for the future—unbounded confidence aud hope.* * While these lines are being corrected for the press, Edinburgh is shaken President's Address. 305 On the motion of Mr Alexander Bryson, seconded by Dr M‘Bain, a cordial vote of thanks was unanimously given to Dr T. S. Wright for his valuable services as President of the Society, and for his learned and beautiful opening address. Mr Bryson then called the attention of the Society to the value of recording facts, however trivial they might seem, and reminded the fellows that the discovery made by their distinguished member, Mr Peach, and communicated to this Society, of goniatites and other shells, near Durness, had induced Sir Roderick Murchison to remodel his strategra- phical arrangement of the rocks of Scotland. _ Dr M‘Bain said that he was present when the first fossils from Durness were shown to the Royal Physical Society, and that the late Hugh Miller then considered them to be- long to the Old Red Sandstone. At the same time, Mr Miller observed that other fossils, in a more perfect state of preservation, would probably be found in the same locality, that would enable geologists to decide what formation they belonged to. Dr M‘Bain also remarked that simple facts might lead to important results in applied science as well as in the higher generalisations; and stated an instance within his own knowledge, to which the President had incidentally referred, of the application of Melloni’s thermo-electric thermometer, by their distinguished member, Mr A. Bryson, to the detection of icebergs at sea, which might ultimately be the means of saving an incalculable amount of life and property. Dr Wright then proceeded with a Report on the anatomy of the Hydroide. by cannon—booming for a great and peaceful victory. A true and noble man hath laid aside his titles, and honours, and power; and hath passed from the uncertain and turbulent shadows of this world, to the serene light of the eternal day. Gentle, and wise, and good,—earnest in the work of the pre- sent,—he was of those who, standing on the mountain tops, gaze wistfully on the brightening dawn of the future. ‘ Nobody,” saith he, who, being dead yet solemnly speaketh—* Nobody who has paid any attention to the peculiar features of our present era, will doudt for a moment, that we are living at a period of most wonderful transition, which tends rapidly to accomplish that great end to which, indeed, all history points—THE REALISATION OF THE UNITY OF MANKIND.” (Speech of the Prince-Consort at the Lord Mayor’s Banquet, 1850.) 806 Proceedings of the Royal Physical Society. The following Communications were then read :— 1. On the Anatomy of Sacculina with a description of the Species. By Joun Anperson, M.D. Plate XIII. Three years ago I drew the attention of this Society to the fact of the frequent occurrence of Sacculina and Pelto- gaster on some of the Crustacea of the Firth of Forth. For some years past the subject of the affinities of these parasites has been occupying the minds of many foreign observers ; and the following observations, therefore, are brought before the Society in the hope that they may tend to throw some light upon this difficult question. In the present paper I have purposely abstained, as far as possible, from dogmatis- ing regarding their systematic position, but elsewhere I have referred them to the Cirripedes.* I may mention that the relative position of the investing sacs, the character of the ovaries and the ovigerous lamellee, and the apparent herma- phrodite nature of the adult animal, when viewed in con- nection with the larval form, appear to me clearly to indicate their Cirripedial nature. Accordingly, in my graduation thesis, I created a new order (Sacculinacea) for their re- ception. Among recent observers, Leuckart drew the attention of naturalists to Thompson’s systematic description of Saccu- lina, and proposed the adoption of his generic term. “If we restore,” he says, “‘ the name Sacculina either for Pelto- gaster in Rathke’s sense, or, at least, for the form character- ised by Diesing as Pachybdella, we are only discharging an old, superannuated debt.” In the same article he described a new form parasitic upon Hyas araneus, and which he named Sacculina inflata. In accordance with Leuckart’s proposal, I use the term Sacculina as referring to the parasite alluded to by Cavolini, and as synonymous with * Graduation thesis, “‘ Contributions to Zoology.” t The following are the characters of this order, as given in my thesis :— Cirripedia sine segmentis, oculiset appendiculis. Carapaxsacciformis et appen- diculata est : foramen in carapace situm est. Pedunculus annulo corneo affixus est. Os suctorium. Larva primo monocula cum 3 crurum paribus. Cir- ripedia parasitica sub abdomine Crustaceorum Decapodorum Brachyurorum. Society, Ldimburg!. J.Anderson, MD. el Aires ra it Ltoyal Physical Plate XM. SACCULINA . On the Anatomy of Sacculina. 307 Peltogaster carcini, Rathke, and Pachybdella Rathkez, Die- sing. The Larva, P\ Xi. fig. 1. The larva, in the first stage, is oval, and presents no marks of segmentation. Placed near the centre of the anterior margin of the body is a yellow speck—the eye (a). The ocellus is placed nearly in the centre of a dark-coloured ring (6). Krohn, who has observed a structure similar to this in the larva of a Balanide, regards it as the esophageal ring. The lateral margins of the body, on either side of the ocellus, are prolonged into two horns (c); and in this re- spect the young resembles the Cirripedian larva in its first stage. It is provided with three pairs of natatory legs: the first pair (d) are situated immediately posterior to the horns of the carapace; they are uniramous, are provided at their extremities with bristles, and appear to be composed of two joints; the second and third pairs (d’ d’) are larger than the first, and are both biramous. The rami are furnished with bristles. The under surface of the body is prolonged into two spines (€ e), which project beyond the posterior margin of the carapace. Besides these terminal spines, I have obser- ved through the transparent body, two other structures (//), which resemble very much the middle pair of spines described by Darwin as occurring on the larva of Chthamalus stellatus. The greater portion of the body is occupied by an oval mass of nearly spherical globules (g). The various transforma- tions of the larva remain yet to be determined. The Adult Animal. Pl. XIII, figs. 10, 11, 12, 15. According to the present state of our knowledge, this parasite seems to be peculiar to the Decapod Crustacea. All the specimens I have obtained have been attached over the terminal portion of the intestinal canal (figs. 10 & 11 0’) of the crabs on which they were parasitic, the females of which they appear to infest more than the males. This latter circumstance seems to be owing to the large size of the purse of the female, as compared with that of the male crab, affording them a better protection and means of support. The external sac (figs. 2,4 a)—The external skin is a 308 Proceedings of the Royal Physical Society. tough, brownish-coloured, corrugated, and highly contrac- tile structure. It is chiefly by means of this membrane that the parasite is attached to the crab on which it lives. The part which is attached to the crab forms a short ped- uncle (b), but afterwards it suddenly expands to form the external sac. The pedunculated portion (b) is very firmly connected by means of a horny ring (d) to the skin which invests the gut of the crab. The posterior extremity of the sac remains open, forming a small orifice (c), which I have called ovario-branchial. The peduncle (b).—The external skin of this structure is a continuation of the external sac (a), and contains within it a prolongation of the parasite (£), which passes through the horny ring, and rests upon the intestine of the crab. The prolonged portion is tubular. In this arrangement we have evidence for the parasitic nature of Sacculina, and are entitled to regard the anterior portion of the peduncle as the mouth. The mouth, structurally as such, is entirely absent; and the only way the animal appears to derive its nourishment is by this process absorbing the required nutriment. The ovario-branchial orifice (c) is sonamed from the two- fold function it is supposed to fulfil in the economy of the parasite. If a living Sacculina is carefully watched for a few minutes, this orifice will be seen to open and contract slowly, while a current of water may be seen to pass into and out of the cavity of the body, the sac at the same time alternately distending and contracting. The ova, when fully developed, are extruded by this orifice, the structure of which confines the water to the sac which contains them. The orifice is situated upon the posterior margin of the body, and is slightly raised above the level of the sac. There is a constriction at its base, and a thickened por- tion of the sac plays the part of a sphincter muscle. The inner margin of the orifice is thrown into folds, usually eleven in number, sometimes of a delicate and pellucid ap- pearance. By this arrangement the orifice is capable of great distention. The corium (fig. 2 e).—On reflexion of the external skin we © On the Anatomy of Sacculina. 309 expose the underlying corium, which invests nearly the whole inner surface of the sac. I have succeeded, in one or two instances, in separating this membrane into two well- marked layers. The external layer is a very thin membrane investing the whole inner surface of the sac, attached at its anterior extremity to the horny ring of the peduncle, and posteriorly to the ovario-branchial orifice. I think it pro- | bable, when the external skin is moulted, that its place is supplied by this structure. The inner layer, following it from the ovario-branchial orifice to which it is attached, passes forwards, closely applied to the outer layer, till it nearly reaches the anterior margin of the sac, where it be- comes reflected on to the anterior portion of the peduncle, and can be traced no farther as a separate structure. At the left margin of the peduncle the corium is attached by a septum (fig. 3 g) to a pulpy body embraced in the folds of the ovigerous lamelle. Organs of reproduction.—On opening Sacculina by an inci- sion extending through the sac and continued from the ovario-branchial orifice to the peduncle, we expose a pellucid sac (fig. 4 2) filled with ova. This sac is found on both sides of the pulpy body above referred to (fig. 2 h), which it em- braces within its folds. The sac is merely a temporary structure including the ova till their full development ; and at this period I have seen the ovario-branchial orifice plug- ged up by the extruded sac and its contents, and in. other cases I have found it lying quite loose in the general cavity of the parasite. In specimens like these, a delicate mem- brane may be separated, by gentle manipulation, from the inner surface of the corium and from the surface of the pulpy body or internal ovaries. This membrane appears to be an ovigerous sac, in the process of growth, destined to receive a brood of ova, but, after their development, to be cast off like its predecessor (fig. 5). The ovigerous sac ap- pears to be continually present in one stage or another of its development, so that the water which passes in at the ovario-branchial orifice is never in contact with any other structure. In a large specimen of Sacculina carcini, I found two small mussels living in and attached to the inner sur- 310 Proceedings of the Royal Physical Society. face of its ovigerous sac. The ova (fig. 6) are enclosed in the sac, and are arranged in a racemose manner, enveloped in a very delicate membrane. The internal ovaries (figs. 2, 3, & 3’, h) are situated pos- teriorly to the peduncle. They constitute an oval, flattened, pulpy mass, dividing the cavity of the parasite into two compartments; they are attached by the centre of their pos- terior margin to the left wall of the ovario-branchial orifice; and also, as previously mentioned, by the septum which runs along the left side of the sac, they are connected to the corium (fig. 2g). In the many specimens examined, I have always found a small tubercle (figs. 2 & 3 0), with a minute and apparently horny speck on its summit, placed on both surfaces (figs. 3 & 3’, 0) of the body of the ovaries lying op- posite to one another, a little to the left of the centre of its posterior margin. On removing the little speck of horny matter, a depression is seen in the centre of the tubercle, apparently communicating with the substance of the ovaries. May not these structures be the orifices of the oviducts, closed by a temporary secretion of horny matter till the brood of ova in the ovigerous sac has attained its full develop- ment? This view of the nature of these tubercles has sug- gested itself to me from the difficulty of accounting for the passage of the ova into the ovigerous sac. The fact that the ova found on the external surface of the ovaries are always more fully developed than those further removed from the surface suggests another view of the subject,—viz., that they are developed in successive layers, and thus constitute the ovigerous lamelle. Situated immediately posterior to the peduncle, is a well- defined cavity, lined by a special membrane, and containing two oval-shaped bodies (6) placed side by side. These pel- lucid sacs (figs. 7 and 8) contain in their cavities peculiarly shaped bodies (c), and are provided with convoluted ducts (a). The ducts appear to pass towards the right side of the parasite (figs. 3 and 3’, h) along the anterior margin of the ovaries, where they unite and become lost. From the close relation of their ducts to the ovaries, it has all along appeared to me that these vesicles probably play an important part On the Anatomy of Sacculina. 311 in the generative economy of the animal. This opinion seems to be strengthened by the fact that, on one occasion, when examining under the microscope a portion of the ovaries in the immediate neighbourhood of the vesicles, I detected among their convolutions a tube identical in appear- ance with the structure of their ducts. As yet, I have found it impossible, from the soft nature of the tissues of these parasites, to trace the ducts to their final termination ; but, from the appearance of the tube above described, it seems to me very probable that they terminate in the ovaries. The walls of the vesicles are simply granular. A peculiarly formed body (figs. 7 and 8c) is placed in the interior of each of the vesicles, immediately over the opening of their ducts. The portion of this body situated immediately over the ducts (6) is of a brown colour, and apparently of a horny consistence, and is terminated by three processes. The whole structure (fig. 9) is extruded when pressure is applied to the vesicle. May not these vesicles represent the testes and cement-glands of these parasites ? These observations have been made from dissections of a new species, parasitic upon Cancer pagurus: it differs in its anatomy from Sacculini carcini in the form and position of the vesicles. In the former species these organs are oval, and placed immediately posterior to the peduncle, while in the latter they are elongated (fig. 16), and buried in the left an- terior angle of the ovaries. The relation of the septum to the surrounding structures, and the double nature of the ovigerous sac, hypothetical oviducts and testes, indicate a tendency to bilateral sym- metry. Genus Saccvutina, Thompson. Sacculint carcino, Thomps. Pl. XIII. figs. 10 and 12. Thompson, J. V., Entomol. Mag., vol. iii., 1836, pp. 452-456. Peltogaster carcini, Rathke, Beitraige zur Fauna Norwegens, Acta Leop. mx. p 24/7, tab. 12; fies: 18,19. Pachybdella Rathk.t, Diesing. Syst. Helm. i. p. 435. Diagnosis.—Bilobata est, maxima diametro per transversum; para- sitica in Oarcino menade. This species is confined to Carcinus menas, and, in my oWh experience, is almost always found on the female crab. VOL. II. 28 312 Proceedings of the Royal Physical Society. It is bilobular in form, its greatest diameter being in the transverse direction. The figure given by Cavolini of the parasite he described exactly corresponds with this species. It varies greatly in size, and is undoubtedly the largest known species of these parasites. Some of my specimens are an inch in breadth. The skin, in the generality of specimens, is of a brownish-yellow colour, and is minutely corrugated. This species has a wide geographical range. Cavolini obtained his specimens from the shores of the Mediter- ranean; Rathke first met with it in the Crimea, and after- wards in Norway; Schmidt found it in great abundance at Wangerooge, and he also obtained specimens on the Dalma- tian coast ; Steenstrup’s specimens were from the Mediter- ranean and from the ‘“ Black Banks” in the North Sea. From the observations of Thompson, this parasite appears to be of frequent occurrence on the Irish coast. Some years ago I found this species for the first time in the Firth of Forth, but not nearly in such numbers as the following one. wat Sacculina triangularis, nu. sp., figs. 4, 11, 14. Diagnosis.—Triangularis est, gregaria, raro sola; maxima diametro ab pendunculo ad .posterius foramen pertinente: parasitus Cancri pagure. — This species is usually gregarious; sometimes as many as five individuals may be found huddled together and strug- gling for existence. I have never found it on any other crab than Cancer pagurus. Of the two species of these parasites found in the Firth of Forth, this is by far the most common: in some localities along the coast, to find a crab free from it is the exception. The form of the animal is triangular. The greatest diame- ter is in the longitudinal direction,—~.e., from its attachment to the posterior orifice. Besides differing in its external cha- racters from Sacculina carcini, it also differs from it, as al- ready noticed, in the form and position of the vesicles. I am indebted to Professor Goodsir for a specimen of this parasite found in the collection of his lamented brother, the late H. D. 8. Goodsir. It is a large specimen, apparently On the Anatomy of Sacculina. 313 distended with ova, and adhering to the purse of a Cancer pagurus. | be Sacculina inflata, Leuckart, fig. 15 (Wiegmann’s Archiv., 1859, . p. 232.) Diagnosis.—Dorsi et ventris superficies multum arcuata est; posteriore foramine a corporis margine aliquantum remoto: parasitica in Hyade araneo, I only know of this species through the description given of it by its discoverer. Bibhography. Cavount. Sulla Generazione dei Pesci e dei Granchi. 4to. Naples, 1787. THompson, W. Entomol. Magaz., vol.ui. 1836, Pp. 452-456. Ratuke. Beitr. zur Fauna Norwegens. 1842. Pp. 244-247, tab, 12, figs. 18, 19. Neueste Schriften der Nat. Ges. in Danz. Bett, Tuos. A History of the British Stalk-eyed Crustacea, p. 108. Scumipt, O. Das Weltall, No. 3. 1854, StEeENstRuP. Oversigt k. Danske Selsk. Forhandler. 1854. No. 3. Pp. 145-158. Archiv f. Naturg. 21 Jahr, 1855. Bd. 1., pp. 15-19. Ann, of Nat. Hist. 2 ser. vol. xvi. 1855. Pp, 155-62. ! Dizsine. Systema Helm., vol. 1. pp. 434-435, LeuckarT, Wiegmann’s Archiv. 1859. P. 2382. Ann. of Nat. Hist., 3 ser. vol. iv. 1859. Pp. 422-429. Litisezore, Witty. Nova Acta Reg. Soc. Sc. Upsal. Ann. of Nat. Hist., 3 ser. vol. vi. pp. 162-173, and pp. 260-267 Explanation of Plate XIII. Fig, 1. Larva of Sacculina; first stage: a, eye; 6, cesophageal rine?; c, horns of carapace ; d, first pair of feet; d’, second pair of feet; d’, third _ pair of feet ; e, terminal spines ; f, supposed anterior spines; g, cen- tral cellular mass of the body. Wig. 2, Dissection of S. triangularis: a, portion of external sac reflected ; 6, peduncle ; c, ovario-branchial orifice; d, horny disk; e, corium ; h, internal ovaries; 7, ovigerous lamelle; k, portion of peduncle prolonged beyond the horny disk; 7, vesicles; 0, tubercle of anterior surface. Fig. 8. Anterior surface of interior ovaries removed from their connections ; g, the septum ; h, mass of internal ovaries; 0, tubercle (oviduct ?) e, portion of adhering corium [these letters apply also to fig. 37]; Z, the vesicles. Fig. 3’. Posterior view of internal ovaries of S. carciné. ol4 Proceedings of the Royal Physical Society. Fig. 4. Sacculina triangularis ; external skin and corium reflected: a, external skin covered internally by the corium ; 7, ovigerous lamelle. Fig. 5. Ovigerous sac, showing the anterior and posterior folds which embrace the internal ovaries. Fig. 6. Mass of ova from the ovigerous lamelle. Fig. 7. Greatly magnified view of one of the vesicles, drawn from a fresh specimen: a, the duct of the vesicle; ¢, the structure found in the interior of the vesicle; 6, the horny substance found at the com- mencement of the duct. Fig. 8. The same organ as fig. 7, drawn from a specimen preserved in alcohol: a, the convoluted duct ; b, the horny process. Fig. 9. The structure found in the interior of the vesicle, removed. Fig..10. Sacculina carcinit, with no ovigerous lamelle, nat. size: 0b, the peduncle ; 8’, intestine of crab ; ¢, ovario-branchial orifice. Fig. 11. Sacculina triangularis, nat. size. (Same references as in fig. 10.) Fig. 12, S. carcini distended with ova. Fig. 18. Posterior view of fig. 12; d, horny attachment of peduncle; 4, pro- longed portion of the same. Fig. 14. A group of S. triangularis. Fig. 15. S. inflata (after Leuckart). Fig. 16. Enlarged view of the vesicles of S. carcinz. II. Observations on British Zoophytes. 1. Hydractinia areolata, n. sp. 2. Atractylis arenosa, n. sp. (Plate XIV.) By JosHua Axper, Esq. Communicated by T. StretHitt Wricut, M.D. 1. Hydractinia areolata, nu. sp. Plate XIV., figs. 1-4. Polypary encrusting, consisting of a solid chitinous ex- pansion, from which arise simple lmnear spines in irregular groups, leaving areolar spaces between them. Polyps naked, small, white, columnar, slightly enlarging above, and terminating in a conical mouth, below which is a single circle of from six to ten linear tentacles, appearing of dif- ferent lengths from their varying contractility. Gono- phores (reproductive organs) sessile on the chitinous base, large, globular, or slightly pear-shaped, containing each a single medusoid. Height of polyp about ~jth inch. Medusoid with a moderately deep subglobose umbrella, having four golden-yellow radiating canals, at the bulbous — bases of which, on the margin of the umbrella, are four rather short tentacles; four shorter ones alternate with them; and intermediate between these are eight others, almost tubercular. The peduncle is rather long and co- LtateX1V. Fioyal Physical Society, Edinbur gh . A dof fo Sie rete an POE pereeanes Ue: See NN S Bastre &e. HYDRACTINIA AREOLATA, 1-4. ATRACTYLIS ARENOSA, 5~7. afc’, Observations on British Zoophytes. B15 lumnar, with four tufts of thread-cells surrounding the mouth. A single specimen only of this interesting little Hydrac- tinia was obtained, parasitical on a dead shell of Natica Alderi brought in by the fishing-boats at Cullercoats. I have since seen a dead and rather worn specimen, upon Natica Grenlandica, among the Zoophytes collected in Shetland by the Rev. A. M. Norman. The species differs from H. echinata in its much smaller size, the simple linear form of its spines, their irregular grouping, and more espe- cially in its bearing medusoids; these latter spring from the encrusting base. No capsule could be detected ; but this might possibly arise from its great transparency. The me- dusoids bear a great resemblance to those of Podocoryne carnea (Sars), the only difference being in their having eight intermediate tubercular tentacles. In this respect they also differ from the medusoid of a Hydroid polyp described by Professor Lovén, and referred by him to Hydractinia, but which appears rather to belong to the genus Podocoryne, as the base was not horny or spinous. As far as 1 am aware, therefore, this is the only instance in which medu- soids have been ascertained to be produced by a true Hy- dractinia. 7 2. Atractylis arenosa, nu. sp. Pl. XIV. figs. 5-7. Polypary minute, consisting of a creeping fibre, from which arise short funnel-shaped tubes, rather irregular in form, but always expanding more or less at the top, from which the polyps issue, generally covered with minute grains of sand. Polyps entirely retractile, with long, slender, strongly muricated tentacles, varying in number, according to age, from six to twelve. The genus Atractylis has been established by Dr Strethill Wright for a group of Hydroid Zoophytes resembling Fw- dendrium in many of their characters, but differing in the conical form of the mouth of the polyp, and its retractility (partial or complete) within the tubular polypary. They are generally of small size, and seldom branched. Their reproduction is usually by medusoids ; but Dr Wright, who 316 Proceedings of the Royal Physical Society. has lately met with the present species in the Firth of Forth, has ascertained that it produces planuloid young direct from the summit of the ovarian sac. This affords another proof of the difficulty of establishing a genus from the mode of development. I have met with this species occasionally, for some years past, on stones and the roots of Laminarie at Cullercoats and Tynemouth. From its minute size, it, requires to be carefully looked for. Explanation of Plate XIV. Fig. 1. Polypary of Hydractinia areolata on Natica Alderi, natural size. . Fig. 2. Hydractinia areolata, highly magnified. Fig. 3. A portion of the polypary of the same, highly magnified. Fig. 4. Medusoid of the same, highly magnified. Fig. 5, Atractylis arenosa, natural size. Vig. 6. The same, highly magnified. Fig. 7. A tentacle of the same, much enlarged. III. On Reproduction in Adquoria vitrina. By T. Srreruity Wricut, M.D. Plate XV. In vol. i. of Agassiz’s ‘‘ Natural History of the United States,” the following passage occurs :—‘‘ As to the Auquo- riadee, I have no doubt that they are genuine hydroids, though I have not been able to trace with certainty the origin of the AXquoria of our coast to any true hydroid. But the structure of Aiquoria in its adult Medusa state is so strictly homologous to that of all the naked-eyed Medusz, that even if it were ascertained that it undergoes a direct metamorphosis from the egg to the perfect Medusa, I would not. hesitate to consider it as a member of the order of Hydroids, since it has simple radiating aquiferous tubes, a circular canal, and marginal tentacles closely connected with it, and provided with minute pigment spots at the base.” Agassiz was doubtless correct, and he might also have pre- dicted that it belonged to the genus Campanularia or Lao- © medea, as it corresponded with those genera in the presence of otoliths. In the beginning of this month (November) Mr Fulton sent me two living specimens of Aquoria vitrina, one about three inches in diameter, the other about six Je GPA AE te DOE wal Society, Edinburgh’. € « Raval Phys. Vol. I. W.H.M Farlane, Lith* E dint OT Steethill Wright, del? US ya 6MoSd. Be eel Atractyl trina Tel NL ore GUO Observations on British Zoophytes. 317 inches and a half. The number of lips of the latter was about forty, the radiating canals, each having a long ovisac;, about eighty, and the marginal tentacles, by estimation, four hundred. On examining the ovaries, I found that the egos were hatched, and the young, in the form of almost invisible planule, were issuing from the ovisacs. These were gently extracted with a glass syringe, an instrument so useful to those who practise the obstetric art amongst the hydroide, and were placed about three weeks ago in glass tanks of clean sea-water prepared for their reception. Many thousands of larvee were placed in the tanks, and of those, about a score have been developed into Campanularian polyps; about a hundred are still progressing to that end, and the rest have disappeared. It was with no little impatience and anxiety that I saw the Planula during a fortnight fix itself to the glass, spread itself out into a short thread, secrete its scleroderm, put forth its polyp-bud—this last slowly swelling day by day, until at last it opened, and a polyp appeared, furnished with twelve alternating tentacles, joined together for about one-third of their length by a web, the polyp enclosed in a cell terminating in many acuminate segments. It is now about six years ago that I was watching, in like manner, the slow evolution of a bud from a Campanularian Zoophyte, the Laomedea acuminata of Alder—the Campanulina of Van Beneden—the bud opened, and a bright green medusoid issued forth, having four lips and two tentacles. The polyp form of Mquoria vitrina is, as far as I can determine, identical with that of L. acuminata in shape; but is so excessively small—quite invisible to the naked eye—that we must wait for further development before we can determine their identity. Ge- ganbaur has proved that the Medusoid of Velella acquires a further number of canals and tentacles; and I have else- where recorded the successive changes which occur in the Medusoids of several species of Atractylis. It is also certain that such increase in the number of elements does occur in Aiquoria vitrna, for the smaller specimens have always a less number than the larger. Meantime, the question as to the larval state of A/quoria vitrina is settled. This, the 318 Proceedings of the Royal Physical Society. largest of all the naked-eyed Medusas, is the reproductive phase of one of the smallest of all the Hydroide. Explanation of Plate XV. A quoria vitrina. . Planula directly after leaving the ovary. . Same a week old. . Same after having fixed itself to the glass and developed its scleroderm, —now become a polypary. . Polypary putting forth bud. . Same with young polyp. . Empty polyp cell. Oo Ov ©2 NS IV. The following Objects of Natural History were exhibited by Epwarp CHarteswortH, Hsq., York. A stuffed specimen of the Frilled Lizard Chlamydosaurus Kingii, from Port-Nelson, New Zealand, believed to be the best example yet seen of this most extraordinary reptile. It was purchased at the;sale of the late Dr Mantell’s Museum. A small but extraordinary coral from the Chinese Seas, believed to be undescribed. A series of small fossil tertiary shells from Barton, in Hampshire, illus- trated by magnified figures. A collection of small recent British Marine shells, illustrating a new mode of mounting and exhibiting very small specimens, intended to in- sure safety with effective display. The shelis were fixed on cards with gum tragacanth, which can be freely brushed across the surface, and thus save much time in mounting, as it does not shine when dry, like gum arabic. ‘The cards are then put in small boxes with glass lids. = A specimen of Mactra Helvacea, and other shells from the Channel Islands; several rare fossils of various kinds were also exhibited. Monday, 16th December 1861.—ALEXANDER Bryson, Esq., President, in the Chair. The Office-Bearers for the Session 1861—62 were elected as follows :—_ Presidents.— Alexander Bryson, Esq.; James M‘Bain, M.D., R.N. ; John Coldstream, M.D. Council. William Rhind, Esq.; David Page, Esq. ; William Tur- ner, Esq., M.B.;, Thomas Strethill Wright, M.D.; George Berry, Esq. ; A. M‘Kenzie Edwards, Esq. Secretary.—John Alexander Smith, M.D. Treaswrer.— George Logan, Esq. Assistant Secretary.— James Boyd Davies, Esq. Honorary Librarian.—Robert F. Logan, Esq. Library Committee—W. H. Lowe, M.D.; John Anderson, M.D. ; John §, Livingston, Esq. The following gentlemen were eae ordinary members of the So- ciety :— Murray Thomson, M.D., F.C.S., Lecturer on Chemistry; A. G. H. Cameron of Lakefield, Esq, Tevecncst shire; Thomas Chapman, Esq., og aN On a Non-striped Muscle of the Orbit. 319 Merchant, Glasgow; J. Alfred Wanklyn, Esq., M.R.C.S.L., F.R.S.E., &c., Demonstrator of Chemistry in the University of Edinburgh. Cap- tain F, W. lL. Thomas, R.N., was elected a non-resident member. It was moved by George Logan, Hsq., that on account of the deeply lamented death of H.R.H. the Prince Consort, the Society do adjourn to the fourth Wednesday of January. The motion was unanimously agreed to; Alexander Bryson, Hsq., making the following remarks from the chair :— Gentlemen,—I cannot close the meeting of the Society without giving expression to feelings which I know animate the breast of every Briton. Never in my own remembrance has such a sensation been experienced as that which thrilled through the kingdom yesterday, when the people learned that their beloved Queen was a widow. The late Prince Consort was among the few of the great and distinguished who honoured himself by honouring our pursuits by his appreciation and knowledge of them. We must ever feel how much our country has been indebted to Prince Albert for many institutions cognate with our own, and it is to me a satisfaction, though a melancholy one, that he was enabled to do so much good work. Mr William Turner, M.B., begged that before the Society adjourned, he might be allowed to exhibit some moist pre- parations he had brought in illustration of his paper, as they could not be preserved and again exhibited. Mr Turner's request was agreed to, and the following communication was laid on the table :— I. Upon a Non-striped Muscle connected with the Orbital Periosteum of Man and Mammals ; and Notes on the Musculus Kerato-cricoideus. By Witi1am Turner, M.B. (London), F.R.S.E., Senior Demonstrator of Anatomy, University of Edinburgh. Whilst engaged in making a dissection, in the human subject, during the winter session of last year, of the Superior maxillary, or second division of the fifth cranial nerve, my attention was attracted to a pale-reddish, soft mass, filling up the narrow chink of the spheno-maxil- lary fissure, and extending from the sphenoidal fissure in VOL. I. 2T 320 Proceedings of the Royal Physical Society. the sphenoid bone to the infra-orbital canal in the superior maxillary bone. It was evidently connected to the superior (ocular) aspect of the periosteum of the orbit, and it was pierced by the orbital branch of the superior maxillary nerve, from which, as well as from the ascending branches of the spheno-palatine ganglion, it appeared to receive its supply of nerves.* It completely shut off the superior maxillary nerve, with its infra-orbital continuation, from the cavity of the orbit. Since the period of making the above observation, I have availed myself of several opportunities of examining the same region in other subjects, and have constantly observed appearances of a nature similar to those just described. The amount of the reddish mass, and the depth of its tint, varied slightly in different instances. Frequently it was so pale as scarcely to attract attention, which may perhaps be the reason why it has so long been neglected by anatomists. When carefully examined with the naked eye, or, still better, with a single lens, it was seen to exhibit a fibrous appearance. A -small portion snipped off with scissors, teased out with needles, and placed on the stage of the microscope, under a quarter-inch objective, was observed to be composed of pale, flattened, band-like fibres, having a faintly granular aspect, and presenting indications of elon- gated nuclei at intervals. From these characters I had little doubt that the structure in question consisted of the non-striped form of muscular fibre. As considerable difficulty is always experienced in obtain- ing for examination the contents of the human orbit, in a perfectly fresh condition, I, in the next instance, proceeded to dissect the orbits of some of the more readily obtained mammals, with a view of ascertaining if a similar structure existed in them. In the orbit of the sheep, I have most satisfactorily observed appearances which have fully con- * That Meckel’s ganglion sends branches to the periosteum of the orbit isa fact that has long been known to anatomists, though there have been difficulties in the way of giving a satisfactory reason why such an arrangement prevails. The existence of the small muscle now described accounts for the distri- bution. On a Non-striped Muscle of the Orbit. 321 firmed the opinion of the structure already expressed. The orbit of this animal differs from that of man in possessing much less perfect walls. As a consequence of this, the orbital membrane, or periosteum, is a structure of much 1m- portance, for it stretches across the floor of the orbit from its outer to its inner wall, extends backwards to the optic foramen, and completes the boundary of the cavity at the spot whee the bony wall is wanting. If the contents of the orbit be carefully removed, and the orbital membrane examined from above, it will be seen to be a well-defined structure, distinctly fibrous, and in many places having an almost tendinous-like aspect. Intimately connected with, and forming an essential part of it, 1s a thin layer of a pale reddish substance, which extends across the greater part of the floor of the orbit, passing backwards to the optic foramen and sphenoidal fissure. In close contact with this structure, especially at the posterior part of the orbit, is a well-marked vascular net-work, sufficiently injected with blood to be distinctly visible. This vascular plexus constitutes a small rete mirabile, connected with the oph- thalmic artery. By removing a small portion of the reddish mass, teasing it out with needles under water, and examin- ing it with a quarter-inch objective, it may be seen to be composed for the most part of flat, pale, non-striped fibres, collected together in bundles, having a faintly granular aspect and exhibiting decided indications of nuclei in their interior. These bundles of flat fibres are mingled with ordinary fibrous tissue, both white and yellow, the latter be- coming more distinct after the addition of acetic acid. The pale, non-striped fibres have all the characters of the in- voluntary muscular fibre. Being desirous, however, of ascer- taining if these fibres could be resolved into their con- stituent fibre-cells, I adopted the plan which has been recommended by feichert, and macerated a portion of the orbital membrane for forty-eight hours in dilute hydro- chloric acid. I then found that, by the aid of a very slight dissection, the fibres readily resolved themselves into the elongated fusiform cells of which they were composed. In no tissue which I have ever examined, consisting of the 322 Proceedings of the Royal Physical Society. non-striped muscle, have I succeeded in obtaining more beautiful and more perfect specimens of the contractile fibre-cell than in this muscle of the orbital membrane. The fusiform shape of the cells, their size, and the elongated rod-like nucleus in the centre of each cell, gave to the tex- ture a most characteristic appearance. I may also mention, that when the orbital muscle in the sheep was examined without the addition of any re-agent, besides distilled water, a number of elongated rod-like nuclei were always met with, lying free in the water surrounding the preparation, which had evidently been loosened and detached during the dis- section with the needles. These nuclei corresponded in their characters to those met with in the interior of the fibre-cells. The characters which I have now enumerated render the muscular nature of the reddish texture connected with the orbital membrane sufficiently clear.* On referring to the authorities who have written on the structure of the orbital membrane, I find that the following opinions have been expressed concerning it :— Bendz,t in a paper ‘‘On the Orbital Membrane in the Do- mestic Mammals,” describes it as distinctly fibrous, but pos- sessing a considerable quantity of a yellowish tissue, which he considers to be elastic, interpolated with it. He regards the opinion, which had been previously advanced by Gurlt, that the tissue was muscular, to be erroneous.{ Stannius states that in those animals in which the bony wall of the orbit is incomplete, the separation between the orbital cavity and the temporal fossa is mostly effected by a fibrous membrane containing also abundant elastic tissue. He states that Rudolphi regarded these elastic fibres to be muscular in Bears, and that Meckel described a muscle in the orbital membrane of Ornithorynchus.§ Chauveau speaks of the * Since this paper was communicated, I have dissected the orbit of a red deer (C. elaphas), and found the orbital muscle very strongly developed in it. Not merely did it constitute a large extent of the orbital periosteum, but it possessed a very decided reddish colour. In young human subjects J have also observed it very well marked. + Miuller’s Archiv. 1841, p. 196. t Lehrbuch der vergleichenden Anatomie, 1846, p. 401. 2 Traité d’Anatomie Comparée, 1857, p. 7658. On a Non-striped Muscle of the Orbit. 323 fibrous membrane which completes the cavity of the orbit as entirely composed of white inextensile fibres. Gurlt* con- siders it to be a strong fibrous membrane, with yellow elastic fibres interpolated. H.Muller,t in avery brief communica- tion, states that he has found flat muscular fibres in the inferior orbital fissure in man, and corresponding structures connected to the membrana orbitalis of mammalia. It was supposed by those, who held that the membrana orbitalis was a highly elastic and not a muscular structure, that it was through its elastic recoil that the eye-ball was reprotruded in those animals which retracted the ball, through the contraction of a retractor muscle. H. Muller, again, who speaks more positively than any who have pre- ceded him, not only of the existence of a muscle, but also of the kind of fibre of which it is composed, considers that it antagonises those muscles which retract the eye-ball into the socket, and that thus, the reprotrusion of the globe is produced, not by a mere elastic recoil but by a muscular contraction. If this hypothesis be correct, an arrangement exists in this locality which is certainly to be regarded as an unusual one,—viz., an involuntary muscle acting as a direct anta- gonist to a voluntary muscle. Whether the hypothesis be correct, or not, | am disposed to consider that the muscle has some especial relation to the vascular arrangements in the orbit. Its extension backwards to the foramina through which the orbital vessels proceed, and with which it is in immediate relation, and the very abundant vascular network found in connection with it, point, | think, to some special relation between the muscle and the vessels, a relation which is not at all inconsistent with what is known of the function of non-striped muscle in other localities. Note.—Since the above paper was in type, my attention has been directed, by Professor Huxley, to a communication by H. Miller, dated Dec. 15th, 1860, entitled “On the Influence of the Sympathetic upon some Muscles, and on the * Handbuch der Vergleich, Anat. der Haus. Saugethiere, 1860, p. 788. } Siebold and Kolliker’s Zeitschrift, 1858, p. 641. 324 Proceedings of the Royal Physical Society. extensive Occurrence of Unstriped Muscles in the Skin in the Mammalia.”* As this paper throws some additional light upon the pro- bable action of the orbital muscle, I append a short abstract of it :— H. Muller, after referring to the many puzzling questions which have arisen respecting the function of the sympathetic nerve, and its relations to the muscles supplied by it, pro- ceeds to ask two questions :— 1st, Whether and which unstriped muscles are supplied by other nerves than the sympathetic ? 2d, Whether and which transversely-striped muscles are under the influence of the sympathetic ? In answer to the first, the action of the oculo-motor nerve upon the unstriped fibres of the iris cannot be doubted; the vagus also acts upon unstriped muscles, and the experiments of Schiff have shown that the greater part of the vascular nerves are not connected with the sympathetic. The second question may be most effectively answered by considering the effect produced upon the eye-ball by division or irritation of the cervical sympathetic. Muller, for this purpose, refers to the experiments of Bernard, R. Wagner, and Brown-Sequard ; the general tendency of which is to show, that division of the cervical sympathetic produces narrowing of the palpebral fissure, retraction of the bulb, projection of the ‘nictitating membrane and narrowing of the anterior nares and the mouth. Irritation of the nerve by galvanization, on the other hand, produces increase of the opening of the lids, projection of the bulb, retraction of the nictitating membrane, relaxation of several facial muscles. Respecting the causes which produced these changes there was some difference of opinion. R. Wagner could scarcely conceive that any force, save the contraction of the two obliqui, could produce projection of the eye-ball, and yet, he asks, “‘ how could these transversely-striped muscles re- ceive excito-motory fibres from the sympathetic ?” Brown- Sequard, again, considered that retraction of the bulb, after * Ueber den Hinfluss des Sympathicus auf einige Muskeln, &. Von H. Miiller, “‘ Verhandlungen der Phys. Med. Gesellschaft in Wurzburg.”’ On a Non-striped Muscle of the Orbit. 325 section of the nerve, was produced by the active contraction of the retractor and recti, and that its reprojection by sub- sequent irritation was areposition. Schiff regarded the pro- jection of the bulb as due to the action of the obliqui: the movements of the lids he considered to be passive, and due to those of the bulb. Remak, on the other hand, believed that the narrowing of the palpebral fissure was due to a relaxation of the levator palpebree superioris, accompanied by a spasmodic contraction of the orbicularis. Moreover, he conceived that the sym- pathetic acted upon the voluntary muscles of the lids about the eye. Muller considers that 1t is now no longer necessary to dis- cuss the various probabilities respecting the influence of the sympathetic upon the voluntary muscles of the eye, as a complete series of unstriped muscles have now been ob- served, which will serve as a foundation for explaining the movements in question. These muscles consist of three divisions :— 1st, In the orbital cavity of mammals, a membrane (mem- brana orbitalis), consisting of unstriped muscles with elastic tendons, exists, which, by irritation of the cervical sympa- thetic, projects the contents of the orbit, especially the bulb, forwards. Retraction is produced by the transversely-striped retractor. In man, the orbital muscle ig much reduced in > size, and the retractor is wanting, so that a distinct projec- tion of the bulb does not follow irritation of the sympathetic, as Wagner and H. Muller himself have observed. 2d, The projection of the nictitating membrane in mam- mals is mostly due to the retractor bulbi under the influence of the N. abducens. Its withdrawal depends on some un- striped muscles which are under the influence of the sym- pathetic. In hares, however, the withdrawal is due to a transversely striped muscle, which is not supplied by. the sympathetic but by the oculo-motorius. In man, the lid and its muscles are rudimentary. od, The upper and lower lid possess in man, and in very many mammals, unstriped muscles, which have the power of drawing them back. They are more feeble in the upper 326 Proceedings of the Royal Physical Society. than the lower lid, so that by irritation of the sympathetic the latter is drawn back in a more marked manner than the former. Narrowing of the palpebral fissure, after section of the cervical sympathetic, depends upon relaxation of these muscles. Yet recession of the eye-ball may depend upon relaxation of the orbital muscle. Muller, then, concludes that the movements occasioned by experimenting on the cervical sympathetic are not such as to entitle us to infer an influence of that nerve upon voluntary striped muscles. He also considers that the movements about the nose and mouth, said by Bernard to be produced by section of the sympathetic, if they do take place, are owing to the presence of unstriped cutaneous muscles. Miller next inquires into the existence of unstriped muscles in the skin of the ear. He has occasionally found, on galvanizing the cervical sympathetic in cats, that a move- ment of the hairs growing upon the skin at the entrance of the concha has taken place. This experiment has, how- ever, frequently failed both in cats and other animals. A careful examination of the skin of the part did not give any indications of unstriped muscles, but very distinct muscles were seen connected to the hair follicles. He considers these experiments of interest, as they appear to indicate whence the muscles of the hair follicles receive their nerves. Owing to the movement of the hairs being limited to a very small locality, during the irritation of the sympathetic, one must suppose that only a very small part of the unstriped muscular apparatus of the skin of the cat can be regulated by the cervical sympathetic. Notes on the Occurrence of the Musculus Kerato-cricoideus. —In a paper, entitled ‘‘ Remarks on the Musculus Kerato- cricoideus (Merkel’s Muscle),” read to this Society in Janu- ary 1860 (see Proc., vol. ii. part 1, page 135), I directed attention to an account which had been given by Dr Carl Merkel of Leipsic (Stimm und Sprach-Organ, 1857), of a hitherto undescribed muscle of the human larynx. Merkel described this muscle as arising from the posterior surface of the cricoid cartilage, and extending obliquely upwards — On the Musculus brats Spiceideus 327 and outwards to be attached to the posterior margin of the inferior horn of the thyroid cartilage. He stated that the muscle was not found in every larynx, and that when pre- sent it existed only on one side. In my remarks, I supplemented the description of Merkel with some additional particulars, more especially pointing out, that, although, as a rule, the muscle only occurred on one side, right or left, as the case might be, yet that a double muscle might exist. I figured an example of such a bilateral muscle, which at that time was the only one I had seen. Since then I have met with two additional cases in which a double kerato-cricoid muscle was present. One of these was especially note-worthy, for the muscle, on both sides, was more largely developed than in any previous example that had fallen under my notice. The great size of the kerato- ericoid muscle was combined with a general laryngeal mus- cularity. The occurrence of three examples of a double kerato-cricoid muscle, during the last two years, within my own experience, shows that the bilateral arrangements is not so unusual as was in the first instance supposed.* Wednesday, 22d January 1862.—Jamrs M‘Bain, M.D., R.N., President, in the Chair. The following gentlemen were elected Members of the Society :— Edward Hargitt, Esq., an Ordinary Member; and the Rev. William Cesar, Minister of the parish of Tranent, and Daniel Manson Logan, Esq., Seafield Lodge, Leith, as non-resident Members. The following Donations to the Library were laid on the table, and thanks voted to the donors :—— 1. Report of the United States Commissioner of Patents, 1859. Mechanics, Vols. I. and I1.—From United States Patent Office. 2. (1.) Annual Report of the Board of Regents of the Smithsonian Insti- tution for the year 1859. Washington, 1860. (2.) Smithsonian Con- tributions to Knowledge :—Astronomical Observations in the Arctic Seas, by Elisha Kent Kane, M.D., U.S.N., Washington, May 1860; Tidal Observations in the Arctic Seas, by Elisha Kent Kane, M.D., October 1860.—From the Smithsonian Institution, U.S.A. 3. (1.) Notice of the Indians seen by the Exploring Expedition under the Com- * Since the above was written, a specimen of a symmetrical kerato-cricoid has been sent me by Mr H. P. Mallam, who found it in a subject in the dis- secting-room of Charing-Cross Hospital, VOL. II. OS G5 328 Proceedings of the Royal Physical Society. mand of Captain Palliser, by James Hector, M.D., and W. S. Vaux, M.A. (2.) On the Geology of the Country between Lake Superior and the Pacific Ocean, visited by the Government Exploring Expedition under the Command of Captain Palliser (1857-60), by James Hector, M.D. (8.) On the Physical Features of the Central Part of British North America, and on its Capabilities for Settlement, 1861, by James Hector, M.D., F.G.8., &c. From James Hector, M.D. The Address of Condolence to her Majesty on the death of H.R.H. the Prince Consort, which had been agreed upon by the Council, was submitted to the meeting by Alexander Bryson, Hsq. :— Unto THE QuEEN’s Most Excenttent Magzsry. May wt please your Majesty, We your Majesty’s loyal and dutiful subjects, the Pre- sidents, Council, and Fellows of the Royal Physical Society of Edinburgh, humbly desire to convey to your Majesty the expression of our deepest sympathy and condolence for the irreparable loss sustained by your Majesty and the Nation, in the lamented death of your Llustrious Consort His Royal Highness Prince Albert. We beg to assure your Majesty, that we feel the loss of your Royal Consort the more deeply, as he was the en- lightened Patron and earnest Student of those Sciences which we are incorporated to advance. May the Almighty God whose works we meet to study, and whose wisdom we adore, give to your Majesty and your bereaved Family that consolation and comfort which ever flow from Him alone. We remain, with the profoundest respect, Mapa, Your Majesty’s most faithful subjects and dutiful Servants, JAMES M‘Bain, President. JoHN ALEX. SmitH, Sec’. Gro. Logan, Zvreasurer. EpInBurGH, 22d January 1862. The Address was unanimously agreed to; and the Secre- tary was instructed to forward it to the Right Honourable Sir George Grey, Principal Secretary of State for the Home Department, for presentation to Her Majesty. Notes on the Habits of the Beaver. 329 The following Communications were then read :— 1. Notes on the Habits of the Beaver. By an Hye-witness, Jamxs M‘Kenzisz, Esq., an Officer in the Hudson’s Bay Company Service. Communicated by Anprew Murray, Esq. The Beaver is found over a wide extent of country on the American continent, extending east and west from the Atlantic to the Pacific, and probably from Lat. 48° to 54° north ; but on the slopes of the Rocky Moun- tains, where the climate is comparatively mild, he is met with much further north and south. My object, however, is not so much to define his geographical limits, as to make a few notes on his habits. Beavers build occasionally on the shores of lakes, but prefer the banks of rivers and streams. ‘They go generally in pairs; and having selected a convenient site near the banks of the river, the two clear a circular piece of ground, generally 6 feet in diameter, carefully removing everything on the sur- face. This done, they carry in their arms, walking on the hind feet, 5 to 10 Ibs. of strong clay from the river, and deposit it to a width of 2 feet all round the circle, thus making the diameter 4 feet ; then collecting long grass or branches of willow, they mix up the whole welltogether, so as to form a good foundation, In this way they build the walls to a height of about 10 feet, gradually narrowing ; and the whole has a rounded form, some- what like an oven. Unless they had some means of plastering or smooth- ing down the mud walls, the rain would certainly wear them away in a short time ; and although it is supposed that the beaver never uses his tail as a trowel, I have it from the authority of eye-witnesses that he does so—in fact, Nature has furnished the animal with the tool ready made to his hand. After he has laid the foundation, and, indeed, in process of lay- ing it, before the clay gets dry, he uses the trowel; and when the wall is raised to a certain height, he goes round the circle, carefully plastering every load he carries from the river and lays on his house. The lodge has neither doors nor windows, and the finishing hand is not put to it till he is far advanced with his bridge, or perhaps until he has completed it. Before the house can be completed, a subterranean passage is excavated from its centre to the dam or pond, and this at a depth varying from 2 to 6 feet, depending on the difference of level between the river and house. He then strews his floor with thin strips of willow tree, cut by him in the form of carpenter's shavings, for his winter's bed. The construction of the bridge shows even more ingenuity than the construction of the house, and is of various lengths, depending on the size of the stream. When only a few feet wide, the wall goes straight from bank to bank at right angles to the current; when larger, or about 40 feet wide, it is formed of a single curve; but when the river to be bridged is from 100 to 120 feet wide, the wall is formed into a series of curves, or undulations as it were. He understands pretty well the properties of straight and curved lines in his engineering works, and knows the mode best suited to the circum- stances in which he is placed. If his domicile is situated on a wide stream, he adopts that mode of construction which is best adapted to withstand the pressure of a great body of water and ice on the opening of the naviva- tion in the spring. The wall is about 12 feet high and 9 feet wide at bottom, but on the side exposed to the current it slopes with the stream, forming, perhaps, an angle of about 40°. At any rate, while the wall is about 9 feet wide at bottom, it is only 1 foot wide at top. He selects for the foundation pieces or logs of timber which are water-soaked ; but if he cannot find enough of these, any wood, either green or dry, will do, covering them with large stones, to prevent their rising to the surface. But logs thus placed on one another across a stream could not be so well 330 Proceedings of the Royal Physical Society. fitted together as to prevent the passage of the waterbetweenthem. 'Tomeet this difficulty, he plasters the side of the wall exposed to the current with a coating of clay some 2 or 3 inches in thickness; and this clay, as he has to travel through the water with it, he carries not in his arms, as in the construction of the house, but on his head, supported by hisarms. There is no doubt that the side of the wall exposed to the current is thus clayed, although I cannot well understand how it could withstand the action of the water for any length of time. If he bridged the stream in this way and clayed his bridge, it is clear that he would have always a large quan- tity of water flowing over the top, which would impede his operations ; and, to obviate this difficulty, he leaves an opening at either end for the passage of the water, to be shut up afterwards. Having finished the wall, the next thing to be done is to collect his winter’s supply of food. This consists of the bark of the ash, the bark and leaves of a certain kind of poplar, the bark and leaves of some kind of willows, and the fruit of the alder. A large poplar tree of about a foot in diameter, two beavers can cut down in half an hour’s time. It is afterwards cut into lengths of about 5 feet; and when he has got enough, he makes a road to the stream from 3 to 6 feet wide, by cutting down trees or shrubs which may be in his way. If the road be inclined towards the stream, he rolls the wood down before him; but if it be level, or nearly so, he takes hold of the wood by his teeth, and carries it forward. In the water he always trans- ports wood or branches from one spot to another in a similar manner. His wood will, of course, float in the water, and, if left to float, would soon become embedded in the ice, which in ordinary winters, in this cli- mate, is about 5 feet in thickness ; he therefore takes it to the bottom of the dam, which has a depth of water of from 10 to 12 feet, and either fastens it on end in the mud, or covers it with stones, to prevent its rising, and it will thus at all times be available for his purpose. He is now nearly ready for the long winter. There is, however, something more to be done. I have mentioned that he digs a subterranean passage from his house to his dam; on each side of this, and in some instances widely apart, he makes holes about 5 or 6 feet in the bank, generally communi- cating in the interior with one another, and with the main entrance to the lodge. In one of these he takes his food, for he seldom or never eats where he sleeps. The female has generally from three to six young at one time; the period of gestation is four months; and the young are produced, or first see the light, about the middle of May, and in the following August _assist in building the lodge. The young and old work together. When about a year old, they start in pairs to form new settlements, provided, like the best of colonists for a new country, with nothing else but good strong limbs and a fine set of teeth. Ifthere be an odd-fellow, he goes on his travels alone, and forms a small bachelor establishment for himself for the winter, unless, indeed, he meets a friend with kindred sentiments by the way. Sometimes two of the year-olds remain in the old house for another year, in which case the family in the following May is a large one, never, however, numbering more than twelve individuals. The usual number found in a lodge is from four to eight. They never build their lodges close together—they are generally from a quarter to half a mile apart. This no doubt arises from the circumstances that they cannot well dam the rivers or streams, and find a sufficiency of food, at shorter distances. The beaver remains shut up for the whole winter; during the day always asleep, and during the night taking his bath and his meals. In spring, however, he sometimes makes a hole in the ice to have a look at the country around him. Ido not know how he manages to do without air; so far as I could discover, there are no air-holes about his premises. Flate XVT. Toyal Physical Society, Edinburg = i hs WIN, <= el ; vi Sag ermal == Luc ANTEC) J Anderson MD, ai? HOLOTHURIA . On an apparently New Form of Holothuria. Sal In the coldest weather, the top or roof of the lodge is always moist or wet, while the sides are frozen, at least outwardly. It is certain that he can remain under the water for halfan hour at a time. He lives in the same lodge for two or four years, when, finding his food scarce, he removes to another locality, and builds as before. For instinct or intelligence he is at the head of the wild animals in this country, and lives longer, I believe, than any of them. Other animals, as for instance the young of the American hare or rabbit, the marten and lynx, perish by thousands in the spring, either by cold, or in seasons of high water, or from lack of their ordinary food ; but it is all the same to the beaver whether the season be wet or dry, hot or cold—the shores of every lake and the banks of every river furnish him with abundance of food. I do not know whether he will thrive in Britain; atany rate, the Zoolo- gical Gardens is not the best place for him; he is fond of solitude, and dees not like company. An island with a large lake would be the most eligible place for him, where, if set at large, he would soon shift for him- self. Of course, his usual food would require to be found on the spot. Dr J. A. Smith said, with regard to Mr M‘Kenzie’s statement that he could discover no air-holes in the lodges of the beaver, and wondered how they managed to do without air; it was probable the air got access through the comparatively looser structure of the top of the lodge, which Mr M‘Kenzie states is always moist or wet even in the coldest weather, while the sides are frozen outwardly. II. On an apparently New Form of Holothuria, By Joun Anprrson, M.D. Plate XVI. In the autumn of 1859 I dredged, from 5 fathoms of water in Bressay Sound, Shetland, the Holothuria which forms the subject of this memoir (Plate XVI. fig. 1). It was clinging to the inside of a dead and half-open Modiola vulgaris. When captured, it was of a cream-colour, slightly speckled with brown; but since it has been in confinement, it has sensibly deepened in colour. During the first months of its imprison- ment it was very lively, especially at night; during the day, when exposed to the light, it always contracted itself into a _hittle ball, confining itself to one spot, and that the one ex- posed to sun-light. The tentacles were always exposed at night, but were immediately retracted whenever any attempt was made to examine them. About the beginning of the second month of its confinement it became more sluggish, and remained for days contracted, never displaying its ten- tacles even at night. The body contracted so firmly upon itself, that many of the feet by which it was attached gave way, and were left sticking to the sides of the glass vessel in which it was confined. After remaining in this condition for some time, the integument about the centre of the body 332 Proceedings of the Royal Physical Society. at last ruptured, and through the opening a portion of the viscera were protruded, which ultimately sloughed away ; at the game time a considerable portion of the external skin desquamated, the animal not appearing to suffer much from the process, for the opening healed shortly afterwards. The animal has been kept in a small shallow vessel of sea-water, with only a little piece of sea-weed in it to keep the water in good condition. During by far the greater part of the nine- teen months of its confinement it remained contracted, seldom moving from one spot. The only food it could pos- sibly have obtained must have consisted either of micro- scopic animalcules or the spores of Alge. The animal is still alive; and I am therefore not in a position to say any- thing regarding its internal structure. The dorsal region of the body, when the creature is con- tracted, is of a deep purplish-brown tint, but the ventral surface is of a paler hue. The dorsal surface, when the creature is distended, approaches very much to the colour of the ventral aspect when in a state of contraction. When contracted, it is little more than a quarter of an inch in length, and about the fifth of an inch in breadth ; but when distended and moving about, it becomes double this length, and its breadth also is slightly increased. The five double rows of sucking-feet are unsymmetrical, the two dorsal rows being irregular in their distribution. The dorsal feet are much less numerous than the ventral, which they greatly exceed in size, and from which they differ very much in their undilated tips, and by their being seated in some instances upon rounded eminences or tuber- cles of considerable size. These feet are capable of com- plete retraction into the tubercles. Though the two dorsal rows of feet differ very much from the ordinary arrangement _of these organs in the Holothuriade, we can nevertheless trace faint indications of the double character of the rows. The three double rows of ventral sucking-feet are fully de- veloped; the feet are placed opposite to one another, and are dilated at their tips, but are only partially retractile. The animal walks upon the three well-developed rows; and if turned upon the aborted ones, it immediately recovers itself, On an apparently New Form of Holothuria. 303 and turns round to what appears to be its ventral surface. In the anomalous genus Psolus, as is well known, the loco- motive organs are restricted to a small flattened ventral disk, on which the three developed rows of feet are disposed. The arrangement of the feet in the animal under consider- ation is another instance of a like specialization of function, and indicates the tripod nature of the Holothurie. Viewed thus, this little animal is fraught with interest, and may serve to connect, by its gradation of form, the genus Holo- thuria, with its five well-developed rows of locomotive feet, and the genus Psolus. The tentacles (Pl. XVI. fig. 2) are ten in number ; eight of them are long, pedunculated, and alternately branched; and the other two are short and divided at their tips. They are all of a pale-yellow colour, very pellucid, and are about a fifth of the length of the body when it is fully extended. The two short tentacles correspond to the two tuberculated rows of feet of the dorsal aspect. The body of the animal is covered with calcareous pilates of an irregular form, perforated by nearly circular apertures (fig. 4). The plates found in the feet of the three ventral rows (fig. 7) are spindle-shaped ; but they change their form in the feet immediately surrounding the head (fig. 8), and become in appearance very similar to the plates found on the body-skin. ‘The plates of the dorsal tubercles and feet (fig. 3) resemble in their irregularity the plates of the body of the animal; and the same may be said of the plates occur- ring in the tentacles (fig. 6), in which they may be found extending to their ultimate divisions. The very delicate structure of the feet enabled me to examine them microscopically in the living animal; and when so examined, a continuous circulation of a minutely granular fluid may be seen, the current consisting of two _ streams—one passing along one side of the foot to the suck- ing-disk, and the other flowing back from this structure to the body of the animal. This little creature evidently belongs to Linneus’s genus Holothuria, which Van der Hoeven has lately revived with the following signification: — 334 Proceedings of the Royal Physical Society. “Feet of twofold structure and figure, some cylindrical, dilated at the tip, usually occurring in the abdomen only, others situated on the back, not dilated at the tip, emerging from warts on the back. Body cylindrical or flattened in the abdomen.” Having only found one specimen of this Holothuria, it would be premature, it appears to me, to describe it as a new species. ; Explanation of Plate XVI. Fig. 1. Holothuria, three times the natural size. Fig. 2. Buccal extremity and tentacles. Fig. 3. Calcareous plates of dorsal feet. Fig. 4. os os body-skin. Fig. 5. op F dorsal feet near head. Fig. 6. ar ae oral tentacles. if Portion of ventral foot, showing the form and arrangement of the plates. Fig. 8. Calcareous plates from feet surrounding the head. Fig. 7. III. Notes on the Ornithology of Caithness, By R. I, Suearer, Esgq., Ulbster House, and H. Osgporne, Esq., Wick. Communicated by Joun ALEXANDER SmitH, M.D. Part I.—By R. I. Suearer, Esq., Wick. I have been induced to gather together a full and authentic list of all the birds hitherto found in Caithness, the main aim being to induce others to exert themselves in this de- hghtful and interesting study ; and 1am confident that, had the ornithology of the county been understood and attended to by a greater number of persons, a much larger list could have been made. The all-sufficient reason I have for think- ing so is, that the present lst only exhibits twelve additional species within the last twenty years! In particular, that portion of the interesting and numerous family, the Syl- viadee, comprehending the Warblers proper, is almost utterly unknown—the only representatives known to us being the reed and wood warblers. This paucity, however, must not in any degree be considered as indicative of their absence from the county, but must, on the contrary, be ascribed to the fact that their haunts are far removed from, and, indeed, are forbidden ground to, the ordinary investigator and those interested in their economy. Although the northernmost ay a | ee Notes on the Ormthology of Caithness. 339 county in Scotland, and separated from the “ storm-swept Orcades” by only the narrow belt of the Pentland, through- out the summer the few wooded tracts scattered over it re- sound with the melody of divers species of this delicate and lovely family. A wide and untrodden field lies here before the first intelligent student of nature who may be privileged to follow and observe these summer visitants in their sylvan seclusion. The plantations of Stirkoke, the woods surround- ing Hempriggs House, and that paradise to the sportsman and naturalist the valleys of Berriedale and Langweil, are favourite and much-frequented resorts. Previously to 1840, Dr Sinclair of Wick had collected and prepared with his own hands all those in the fol- lowing list unmarked by an asterisk, amounting to the truly surprismg number of 191; therefore it will appear that to the Doctor those interested in the subject are deeply indebted. Another reason for making this list 1s, that almost every other county has already a published register of its birds; and the rich and varied catalogue which this county can present can be surpassed by but few within the three kingdoms. Our diversified list exhibits species that can hardly be exceeded in richness of colouring by the gaudy inhabitants of tropical countries, such as the gar- rulous roller ; natives of the warmer parts of Asia and Africa, such as the spotted flycatcher and the rose-coloured pastor ; and, contrasted with these, those splendid strangers from the frozen regions of the Arctic circle, the snowy owl, the jer-falcon, and the ivory and Iceland gulls. As instancing what has been done in the way of illustrating the ornitho- logy of this northern locality, I may in particular mention, although these are not the only works of a similar kind, the “Fauna Orcadensis” of the Rev. G. Low; the ‘ Natural History of Orkney,’ by Messrs Baikie and Heddle; the “ Tour in Sutherlandshire,” by the late Mr St John; and the catalogue published in the ‘ Zoologist,” by that enthusiastic naturalist, Mr Thomas Edward of Banff. I also cannot omit noticing some of the very rare and valuable birds which Dr Sinclair has been fortunate enough to secure within the bounds of the county, although I regret not being able to VOL. II. 2x 336 Proceedings of the Loyal Physical Soctety. give the details and date of the capture of many of them. — Of these, by far the most interesting is the little bustard, very few specimens of which have been obtained even in England, where the only authentic instances of its capture in Britain have been recorded. Montagu’s harrier, a species but lately discriminated from the common harrier, is a rare bird in the southern division of the kingdom, where its peculiarities and appearance first attracted the attention of the observant naturalist whose name it bears. The stock- dove, the ortolan bunting, the reed warbler, and the poma- rine skua, although not exactly rare in the southern counties of England, have never, according to Mr Selby, been dis- covered by him north of the Tweed. Baillon’s crake, the red-breasted goose, the ruddy sheldrake, and the hooded merganser, are among the very rarest British visitants, only one or two individuals of each species having been obtained, as recorded by the same authority in his “ Illustrations.” The additions made since 1840, distinguished by an asterisk, demand a passing remark. In the first order, the jer-falcon is added on the authority of the Rev. F. O. Morris, who re- lates in his “ British Birds” that one was observed near Thurso, by W. M. HE. Milner, Esq., M.-P. The snowy owl has lately been pretty frequently found. The first notice of it was given by Dr Sinclair, who possesses three indi- viduals, one of which, a mature bird, is perhaps the finest specimen in any collection in Britain. In the second order, the parrot crossbill was obtained by Mr G. Auld of Wick from some fishermen, in whose boat it alighted whilst at sea, and was kept in confinement for a considerable time. A single specimen of the lesser spotted woodpecker has been found by Dr Sinclair. The wryneck has been twice ob- tained, once by the gentleman mentioned above and once by myself. The European roller I saw at Ulbster in 1857. In the third order, Dr Sinclair has added the little bustard, which, considering how few are the species of the family Struthionide found in Britain, is a particularly interesting addition. In the fourth order, I have found the common godwit. In this order Dr Sinclair has included the dotterel (Charadrius morinellus), a very rare bird ; while, undoubt- Notes on the Ornithology of Carthness. 307 edly through inadvertence, he does not mention the ring dot- terel (C. hiaticula), which is as common as the other is rare. In the fifth and last order three new species have been , added—the bridled guillemot, found in abundance on our east coast every year, Richardson’s skua, and an Ivory gull, found by myself. This bird is stated, on the authority of a celebrated Scottish naturalist, not to belong to the common species, but one new to the British list. I have not, as yet, ascertained its name. The following is the complete list :— Rartores.—(first Order.) *Falco Islandicus (Jer-Falcon). Falco peregrinus (Peregrine Falcon), common. Falco subbuteo (Hobby), rare. I once saw one of these birds with Charles Wilkinson, gamekeeper. It was killed at Thrumster. Falco zsalon (Merlin), common. Falco tinnunculus (Kestrel), rare in winter, common in summer. Accipiter fringillarius (Sparrow-hawk), occasional ; only in autumn. Astur palumbarius (Goshawk), very rare; never to my knowledge. Aquila chryszta (Golden Eagle), occasional. Aquila albicilla (White-tailed Sea Hagle), breeds. Buteo lagopus (Rough-legged Buzzard), rare; only in Dr Sinclair ’s collection. Buteo vulgaris (Common Buzzard), rare. do. do. . Pernis apivorus (Honey Buzzard), very rare. do. do. ; Circus cyaneus (Common or Hen Harrier), breeds. Circus cineraceus (Ash-coloured Harrier), very rare. do. Circus rufus (Warsh Harrier), rare. do. do. _ Strix flammea (White or Barn Owl), rare. do. do. Ulula stridula (Tawny Ovl), rare. do. do. Otus vulgaris (Long-cared Owl), bred last year. Otus brachyotus (Short-eared Owl), breeds. *Strix nyctea (Great Snowy Owl). An adult specimen, caught alive at Kilmster, was kept for some time by Mr Osborne, but it ultimately escaped. InszssorEs.—(Second Order.) Lanius excubitor (Great Ash-coloured Shrike), thrice found. This bird was once captured by me in spring, in the act of attacking a linnet fixed in a hair snare, and itself got entangled also. J Cinclus aquaticus (Water Dipper), common. i Merula viscivora (Missel Thrush), common. : Merula pilaris (Feldfare), common ; seen in Caithness this year and last, in the beginning of August. Merula iliaca (Redwing), common. Merula musica (Song Thrush), common. Merula vulgaris (Blackbird), common. : Merula torquata (Ring Ousel), common. 4 Saxicola znanthe (Wheatear), common. Saxicola rubetra (Whinchat), common. P Saxicola rubicola (Stonechat), rare; saw one this year in the month of ak June, near Lybster. 338 Proceedings of the Royal Physical Soctety. Erythaca rubecula (Robin or Redbreast), common. Pheenicura ruticilla (Common Redstart), occasional. Pheenicura Tithys (Tithy’s Redstart), rare. *Curruca atricapilla (Blackcap Warbler), obtained last autumn by Mr Osborne. Salicaria arundinacea (Itced Warbler), occasional. ‘ Sylvia sibilatrix (Wood Warbler), occasional. *Sylvia hippolais (Chiff-chaff Warbler), first observed last autumn ; seen this year also. Regulus auricapillus (Common Gold Crest), common. *Parus ater (Cole Titmouse), observed this autumn; also in spring of 1862. Accentor modularis (Hedge Accentor), common. Motacilla boarula (Grey Wagtail), occasional. Motacilla Yarrellii (Pied Wagtail), common. Budytes flava (Yellow Wagtail), rare. Anthus pratensis (Meadow Pipit), common. Anthus arboreus (Tree Pipit), rare. Anthus aquaticus (Rock Pipit), common. Bombycilla garrula (Bohemian Waxwing), occasional; generally found dead. Muscicapa grisola (Spotted Flycatcher), occasional. This year and last year, about the end of May. Birds of the year seen frequently in a garden in Wick, in July. Muscicapa luctuosa (Pied Flycatcher), rare. Corvus corax (Raven), common. Corvus corone (Carrion Crow), occasional. Corvus cornix (Hooded or Royston Crow), very common. Corvus monedula (Jackdaw), very common. Corvus frugilegus (ook), very common. Pica melanolenca (Magpie), very common, Garrulus glandarius (European Jay), rare; probably introduced. Sturnus vulgaris (Common Starling), common. Pastor roseus (Rose-coloured Pastor), rare. Coccothraustes vulgaris (Haw/inch), rare. Coccothraustes chloris (Greenfinch), very common. Carduelis elegans (Common Goldfinch), occasional. Carduelis spinus (Sesken), occasional. Linaria cannabina (Common Brown Linnet), very common. - Linaria montana (Mountain Linnet or Twite), very common. Linaria minor (Lesser Redpole), occasional. Pyrgita domestica (Howse Sparrow), common, Pyrgita montana (Tree or Mountain Sparrow), very rare; obtained by Mr Osborne. Fringilla montifringilla (Brambling or Mountain Finch), very com- mon in the autumn of 1860. This finch has never come under my notice in this county, except in 1860, when it was very abundant. It did not keep separate, but mixed with other finches about the stackyards, picking up grain. Fringilla celebs (Chafinch), very common. Emberiza miliaria (Common Bunting), very common. Emberiza citrinella (Yellow Bunting), very common. Emberiza hortulana (Ortolan Bunting), rare. Emberiza scheniculus (teed Bunting), common. Plectrophanes nivalis (Snow Bunting), common. Plectrophanes lapponica (Lapland Lark-Bunting), found twice. Alauda arvensis (Sky Lark), common. Notes on the Ornithology of Carthness. 309 Alauda arborea (Wood Lark), rare. (?) Pyrrhula vulgaris (Common Bullfinch), rare. Loxia eurvirostra (Common Crossbill), occasional. * Loxia pityopsittacus (Parrot Crossbill), rare. *Picus minor (Lesser Spotted Woodpecker), very rare ; once observed. *Yunx torquilla (Wryneck) ; one shot at Stirkoke, and another at Rose- bank, near Wick. Certhia familiaris (Common Creeper), occasional. Troglodytes Europeus: (Common Wren), common. Cuculus canorus (Common Cuckoo), common. *Coracias garrula (Huropean or Garrulous Roller) ; seen at Ulbsier, and watched for two or three days. It was always followed by a small bird, in the same way as the cuckoo. Caprimulgus Europeus (Nightjar or Goat-sucker), common. Hirundo rustica (Chimney Swatlow), common. Hirundo urbica (Martin), common. Hirundo riparia (Sand Marti), common. Cypselus apus (Common Swift), common. Rasores.—(Third Order.) Columba palumbus (Wood Pigeon or Ring Dove), common. Columba enas (Stock Dove), very rare. Columba livia (White-rumped or Rock Dove), common. Turtur migratorius (Turtle Dove), occasional. Tetrao tetrix (Black Grouse or Black Cock), common. Lagopus Scoticus (Red Grouse or Muirfowl), very plentiful. These birds have frequently been reared and kept alive in an enclosure by Mr Osborne. They were very tame and familiar, and one pair bred on one occasion, hatching five healthy poults. Lagopus mutus (Common or White Ptarmigan), common, Perdix cinerea (Common Partridge), common. Coturnix dactylisonans (Common Quail), bred in 1860. A pair bred at Ulbster ; twelve eggs were laid and hatched ; I shot two of the young and the old cock in autumn. Such was their desire to skulk when danger was near, that several were caught by the hand. Phasianus Colchicus (Common Pheasant), common. *Otis minor (Little Bustard), very rare ; once observed. GraLLatores.—(fourth Order.) Ardea cinerea (Common Heron), common. Ardea purpurea (Purple Heron), rare. Scolopax rusticola (Woodcock), common. Scolopax major (Great Snipe), rare. Scolopax gallinago (Common Snipe), common. Scolopax gallinula (Jack Snipe), common. *Limosa rufa (Common or Red Godwit). Only one specimen, shot at Ulbster Loch ; two more were seen this year in the end of July. Totanus fuscus (Dusky Sandpiper), rare. Totanus calidris (Redshank Sandptper), common. Totanus glottis (Greenshank), rare. Totanus ochropus (Greenshank Sandpiper), rare. Totanus glareola (Wood Sandpiper), rare. Totanus hypoleucos (Common Sandpiper), common. Totanus macularius (Spotted Sandpiper), rare. Tringa variabilis (Purre or Dunlin), common. Tringa canutus (Knot), rare. Tringa rufescens (Buff-breasted Tringa), rare. 340 Proceedings of the Royal Physical Society. Tringa maritima (Purple or Rock Tringa), common. Tringa subarquata (Curlew Tringa), rare. Tringa minuta (Minute Tringa), occasional. Tringa Temminckii (Temminck’s Tringa), rare. Strepsilas interpres (Twrnstone), occasional. Numenius arquata (Common Curlew), common. Numenius pheopus (Whimbrel), occasional. Vanellus cristatus (Lapwing), common. Squatarola pluvialis (Golden Plover), common. Charadrius morinellus (Dotterel), rare. Shot on the Thrumster Moors, on a bare high hill. *Charadrius hiaticula (Ring Dottercl), common. Arenaria calidris (Sanderling) rare. Hematopus ostraleous (Oyster-Catcher) common. Rallus aquaticus (Water Rail), common. Crex pratensis (Meadow or Corn Crake), common. Orex porzana (Spotted Crake), rare. Crex Baillonii (Bazllon’s Crake), very rare. Gallinula chloropus (Common Gallinule or Water Hen), common. Specimens have been kept by Mr Osborne. They were very tame, and mixed freely with the poultry. Fulica atra (Common Coot), common. The same remarks apply to the coot. Naratores.—(Pifth Order.) Anser segetum (Bean Goose), rare. Anser ferus (Grey Lag Goose), common, breeds. Auser erythropus (White-fronted Goose), common. Anser leucopsis (Bernicle Goose), rare. Anser brenta (Brent Goose), rare. Anser ruficollis (Red-breasted Goose), very rare. , Cygnus ferus (Hooper or Wild Swan), occasional, Tadorna Belonii (Common Sheldrake), occasional. Tadorna rutila (Ruddy or Casarka Sheldrake), very rare. Anas boschas (Common Wild Duck or Mallard), common. Querquedula crecca (Common Teal), common. Querquedula acuta (Common Pintail), occasional. Chauliodus strepera (Gadwall), rare. Anas clypeata (Common Shovelier), rare. Mareca penelope (Common Wigeon), common. Fuligula Gesnerii (Scaup Pochard), common. Fuligula cristata (Tufted Pochard), occasional. Fuligula ferina (Red-headed Pochard), common. Clangula vulgaris (Common Golden-eye Garrot), common. Clangula histrionica (Harlequin Garrot), rare. Harelda glacialis (Long-tailed or Northern Hareld), common. Oidemia perspicillata (Surf Scoter), occasional. Oidemia fusca (Velvet Scoter), occasional. Oidemia nigra (Black Scoter), occasional. Somateria molissima (Common Eider), rare. Mergus albellus (Smew or White Nun), rare. Mergus merganser (Goosander), occasional. Mergus serrator (Red-breasted Merganser), rare. Mergus cucullatus (Hooded Merganser), very rare. E Colymbus glacialis (Great Northern Dwer), common. A year or two ; ago, a specimen was obtained, which had first been seized by the fish known as the “ angler,” or “ fishing-frog.”’ Both fish and bird a ate Notes on the Ormthology of Cacthness. 341 were secured alive by some fishermen. This occurred in Ackergill Bay. Colymbus arcticus (Black-throated Diver), rare, Colymbus septentrionalis (Red-throated Diver), occasional. Podiceps cristatus (Crested Grebe), rare. Podiceps rubricollis (Red-necked Grebe), occasional. Podiceps cornutus (Horned or Sclavonian Grebe), rare. Podiceps minor (Lattle Grebe or Dabchick), common. Uria troile (Common Guillemot), common. *Uria lacrymans (Bridled Guillemot), common. Uria grylle (Black Guillemot), common. This bird lays two eggs, _ though Mr Newman, in his work on Bird-nesting, says one. (Sce - Macgillivray’s ‘‘ British Birds.’’) Mergulus alle (Litile Auk), occasional. Alea torda (Razor-bill Auk), common. Fratercula arctica (Puffin), common. Phalacrocorax carbo (Common Cormorant), common. Phalacrocorax cristatus (Crested Shag or Green Cormorant), common. Newman says the shag lays five eggs; I have never found but two. Sula bassana (Solan Goose or Gannet), common. Procellaria glacialis (fudmar), rare. Puffinus cinereus (Cinerecous Shearwater), rare. Puffinus anglorum (Manks Shearwater), rare. Thalassidroma pelagica (Storm Petrel), occasional. Thalassidroma Leachii (fork-tacled Storm Petrel), rare. Lestris skua (Common Skuqa), occasional. An individual of this power- ful species was long kept alive by Mr Osborne. It was a handsome bird, the plumage being always kept in beautiful condition. It was extremely bold and fearless, but continued intractable and savage to the last. Captured in the adult state off Staxigoe. Lestris pomarinus (Pomarine Skua), rare. *Lestris Richardsonii (Richardson's Skua), common. Lestris parasiticus (Arctic Skua), occasional. Sterna hirundo (Common Tern), occasional. *Sterna arctica (Arctic Tern), only lately observed, but tolerably abun- dant. Sterna minuta (Lesser Tern), occasional. Larus minutus (Little Gull), rare. Larus ridibundus (Black-headed Gull), common. Larus marinus (Great Black-backed Gull), common. Larus fuscus (Lesser Black-backed Gull), common. Larus argentatus (Herring Gull), very common. Larus glaucus (Glaucous Gull), occasional. Larus islandicus (Iceland Gull), occasional. Larus canus (Common Gull), common. Larus eburneus (Ivory Gull), rare. % (Ivory Gull), new (see page 347). This gull was found flying about a small inland loch, in a very starved condition. Larus rissa (Kitiiwake), common. Part I].— By Henry Osporne, Hsq., Wick. (The specimens of the Blackcap and Parrot Crossbill were exhibited.) It will be observed, from the few additions made to _ the list of Caithness birds since 1840, that not much has 342 Proceedings of the Royal Physical Society. been done either in the way of discovering or discrimi- nating new species. Of the three last added, the chiff- chait (Sylvia hippolais) was shot at Ulbster, in July, by Mr R. I. Shearer, who subsequently procured another specimen. A fine male blackcap warbler (Curruca atri- capilla) was shot by myself on the 16th October, and a female of the same species on the 28th (the birds were ex- hibited). Besides the fact of these birds being new to the Far North, the dates are so late that it has been matter of surprise to all who have heard of the circumstance, and know something of the economy of the bird, how such a delicate member of the family of Sylviade could possibly subsist at such a season in this climate. With the excep- tion, however, that the male was not in song, both birds were as active and lively as they are described to be in mid- summer, and both, too, were in perfect plumage. I have observed, in cases where the swallow has prolonged its stay with us until far on in the season, that there was an evident lack of that liveliness, vigour, and power of flight, displayed, for instance, in the month of June; but no such peculiarity was observable in the blackcaps. This, for the most part, perhaps, may be owing to the fact that the blackcap, when insect food is scarce, can subsist on the smaller fruits, while the swallow is wholly insectivorous. While under my own observation, the blackcaps fed principally on the berries of the mountain-ash. The Naturalist-Hditor of “‘ The Field” newspaper, in commenting upon the occurrence of the blackcap in Caithness, truly remarks :—‘“ In the statement that the blackcap eats rowans, in Cacthness, in the middle of October, we have therefore three novel facts in natural history, instead of one.” The third and last addition was the cole tit (Parus ater), shot in a narrow belt of plantation about a mile from Wick. Mr Sandison, who shot this specimen, also procured another, some days after, from the country. This beautiful bird, although common in most Scottish counties, has not hitherto been recorded as occurring in Caithness. In addition to these, a crossbill, which some authorities have pronounced to be Lowxia pityopsitiacus (the | bird was exhibited) was found dead in the neighbourhood of — Notes on the Ornithology of Couthness, 343 some woods near Lyth; but this species, as may be seen by the catalogue, has occurred once before, some fishermen having caught a male which alighted in their boat at sea. In reference to the nesting of our birds, I am not aware that we possess anything either novel or peculiar; but a few random observations may not be altogether without interest. The most striking example of gregarious nidification the county can show, is exhibited on an island in the Loch of Stemster, where some thousands of the black-headed or laughing-oull (Larus ridibundus) congregate in spring. The egos deposited on one-half of the island only are taken in the season, and these are lifted at short intervals, the numbers taken on some occasions being almost fabulous. They are valued as an edible of great delicacy. Round the edge of this island, among the rushes and other covert, several species build and rear their young. The nest of the mallard (Anas boschas), the eggs invariably concealed beneath the downy mass which the female plucks from her breast, is frequently met with, varied now and again by the massive and some- times floating structure of the coot (Fulica atra). It is almost certain, also, that the tufted pochard (Fuligula cristata) breeds in the vicinity, as specimens are observed constantly throughout the summer months. In Mr Selby’s time, this pochard was not known to breed in Britain, but the later work of Morris contains several instances. The Arctic tern (Sterna Arctica) breeds, among other places, ina piece of moorland in the vicinity of a loch about four miles from Wick. In the breeding season this tern may be observed following the course of the river in its flight to and from its feeding-grounds, which are at the mouth of the river and round the bay. During its journey I have observed it occasionally, but not often, stop suddenly in its flight above the river, apparently attracted by some small fish, remain suspended, like the kestrel, for an instant, and then drop headlong upon the object that had attracted its attention. It is in the bay, however, where this bird chiefly finds subsistence ; and here the habits of this tern, and of several species of gulls, may be observed under the most favourable circumstances. The principal prey of the VOL, I, Au 344 Proceedings of the Royal Physical Society. Arctic tern appears to be the sand-eel or sand-lance (Ammo- dytes). ‘This rather curious fish appears in our bay occa- sionally in prodigious shoals; indeed, one of our most observant fishermen lately informed me that the masses of these fish he has seen on our coast exceeded by far anything of the kind he ever saw, not excepting the “races” or ‘‘banks” of herrings, which are described (principally by sanguine ship-captains) as being something prodigious. Large numbers of sand-eels are exhumed from a sandbank at the mouth of the river. They are used as bait, and numerous fishermen visit the bank when the tide has ebbed, armed with an instrument resembling a corn-hook, with which they dexterously drag to light the buried eel. I witnessed a foray of this description in spring last; but although this was not the first occasion, I was attracted in this instance by the number of sea-fowl that fluttered over the fishermen’s heads, and came almost within reach of the weapons in their hands. The Arctic tern, the lesser black- backed gull, and the kittiwake were the species that jomed in the pursuit. The kittiwakes were the boldest, or rather the most familiar, of the three; and at a distance, you could hardly say with certainty whether the eel just brought to light was destined to find the fisherman’s basket or the kittiwake’s maw. It was almost a neck and neck race, and Piscator very frequently had not much to spare. That large and splendid species, the great black-backed gull, breeds on favourable stations all along our east coast. What appears to be favourite situations are those insulated rocks to which there is no access by land. On the flat and grassy tops of these gigantic pillars, the black-back builds and rears its progeny, which resemble the young of the her- ring and other gulls. Sometimes such a “stack,” as these pillars are termed, is occupied by two or three pairs; in other instances a single couple hold undisputed sway, and monopolise the isolated territory. When the haunt of these gulls is intruded upon, the whole colony rise screaming over- head, making a terrific din; but above all the uproar, the hoarse croak of the “ Saddle-back” may be distinguished. The lesser black-backed and herring gulls occasionally Notes on the Ornithology of Caithness. 545 sweep within reach, but their larger associate keeps far above, and seldom ventures within gunshot. On one of these ‘‘ stacks,” situated in Sinclair’s Bay, I have seen shags and cormorants sunning themselves in every niche, the top even being occupied by numbers of these sombre gentry. The black-back is extremely wild and vigilant, and conse- quently difficult to approach ; the only time when it ventures within reach of a gun, being in the breeding season, when it usually becomes a degree bolder. This gull is also very jealous of the neighbourhood of hawks and crows, having in especial an antipathy to the hooded crow. From its size and fierceness, it is generally monarch of all it surveys, the raven even succumbing to its attacks. In the last breeding season, however, the district received a visit from a stranger before whom all birds fled, the great black-back even making discretion the better part of valour. This was a white-tailed or sea eagle (Halietus albicilla), and his presence evidently caused the more alarm, from the fact that an eagle is seldom or never seen in the vicinity. An observer who carefully watched this powerful depredator while beating the margin of a loch not far from the edge of the rock, saw him slip over the precipice and shoot along about half-way between the top of the cliff and the sea. Hardly had he made his appearance, when a rush of birds seawards took place. Hverything that could fly left the rocks, and the terror and confusion that ensued was remarkable. This continued during the whole course of his flight, and his appearance was invariably the signal for a hurrying of the scared masses out of the reach of danger. So numerous, and so very much frightened were the birds, that the progress of the eagle could be traced, long after he himself was invisible, by the strings of seafowl, of various kinds, that persistently con- tinued to seek safety in flight. It was long before gull and guillemot got over their fright, and matters resumed “ the even tenor of their way.” The Arctic skua, the lesser black-backed gull, and the common gull, breed in a remote moorland district in the centre of the county. Here there are numerous pools or patches of water, known as “ doo-lochs,” of various sizes and shapes, studded with mossy mounds or islands, which 346 Proceedings of the Royal Physical Society. are usually as high above the surface as the surrounding ground. On these mounds the birds, for the most part, rear their young with safety. Great numbers of eggs are de- stroyed, however, as, in consequence of there not being space enough on the detached portions for the multitude of birds that resort hither in the season, numbers of nests are built on the margins of the pools, which are robbed by herd- boys and occasional visitors. I have seen some excellent specimens of the Arctic skua shot in the neighbourhood of these lochs in spring last by a collector. The lesser black- backed gull does not restrict itself apparently in the choice of a situation for breeding, as its nest may be found in- land on these moors, as well as on the “ stacks” frequented by the great black-backed and herring gulls. In the inland district above-mentioned, the curlew breeds regularly, and I have good reason to believe that it also forms a breeding- station of the whimbrel (Numenius phwopus). The nest of the kestrel may frequently be met with along the east coast. A few pairs of peregrines still manage to rear a brood here and there amidst the precipitous rocks, but this bird exists in greatly diminished numbers. The sparrow-hawk is much rarer with us than the two species above-mentioned, or than the hen-harrier or merlin. The hen-harrier is known to breed in a retired hilly district about twenty miles from Wick. The merlin, the smallest and most beautiful of our falcons, builds its nest among the heather, usually selecting a situa- tion where the growth is luxuriant and abundant. On one occasion, some years ago, I accompanied a gamekeeper and his two sons on an expedition to the hills of Yarrows, dis- tant about seven miles from Wick. The object of the expe- dition was the destruction of a couple of merlins, which had built their nest amidst the heather on a gentle slope, which ran backward from a narrow valley or ravine. It was anti- cipated that, by keeping this hollow until opposite the nest, both birds might perchance be secured in its neighbourhood. The desired point was reached, the guns (three) were pre- pared, and the trio were just on the point of leaving their hiding-place, when the shriek of the male bird, giving the alarm, was heard, and on looking up the little fellow was _ descried far overhead, sailing in circles, and anxiously watch- Ornithological Notes. 347 ing every movement. Not a moment was to be lost, and the three, ranged in line, left their hiding-place and ad- vanced rapidly on the nest. If the female still remains, her chance of ezcape is a poor one, for she is now within range of six barrels! She sits so close, however, that doubts are beginning to arise, when up she springs and dashes rapidly off, brushing the heather in her flight. She has not flown far when a single shot is fired, and poor falco drops among the heath with a broken wing. The male escaped on this occasion and was not seen again, although diligent search was made for some days afterwards. The nest con- tained four eggs, and was situated where one would rather expect to find the nest of the red grouse. Dr J. A. Smith said, naturalists were indebted to Mr Shearer and Mr Osborne for their valuable list, with its accompanying details, of the birds of Caithness. He had requested Mr Osborne to add some notes on the nesting of the birds, and was sure the Society would agree with him in the great interest of these communications; he only wished a similar careful list of the appearance and nesting of the birds, could be got from all the counties of Scotland. The capture of the ivory gull, referred to by Mr Shearer as new (page 341), had been brought under the notice of the Society by Sir W. Jardine (see Proc., vol. i. p. 4; and vol. ii. p- 07). The specimen was described by him as being the Pagophila brachytarsus (Halboll), and the first time it had been observed as occurring in this country. IV. Ornithological Notes —Larus glaucus (Glaucous gull), Mergulus alle, (Little Auk), &c. (specimens exhibited), By J. A. Smiru, M.D. A fine specimen of the Larus glaucus, the great white- winged or glaucous gull, was sent for exhibition by Mr Kdward Hargitt. It is a bird of this year, and was shot on Holy Island, near Berwick, in the third week of November. Dr Smith also exhibited a specimen of the Little Auk, re- cently shot in the Firth of Forth. This bird is an occa- sional winter visitor, generally after severe storms. It occurs abundantly in the Arctic regions; and he might mention in regard to it, that the late Professor Jameson used to exhibit 348 Proceedings of the Royal Physical Soctety. a specimen, presented to the Museum of Natural History in Captain, afterwards Sir Edward Parry, which was captured by him in the year 1827, as far to the north as Lat. 82° N. V. Dr Smith exhibited plaster casts of the skull of the famous Gorilla, and also of its brain cavity. Mr Alexander Stewart, No. 1 Surgeon Square, had been most successful in making these casts; and from him specimens could be obtained. Wednesday, 26th February.—Joun Cotpstream, M.D., President, in the Chair. Norman Bethune, M.D.; H. W. Mitnish, Esq., M.R.C.S.L.; and William M‘Nab, Esq., Royal Botanic Gardens, were elected members of the Society :— The Secretary stated he had received from the Right Honourable Sir George Grey an official intimation of the Society’s Address of Condolence having been duly presented to her Majesty. The following Donations to the Library were laid on the table, and thanks voted to the donors :— 1. (1). Meteorological Observations made at Providence, R.I. By Alexis Caswell. October 1860.—(2.) Meteorological Observations made near Washington, Arkansas. By Nathan D. Smith,M.D. October 1860. —(3.) Researches upon the Venom of the Rattlesnake. By S. Weir Mitchell, M.D., Washington. January 1861. From the Smithsonian Institution, U S.A.—2. Second Report of a Geological Reconnoissance of the Southern and Middle Counties of Arkansas, made during the years 1859 and 1860. By David Dale Owen. Philadelphia, 1860. Pre- sented through the Smithsonian Institution—3. Proceedings of the Boston Society of Natural History. Vol. VII. 16-28, and Vol. VIII. 1-4. From the Society.—4. On the Sounds caused by the Circulation of the Blood. By Arthur Leared, B.A., M.D., Dub. London, 1861. From the Author. , The following Communications were read :— I. Exhibition of Drawings, by Native Artists, of Animals collected in India, belonging to the different Great Divisions of the Animal Kingdom. By Watrer Extiot of Wolfelee, Esq. Communicated by Joun Cotpstream, M.D. After some introductory remarks on the occasion of his occupancy of the chair for the first time since his re-election as one of the Presidents of the Society, Dr Coldstream ad- verted to the great loss which the Society had recently sustained in the death of Mr John 8. Livingston, one of the Exhibition of Drawings by Native Artists in India. 349 office-bearers,—a young naturalist whose talents and ex- tensive acquirements had given promise of much usefulness. Dr Coldstream said, that long and intimate acquaintance- ship with the deceased enabled him to bear testimony to the thoroughness of his habits as a student; to his carefulness in research; to his probity and moral worth. Of his capacity for acute generalisation, the Society had been favoured with a striking proof in the able paper ‘‘On the State of our Knowledge respecting Metamorphism in the Mineral Kingdom,” which he read in March last. This, along with a memoir on the effects of anesthetics on plants, made Mr Livingston’s talents widely known, and led him into extensive correspondence with men of science. His modesty and courtesy of manner were as remarkable as his acquirements, and endeared him to a large circle of attached friends. Dr Coldstream then submitted for the inspection of the members a large collection of drawings in water colours, of various Indian animals, chiefly insects, which had been made at the instance of Walter Elliot, Hsq., lately a member of the Supreme Council of Madras. These remark- ably beautiful drawings were executed by native artists, under the eye of Mr Elliot. The accuracy and elegance of the drawings were much admired, and a hope was expressed that many other residents in India would avail themselves, as Mr Elliot had so successfully done, of the talents of the natives, to extend our knowledge of the beautiful produc- tions of our eastern empire. IT. Observations on British Zoophytes, 1. Atractylis arenosa. 2. Atractylis miniata. 3. Laomedia decipiens. By T. Srrerniun Wricut, M.D. (Plate XV.) 1. Atractylis arenosa. This zoophyte was described by Mr Alder at the last meeting of the Society. In September last I found a large female specimen at Largo, and was fortunate enough to have an opportunity of studying its anatomy and repro- duction. The polyp-stems are, as Mr Alder has shown, funnel-shaped and expanding at the top. From them the milk-white polyps issue, each furnished with an alternat- ing row of long tentacles. The scleroderm, or corallum, is 390 Proceedings of the Loyal Physical Society. covered by a thick layer of colletoderm, which is con- tinued over the body of the polyp, and which, when the polyp retires within its tube, fills up the top of the tube by its cushiony folds, so that the polyp is completely hidden, and the funnel appears as it were closed by a valve. The colletoderm in my specimen was coated and impreg- nated with mud. Mr Alder’s specimen was covered with grains of fine sand. I was at first inclined to believe that this zoophyte was merely a variety of Atractylis repens, which, with its medusoids, I have already described to the Society ; but after it had been in captivity a few days, I found that it was beginning to put forth ovisacs, one on opposite sides of the polyp-stems (Plate XV. fig. 7). The mode of reproduction in this zoophyte is unique amongst the Tubulariade, though I have noticed and de- scribed it in the Sertularias and Campanularias. The female generative sac of Atractylis arenosaresembles that of Hydractinia ; it is a simple sac formed of ectoderm, or the outer layer of the ccenosarc, enclosing a similar sac of endoderm, the “ placenta,” the whole being covered by a layer of scleroderm and colletoderm. Between the placenta and the ectoderm a large number of ova are developed, each showing a germinal vesicle and spot (fig. 8). When the ova are sufficiently advanced for extrusion from{the generative cavity, the investments of the sac are ruptured, the sac assumes a long, cylindrical form (fig. 9), and a most labo- rious process of parturition commences. With each pain the ectoderm of the sac contracts laterally, like the bell of a Medusa, and at the same time the placenta (fig. 9 c) is dilated by fluid pumped into it from the somatic cavity of the zoophyte, so that the ova, which are floating in a milky fluid, are forced against the summit of the generative sac. Meanwhile, another process has been going on,—the ex- ternal surface of the summit of the sac has been secreting a thick cap of gelatinous colletoderm (fig. 9 d), which is to ~ form a nidus for the further development of the ova. The contractions become still more violent, until the ova are confined in a mass at the dilated upper part of the sac; this last is ruptured, and they are forced into the gelatinous cap, Observations on British Zoophytes. 351 which still remains attached to the summit of the empty generative sac (fig. 10d). The ova now undergo fissure, and are developed into planule within their nest, then at last escape, and, after swimming in the water, doubtless become fixed and converted into polyps. Atractylis arenosa, although it gives off an immense num- ber of young, is one of the rarest zoophytes on our coast, probably on account of the low viability of its planule. While Sertularia pumila, one of the commonest species, and which produces its young in the same way, will quickly hne the vessel in which it is kept with forests of young zoo- phytes, not a single planula of Atractylis arenosa, of the immense number that were given off by my specimen, ever attained the polyp stage. We have in this zoophyte the reappearance amongst the Tubulariade of a mode of gelatinous nidification, which ob- tains in various orders of the animal kingdom,—in the Pro- tozoa, the Mollusca, the Annelide, the Insecta, and even amongst the Vertebrata, as in the common frog. We may ask, How is it that the ova of Hydractinia and Coryne are discharged into the water to float about without any pro- tection, while those of Atractylis arenosa, the Sertularias and Laomedias, require such various provisions for their protec- tion ? but we do not find anything in the physiology of the zoophyte to answer the question. 2. Atractylis miniata. (New Species.) Polypary yellow dendritic, branches given off at an acute angle from the stem, crooked, wrinkled but not ringed. Polyp with eight alternate tentacles, buccal cavity silvery, endodermal lining of stomach bright red-lead coloured. teproduction not observed. This zoophyte was found on stones at Largo, in little gnarled shrubby trees about an inch high, exposed at the lowest tides. The bright yellow colour of the polypary at once strikes the eye, which is also arrested by the gaudy colour of the minute polyps. These appear to be marked by two broad internal patches: one, correspond- ing to the buccal cavity, of a dense silvery white ; the other VOL. II. 2% 302 Proceedings of the Royal Physical Society. to the cavity of the stomach, of a brilliant reddish orange. I have also found very minute specimens of this species at Granton , 3. Laomedea decipiens. (New Species.) Polypary minute; stem filiform flexuose, with from one to five branches, each bearing a cell; the stem is annu- lated with about five rings above the origin of each branch; the branches are annulated throughout; cells widening rapidly towards the top, with even double rims. Polyp, with about sixteen tentacles and trumpet- shaped proboscis. This pretty little Laomedea resembles much the Laomedea neglecta of Alder, except that the margin of the cell is even, and has the appearance of being double for about half its length from the rim, though, from the extreme delicacy of the cell, this character is only made out with difficulty. The reproduction of this zoophyte resembles exactly that of Laomedea lacerata, except that each gelatinous nest of A. decipiens contains only three ova, while that of L. lacerata contains six or eight. Description of Plate XV.—Atractylis arenosa. Fig. 7. Polyp-stalk with two ovaries, the scleroderm covered by layer of colletoderm. 8. Ovary with colletoderm and scleroderm removed, showing layer of ova between endoderm and ectoderm. 9. Advanced stage of same: a, ruptured scleroderm; b, ectoderm; ¢, en- doderm; d, layer of colletoderm. 10. Same, with ova extended into gelatinous nest. III. On the Geological Age of the Pagan Monuments of the Outer Hebrides. By Captain F. W. L. Tuomas, R.N. Some recent observations made upon the geological changes that have taken place since the so-called Druidical circles were erected in the Long Island, will, it is presumed, be inter- esting to the Society; although any conclusions from these observations can only be valued as first approximations to a knowledge of the era of the unknown founders of these gigan- tic monolithic structures. It forms no part of the present subject to describe these monuments farther than to state, that, as in the Orkneys, in one locality of the Lewis several of these circles are placed On the Pagan Monuments of the Outer Hebrides. 353 within a short distance of each other; but no peculiarity is observable in the selection of their position ; and, from all that is known at the present time, their place of site appears to be accidental, or at least chosen without any distinct motive. One of these circles, the far-famed stones of Callernish, occu- pies the flat of a ridge of hilly ground, while two others are near together on a wet and boggy moor, at the distance of a mile to the eastward of the first. If the circles situated on the moor had been visited two or three years ago, nothing but afew gray blocks even with, or protruding two or three feet above the bog, would have been seen, and even many of the stones of the large circle of Callernish were completely grown over and buried in peat. By the liberality of Sir J. Matheson these three circles have been excavated, and it was then found that the peat had accumulated to the height of between five and six feet. From an attentive examination of the founda- tion of these circles, I arrive at the conclusion that the stones were pitched before the growth of peat had commenced, or at least at the very commencement of the peat-forming epoch. The upright stones are founded in the (so called) boulder-clay which overspreads this, with most other parts of Scotland, and the peat rises uniformly from the clay to the surface, which would not be the fact if holes had been dug in the peat to receive the stones. Besides, some stones that had early fallen (in the smaller circles) rest upon the clay without any peat below them ; and still further, in two of these circles are loose heaps of stones,—“ cairns,” as they are called, the grave-mounds of the illustrious dead,—which also rest upon the clay, without any intermediate floor of turf. If any peat had grown, it would be found beneath these cairns, for I consider it childish to suppose that it would have been cleared away. At the excavation of a tumulus at Stennes, in the Orkneys, which was presumed to be of or about the same age as the adjacent stone circles, the heath and moss on which the materials of the tumulus had been heaped were found in as good preserva- tion as when the mound was made, Besides the circles named, there are others, both in Lewis and Uist, which are only discovered by an occasional stone peering above the surface; and I see no reason to doubt that oo4 Proceedings of the Royal Physical Soctety. some of these Pagan monuments are entirely buried and out of sight. I produce a stereoscopic photograph of the Callernish circle, which fortunately shows, by a difference in the depths of shade, the height to which the peat had grown around the stones; two of them, to the left hand, were entirely covered. If, then, it is admitted that the stone circles of the Lewis were placed before, or only when the peat began to form, and that the peat has grown five feet since that time, it is evident that the least age of these monuments would be known if the annual increase of peat was known. But I am unacquainted with any data from which to form an estimate, and there is a wide difference in the opinions held on that point. One prac- tical gentleman assured me that the Lewis peat grew an inch every year; at this rate the entire deposit might have taken place in about sixty years. Another estimate is nine inches in a century, but we require twice the number of years that this ratio would give to get back to Pagan times. As I am unacquainted with any class of facts that bears upon the sub- ject, it is not worth while to offer any conjecture at the present time. I may mention, however, that to my surprise, one of the Lewis bards has a tradition that at one time there was no peat in Lewis ; and it is also to be noted, that almost always, on excavating any of the Pictish dwellings, pieces of burnt stick (charcoal) are found at the fire-hearth. I do not wish it to be inferred, however, that there was no peat to be then found— only that sticks formed part, if not all, of the fuel then in use. A most instructive section was made a few years ago on the banks of the Creed, in the policies around Stornoway Castle. My notes are mislaid, but if my memory is correct, a cutting was made through a peat-bank to form a road, by which a perpendicular section of between eight and nine feet in height was exposed. About the middle of the bank, that is, three or four feet below the surface, was and is the place where a fire had been kindled; a few stones had been put round on which ~ to stand the kettle, probably to boil a salmon, and bits of char- coal still remain in the ashes. The banks of the Creed could still supply enough indigenous birch to boil a craggan. Very erroneous opinions are abroad concerning the cause On the Pagan Monuments of the Outer Hebrides. 355 and growth of peat ; in most books I see the observations of a certain Lord Cromarty are quoted, from which it is most illo- gically inferred that all peat is the result of the decay of forest trees. So wide spread is this allusion, that it has been quoted to me where the peat-banks were visibly and presently telling their own history. Without denying that the decay of forest trees in marshy ground will form peat, it requires only the most superficial observation to know that wood peat occurs only in the most homeopathic quantity in, at any rate, the islands of North Britain. It fortunately does occur as an exceptional instance, and then in so marked a manner as to leave no chance of confounding wood peat with the almost universal moor peat. The bulk of the peat of the northern and western islands is made up of the roots of rushes and moor-grass; the mosses help to keep it constantly wet, and the tormentilla (and probably other plants) supplies tan to the moss, and prevents it from decomposing into vegetable earth. Such were the conditions when the peat first began to grow, and such they still continue. I have looked over thousands of sections of peat banks in which there was no difference in the composition of the peat, from the base where grew the first peat-forming plants to the surface at the present moment, excepting consolidation towards the bottom from time and pressure. When the surface of a peat bank has been exposed for some time to wind and rain, the most solid, as well as the spongier portions of the peat will be found disintegrating into laminze, which lamine probably represent the annual growth, and if they were distinct enough to be counted would indicate the age of the peat. Irom whatever cause, there was a time when the general surface of the country was bare and lifeless, which was followed by a growth of plants, in no way differing from those that are now struggling for existence upon the moor. And from what has been said before, it would seem that man made his advent here at much about the same geologic time. A common tradition of the Lewis is, that the ground was once entirely covered with forest trees, and that the wood was burnt down by the Northmen to deprive the aborigines of the shelter that it afforded. In almost all traditions there is 356 . Proceedings of the Royal Physical Society. some relation to fact; but without going into the history of this opinion, it will be enough to notice, that as far as I am aware there is but one place in Lewis where the remains of forest trees are to be found. ‘The roots of firs over twelve inches in diameter occur near Balaline, in the parish of Lochs, and only there. These roots are always on the clay soil, for neither bush nor tree is found with its roots in the peat. But although in a thousand cases the section of a peat bank, from its surface to its base, exhibits only a succession of marsh plants, a patient observer will here and there find a spot where the foundation of the peat is a floor of twigs and leaves. This, as stated before, bears only a minute proportion to the moor peat of the country. When examined it appears to be made up in great part of the twigs of the birch, but I have no doubt that the berry and bush of the mountain ash, the larch, the aspen, and the willow could be detected. In fact, it so happens that in this strange country, where many of the manners of the tenth century still exist, the method by which this peat of scrub and brushwood was formed can still be seen. On the small islets in the lakes, to which neither sheep nor cattle can gain access, a dense mass of scrub still survives. The heather will grow four feet in height, and above that may be seen the red berries of the mountain ash, or, if in spring, the catkins of the willow, or the pendant leaves of the aspen, with briers and brambles to interlace the whole. In the face of some cliffs and banks, and even in a few re- mote spots, the holly, hazel, aspen, birch, and willow, still struggle against an adverse climate as they did a thousand years ago. I have been thus particular in pointing out the limited quantity of wood peat, and where it occurs, its position, rest- ing upon the boulder clay, for a purpose to be more particu- larly described at the close of this paper; and I pass on to notice some important geological changes that have taken place in the most recent or peat-forming era. My official duties led me last summer over several hundred miles of the most tortuous coast-line imaginable. Between North and South Uist lies the large island of Benbecula, and about five hundred others of different sizes and shapes; most On the Pagan Monuments of the Outer Hebrides. 357 of these can be approached on foot at low water, and the rest are only separated by shallow channels. On going round the coast I began to notice that the peat banks formed frequently the sea-margin at high water; and feeling that it was a point of some geological importance, I noted the places on my sketch of the coast, till at last finding that the phenomenon was ex- tremely common, occurring perhaps twenty times in a day’s walk, it was no longer necessary to record its occurrence. After examining hundreds of examples, I came to the conclu- sion that, in these instances, there was no other way of accounting for peat banks having that position with regard to the sea-margin, than by the subsidence of the land. In many of the cases referred to, the peat rests at once upon the naked gneiss. Now, the surface of the gneiss is as rugged as, and not very unlike what, the surface of the ocean would be if it were suddenly solidified in the middle of a violent storm. The peat has grown over the undulatory surface, but, as was to be expected, is deepest in the depressions, where I have sometimes seen it in section more than ten feet in height. Let it be sup- posed that the relative levels of land and sea remained the same until the formation of peat had occurred, and then that the land began to subside. The effect would be that when the sea reached the foot of the peat banks small cliffs would form, identical in their features with those of clay or gravel, or any other soft material. But from the extreme softness of the peat the sea would quickly eat it away, and work itself into all the sinuosities of the surface gnciss that were below the level of high water. This is what has happened around Benbecula ; the sea at high water flowing in amongst the knolls, at first forming a simple gap, then branching out like the arms of a tree; at a further stage in the destruction of the peat, a group of islands is formed, till at last the whole vegetable soil is washed away, and a few bare rocks serve to point out where but one generation ago the cattle have pastured and corn has grown. Some of these rocks, which are now completely bare, still bear the names of particular plants that once grew upon them. It is difficult in words to convey an idea of the appearances and of the facts; but an inspection of the coast would show that the peat could only have been brought into 358 Proceedings of the Royal Physical Society. its present position by the subsidence of the land. There are, indeed, but two other ways by which the peat can be found to form the sea-coast; one is by the action of the sea upon the shore, the other by the peat advancing to the sea by slip. But neither of these cases will apply to the sea threading in among the knolls and hillocks, eating out holes at first, which become pools, then lagunes, till at last the land that enclosed them is all gone. It must therefore be accepted asa fact, that the land has subsided (and is subsiding) since the peat began to form, and, consequently, that the stone circles of the Lewis are of an age anterior to that subsidence ; it follows, then, that if the rate and quantity of subsidence were known, and supposing it to be uniform, we should arrive at the least age of the Pagan monuments. Although we cannot arrive at the whole quantity, we have fortunately a measure of a part of that subsidence ; this is afforded by what have foolishly been called submarine forests, but which are in fact submerged peat-banks. In the Orkneys I have noted six places at which submarine peat is said to be found; at Otterswick, in Sanda, I have seen the people digging 1t at low water for fuel. The peat was mainly composed of twigs and leaves, and the seeds of the birch were plentifully scattered through it. There were also many gnarled pieces of wood, of the thickness of a man’s arm. I was informed, on describing the kind of peat found at Otters- wick, that the same sort of fuel may be got at Balranald, on the west of North Uist, at the level of low water. Peat also occurs below mud and gravel between tidemarks at the head of West Loch, Tarbert, in Harris; and Martin, the historian of the Hebrides, speaking of Pabbay, an island in the Sound of Harris, says, ‘‘ The west end of this island, which looks to St Kilda, is called the Wooden Harbour, because the sands, at low water, discover several trees that have formerly grown there. Sir Norman Macleod told me that he had seen a tree cut there, which was afterwards made into a harrow.” Se-— veral traditions could be added, of places now submerged that were formerly the sites of chapels or houses; and I think it may be taken as proved, that since the commencement of the peat-forming era, the land has sunk or subsided twelve Description of Fishes from Old Calabar. 309 feet at least ; how much more, there are no means of finding out, for the submarine peat may have grown near to, or far away from, the high-water level; neither do we know how far the submerged peat-banks extend beyond the level of low water. From the foregoing facts, it may be inferred that very soon after the climate of the Hebrides became such as to admit of the growth of vegetation, man emigrated te these shores, bringing with him the arts of agriculture and navigation, and a religion that induced him to honour the memory of his illustrious dead. Since then the tanned vegetable mould has accumulated to the height of at least five feet, and also since man’s advent here the entire land has sunk twelve feet or more. These data may, by a more extended investigation, form a measure to the time of his arrival; at present I must content myself with having pointed out the facts. IV. Description of several Fishes from Old Calabar. By Joun CLeLann, M.D., Glasgow. Communicated by Wittiam Turner, M.B. The specimens now exhibited were given me by our late lamented Treasurer, Mr Oliphant, and it was his desire that they should be shown to this Society. They come from Old Calabar. They are not in very good preservation, but are sufficiently so for the determination of their characters. Besides a small specimen of Chromis niloticus (Cuv.), there is an Hleotris and four fishes of the family Silwrozdez, none of which cor- respond with species described in the work of Cuvier and Valenciennes, or such other books as I have been able to consult. They may possibly be mentioned in recent monographs which I have not had an opportunity of seeing. 1. The Eleotris presents well the characters of that genus, the head being much depressed, the body slender, the eyes remote, the gape very large for the size of the body, and the lower jaw prolonged beyond the upper, so as to give the mouth an upward direction, which may probably be looked on as convenient to a fish inhabiting the muddy parts of the water, and preying upon animals swimming overhead. Also, it shows well the appendage behind the vent and the ununited ventral fins, which distinguish this genus from Gobius. It has no vomerine teeth ; its scales are small; its total length to the tip of the caudal fin is five inches. The caudal fin is one inch long and rounded. The number of the fin rays is as follows :—first dorsal eight, second dorsal ten, caudal thirty-two, anal nine, pectoral sixteen, ventral six. 2. Of the Stlwroed specimens one is a Synodontis, and corresponds exactly with a specimen in the British Museum. I believe that it is the Synodontis serratus, although the number of its fin rays agrees rather with that attributed to S. arabi in the work of Cuvier and Valenciennes. The anterior dorsal fin has eight rays, the first of which is, as in all the members of the genus, a long and strong slightly curved spine fixed at right angles to the body. This spine is toothed on its posterior edge, and towards the point anteriorly. The posterior or fatty dorsal fin, half an inch high and two inches long, VOL. II, 3A 360 Proceedings of the Royal Physical Society. is continued further back than the posterior margin of the anal fin. The caudal fin is bifurcated, the superior half longer than the inferior.. From the longest ray above to the longest below, inclusive, there are seventeen rays; and outside these there are eleven shorter rays in each half. There are thirteen rays in the anal, nine in the pectoral, and seven in the ventral fin. The first pectoral fin ray in Synodontis is a large spine toothed before and behind, the posterior teeth being longest, about equal in length to the dorsal spine. There is no locking arrangement in its joint, and therefore it can only be kept in the extended position by mus- cular effort. On the other hand we find the lock-joint of the pectoral spine in genera in which the dorsal spine is not fixed, as in this genus. The superior scute of the head passes back nearly as far as the third dorsal fin ray. The coracoid scute is triangular, and passes back as far as the superior scute. The long curved teeth which hang loosely in the lower lip, and which give character to the genus, are twenty-four in number. Behind them are fine velvety teeth, the patches of opposite sides distinct. In the upper jaw there is a double row of conical teeth, about eighteen on each side, and behind them (on each side) a patch of setose teeth of very irregular size. There is one superior pair of barbules very long and simple, and two inferior pairs, both of them branched, the outer pair half the length of the superior pair, and the inner pair half the length of the outer. The specimen is twelve inches long from mouth to tip of tail, and three inches from mouth to the first dorsal spine. A view of the swimming-bladder of Synodontis is given by Miller in his work on Myxinoid fishes. 3. Two of the specimens exhibited belong to the genus Clarias, which is characterised by the presence of arborescent branchial appendages attached to the second and fourth branchial arches, and by having only one dorsal fin. The first of them corresponds exactly to one which I have had the opportunity of examining in the British Museum, and which, therefore, we may expect to have properly described by Dr Gunther in his elaborate work, of which part is already published. The specimen is a foot long. The head is depressed and shielded, oblong in form, the eyes small and lateral; the body is oblong, compressed. The dorsal fin extends from within an inch behind the head back to the tail, but is not continuous with the caudal fin; it contains seventy-six rays, the first of which is not _ spinous. The caudal fin contains twenty-four rays, the anal sixty-three, the pectoral twelve, the ventral six. The first ray of the pectoral fin is a spine toothed before and behind, and having a lock-joint, that is to say, its joint is so constructed that when the spine is fully extended it cannot be pushed back towards the body by any direct pressure, but must first be rotated to a certain extent, and then it folds back easily. The anal fin is continued, like the dorsal, back to the caudal, without being con- tinuous with the latter. There is a papilla behind the anus. The teeth are velvety, in very broad patches. The teeth in the upper jaw are larger than those in the lower; the patch in the lower jaw is broader than that in the upper, and indented at the outer side. On the vomer there is also a broad patch of very minute teeth. The barbules are eight in number. The anterior superior pair are longest, the external inferior pair slightly longer than the posterior superior pair, while the internal inferior pair are thick, short, and trun- cated, a character peculiar to this species. 4, The other Clarias, which I exhibit, resembles two of the Indian ~ hp Mr T. D. Weir on the Food of the Common Squirrel. 361 Species, viz., Clarias Nieuhofi and Clarias jagur, in the dorsal and anal fins being continuous with the caudal. It has only one arborescent branchial appendage on each side, which is attached to the fourth bran- chial arch, and is very small. The specimen is eight inches long to the tip of the caudal fin, the latter being three-fourths of an inch long. The head is depressed, not shielded, three-fourths of an inch long, the body compressed. The barbules are eight, the branchiostegal rays nine. The anterior superior barbules are broadly membranous at the base. The teeth are velvety, the patch on the lower jaw is much larger than that on the upper, and there is a patch on the vomer. The dorsal fin begins an inch behind the head ; it has no spinous first ray. ‘The rays in it and the anal fin are very numerous. The pectoral fins are small, and have six rays, the anterior ray being a short spine, less than half the length of the succeeding rays, and not lock-jointed. The ventral fins are small and contain three rays. 5. The remaining specimen is a species of Heterobranchus. Hetero- branchus is a genus allied to Clarias, having the same sort of arborescent branchial appendages, but having two dorsal fins, the posterior of which is fatty. The specimen is five and a half inches long, three-fourths of an inch of this length belonging to the caudal fin. The appendages will be seen on the second and fourth branchial arches. The head is very much depressed, broad, shielded, the eyes lateral, the barbules eight. The branchiostegal rays are eight. The first dorsal fin has thirty-five rays, the first one not spinous, it ends behind the middle of the body. The fatty dorsal fin extends from the true dorsal to the tail, and contains traces of eighteen very fine rays. The caudal fin has twenty-two rays ; it is rounded, and is tipped with black, as are also to a less extent the other fins, and the dorsal aspect of the head is also black. The anal fin has forty-seven rays, and extends from anus to tail. The pectoral fin has ten rays, the anterior ray toothed and lock-jointed, shorter than the suc- ceeding rays. The ventral fin has six rays. The teeth are velvety, in elongated narrow patches, one of which is on the vomer. V. Note of the Common Squirrel (Sciurus vulgaris) Feeding on Buds and their Eggs. By Tuomas Duruam Wer of Boghead, Esq., Bath- gate. Communicated by Dr Jonn ALEX. SMITH. The far-famed Charles Waterton of Walton Hall, Hsq., near Wakefield, in his amusing and highly interesting Hssays on Natural History, has strongly maintained that the squirrel derives its supplies of food wholly from the vegetable king- dom, and.is not possessed of any carnivorous propensities. I shall however prove from a few facts, for “ Facts are chiels that winna ding, Wage And canna be disputed,” that this is not the case, but that some members of this family are not true vegetarians, and do occasionally indulge in carnal feasts. 362 Proceedings of the Royal Physical Society. Hear what Mr Waterton says in reply to a published account of a tame squirrel eating flesh in confinement :— “Had the squirrel been wild in the wild woods at the time that Mr Wigton saw it eat birds, I should not hesitate to pronounce that individual squirrel to be carnivorous, because I believe that Mr Wigton would only state what he conceived to be correct. I gather from Mr Wigton’s com- munication that his squirrel was in captivity when it partook of a carnal feast. This single fact at once precludes the possibility of the Squirrel family being raised to the rank of carnivorous animals. The incarceration only of a few days might have injured the prisoner seriously, either in his nervous system, or in his gastric powers, or in his olfactory sensibilities."—Now for my facts :— A few years ago, during the month of May, Mr James Hunter, a respectable merchant in Bathgate, upon whose veracity I can place perfect reliance, informed me that whilst walking through the plantations of Andrew Gillon, Hsq. of Wallhouse, he observed a squirrel sitting upon the branch of a tall larch. Being near to the farm-steading of Broom Park, and anxious to get it for a specimen, he brought out the son of the farmer, who immediately shot it. To their astonishment they found a small bird firmly clutched in its claws, with its skull laid open, and the brains taken out. James Bell, another observer, told me that when walking through a plantation on his father’s farm of Carriber, near Linlithgow, he observed a squirrel in the act of sucking egos which were deposited in a bird’s nest, and that when he approached it scampered off with one of them in its claws. Mr George Heathe informed me that, in July last, when resting at his meal hour in a plantation near Bowhill House, a seat of the Duke of Buccleuch, in the neighbourhood of Selkirk, his attention was attracted by the lively gambols of a squirrel among the trees. In the course of its movements it happened to come upon the nest of a thrush containing several newly-hatched birds. Seating itself beside the nest, it took a short but deliberate survey of its contents, and then lifted one of the birds, which it held between its fore Ormthological Notes. 363 paws, and proceeded to devour with apparently the greatest relish. Not contented with this, it was in the act of taking another from the nest, when the enjoyments of the feast were broken in upon by the hitherto unseen observer of the depredation. VI. Albino Variety of the Lepus timidus. Exhibited by Joun Avex, Smitu, M.D. This white variety of the common hare was shot near Lauder about the end of January. The animal was large, and well fed. The eyes were carefully examined, and were pink or red, showing the usual deficiency of the dark pig- ment of the eye, which occurs in albinos. The ears, which were longer than the head, had no black colour on their tips; and the upper part of the tail, instead of being black, as in the common and Alpine hares, was, like all the rest of the animal, pure white. VII. Ornithological Notes. By Joun AuexanpEerR Smitn, M.D. (Specimens exhibited.) (1.) Turdus Merula (Penn.) Blackbird.—A pied variety of this bird was exhibited, the head and upper parts of the body being variegated with numerous pure white feathers. It was shot on the 3d of February near Dundas Castle, Lin- lithgowshire. (2.) Loxia curvirostra (Penn.) Common Crossbill.—A male and female, in fine plumage, were exhibited, killed on the 13th January, near Aberdeen. (3.) Picus Major (Penn.) Pved or Great Spotted Wood- pecker.—Adult male specimen, showing the crimson red occiput, was found in May 1861 lying dead in the shrubbery of T. Durham Weir of Boghead, Esq., near Bathgate, Linlith- gowshire. The bird seems not to have been before observed in this county ; it is not included in the list of the birds of Linlithgowshire, by the Rev. John Duns, recently published in the Proceedings of the Royal Society. A young male, shot on the 4th of last December, at Kirkwall, Orkney, was also exhibited. It is one of our rare local residents, and is an accidental visitor or straggler in Orkney. An- other specimen was killed in Orkney in the month of August 364 Proceedings of the Royal Physical Society. last, and was sent to Mr J. Carfrae, Princes Street, to be preserved. (4.) Hybrid Grouse, between Blackcock and Red Grouse.— Two male, apparently hybrid grouse, in very fine plumage, were exhibited. ‘They show a resemblance to both parents, and their size is intermediate between them; being rather less than that of the male blackcock, and 18 inches in length from point of bill to middle of forked tail. The upper parts of head and body are black, mottled with reddish-brown and erey ; the breast is black, with slight reddish purple reflec- tions; the under parts black, mottled with red, and spotted with white. The birds have the blackish bill of the black- cock, and the scarlet free fringed margin of membrane over the eyes, as in the Red Grouse. Tail is slightly forked, and differs from Macgillivray’s specimen, in having eighteen feathers like the Blackcock, instead of sixteen as in the Red Grouse. The legs have the tarsi closely feathered all round, like the Red Grouse, there being no bare space on the back part, as exists in the Blackcock; and the feathers are as close and thick as in the former. The feet are feathered for about a third down the toes, whereas in the Blackcock the feathering stops at the commencement of the toes, and in the Red Grouse it extends down to the claws. The toes are mar- gined with pectiniform scales, as in the Black Grouse ; and the claws are long, arched, and slender, ike the Red Grouse, and do not resemble the shorter and stronger claws of the Blackcock. The birds agree closely with the description of a hybrid given by Macgillivray in his “ British Birds,” and with those formerly exhibited (Proc. vol. 11. p. 245). They were procured by Mr Aitken, farmer, Listonshiels, and had been killed on the 8th December, on the Pentland Hills, some twelve miles west of Kdinburgh. The birds were pre- pared by Mr Sanderson, George Street. (5.) Botaurus stellaris (Selby.) The Common Bittern.—A beautiful male Bittern, now become one of our rare birds, shot on the 24th January, near Balerno, in this county, was exhibited. Its large membranous stomach contained a couple of frogs, a large and a small one. The body of the i Ornithological Notes. 365 large frog was much altered by the digestive process, but its hind legs, which projected upwards into the gullet, were very little changed. The caput cecum was small, measur- ing only about one-eighth of an inch, and had no projecting cecal appendages. Another specimen, a female, was also examined ; it was shot in October last, between Ayton and Coldingham, Berwickshire. (6.) Podiceps cristatus (Penn.) Great Crested Grebe, (‘‘ pellet” in stomach).—The specimen exhibited was shot in the Firth of Forth, near Queensferry, on 27th January 1862. It measured 21 inches in length; wing from carpal joint to point of primaries, 7% inches. Bill nearly two inches in length, of a pale carmine tint, with a dusky stripe along its ridge, and tip of greyish white ; small white spot between eye and bill. In wing, the primaries are brown, one or two of the last being slightly tipped with white; secondaries pure white, with the exception of two or three of the last feathers, which are more or less tipped with brown, and the coverts of the primaries and secondaries are brown; the humeral feathers and their coverts are pure white, and this white colour runs forward along the lesser coverts at the anterior margin of wing, gradually diminish- ing in breadth towards the carpal joint. The scapulars are dark-brown or greyish-brown, like the rest of the back. The expanded wing, therefore, displays the primaries brown, and a broad band of brown obliquely crossing the white wing from the carpal joint to the points of the last secon- daries. The axillaries are white. Feet and legs greenish- brown on outside; inside, pale yellowish-green. The bird is a female; the muscular gizzard measured 24 inches in length, with a thick, rugose cuticular lining; it contained a nearly dry rounded mass; about the size of a small walnut, ~ which, when broken up by the finger, was seen to consist of various black and white feathers, apparently taken from the bird itself, and the remains of what appeared to be the spines and skins of shrimps or other crustaceans. Masses of this kind have been often noticed in the stomach of this bird, and have been variously described. The pyloric orifice of the stomach was seen to be very small, and it was at once 366 Proceedings of the Royal Physical Society. apparent the mass of feathers never could be passed by the bowels; whereas the cardiac opening of the stomach was large, with a large glandular proventriculus, forming a band 13 inch in breadth. It was manifest, therefore, this mass was simply a “pellet” of feathers, and the indigestible parts of its food, ready to be cast up by the mouth. From the lower bowel there were two ceca, one 13, the other 24 inches in length. Macgillivray, in his “‘ History of British Birds,” says, “ Its food consists of fishes of various kinds, aquatic insects, reptiles, and crustacea. Along with remains of these are usually found in the stomach numerous large curved feathers, which it probably picks up as they float on the water, and which are no doubt intended to facilitate digestion.” How, he does not tell us. In Professor Fleming’s “ British Animals” we are told that he found in the stomach of a young Podiceps cornutus ‘a concretion upwards of half an inch in diameter, con- sisting of its own belly feathers, closely matted together. Montagu, in his Supplement, states, that he observed the same occurrence in the red-necked and crested species. Are these to be considered as analogous to Bezoar’s ?” Yarrell, in his ‘‘ British Birds,” alludes to “ this habit of the grebes swallowing feathers alone,” and says it “‘ appears to be peculiar to the grebes only. From fish bones being found occasionally mixed up with the feathers, there is cause to suspect these birds bring up the more indigestible part of their last meal, as hawks, &c., are known to do.” From their anatomical structure, there cannot be a doubt of the fact of this bird bringing up pellets, and the presence of the feathers will rather facilitate the completeness of the operation; being possibly swallowed for the very purpose of assisting to clear out or brush away from the inside of the stomach the indigestible and spiny portions of the skins of crustacea, fish bones, &c., which, without some arrangement © of this kind, might cause considerable trouble and uneasi- ness to get quit of. (7.) Podiceps rubricollis (Penn.) ed-necked Grebe—A young male, showing a slight appearance of red on the Ormthological Notes. 367 feathers of lower part of neck, was shot on the River Tay, in the month of January, and is exhibited by my friend, P. A. Dassauville, Esq. A young specimen was obtained from the stomach of a cod, by our member, Dr John Anderson. The bird was in good preservation, and was presented by him to the Natural History Museum of the University ; the cod measured 33 feet in length, and was not in good condition ; it was caught in the month of November on the east of the Isle of May. The Red-necked Grebe is stated to be more decidedly marine in its habits than others of the grebes ; and this instance of its capture by the cod fish, may perhaps be considered an additional proof of the correctness of this opinion. (8.) Podiceps cornutus (Penn). The Horned or Sclavonian Grebe.—A male and female in their full summer plumage, in the possession of Mr Sanderson, George Street, were ex- hibited. They were shot on the 20th of June 1860, by Far- quhar Campbell, Esq., at the small loch of Killisport, on his property of Ormsary, Argyleshire. These birds are not known to breed in Scotland ; in this instance, however, from the season of the year, and from the locality to which they seemed attached, they were considered as probably rearing a brood of young. (9.) Podiceps auritus (Penn). The Hared Grebe.—The bird exhibited was found by Mr John Blackwood, George Street, in the early part of January, on the sea-beach within the grounds of Dalmeny Park, near Edinburgh, the seat of the Earl of Rosebery. It is easily distinguished from the other grebes by its small size, being still less than the species last noticed (this bird measured about 12 inches in length); and by the peculiarly recurved or bent up character of its bill, which is also shorter than the head. The upper mandible is broad at the base, and is depressed a little in the middle of its length; its outline rising slightly upwards towards the tip. The outline of the lower mandi- ble is nearly straight at the base, and rises rapidly upwards towards the point, giving it the appearance of being cut off obliquely at the point. The bill is black, tinged with blue, and horny white at the tip, the base of lower mandible VOL. II. 3B 368 Proceedings of the Royal Physical Society. being yellowish. This specimen is probably a young bird in winter plumage; it has the upper parts of head nearly black, feathers rather prolonged at sides of hind head ; neck and back brownish-black; chin, and across upper part of neck white, a greyish band crosses front of neck; and be- low it is silvery white, the flanks being dashed with brown. Wing: primaries, dusky, first and second nearly equal, rest gradually diminishing in length; secondaries, pure white ; the coverts brown; below, white; length from carpal jomt 5 inches. Legs and feet dark green, rather lighter on in- side. Macgillivray says he has very seldom met with this bird in Scotland; and Sir William Jardine states he has never personally found it. It is the rarest of the British Grebes. VII. A Large Specimen of the Wild Cat (Felis catus ferus), recently shot on the property of the Harl of Seaforth, in Inverness-shire, was exhibited by Edward Hargitt, Esq. VIII. Mr Rozert Brown exhibited to the Society a beautiful specimen of Astrophyton scutatum* from Davis Strat, with the following Note. Twelve months ago to-day I sailed to the Arctic Regions, for the purpose of studying some points in Natural History to which my attention had of late been directed. During the eight months I was away, I visited various parts of the Polar Regions, the seas round Jan Mayen, Spitzbergen, and the east coast of Greenland, the west coast of Greenland, and crossing the top of Baffin’s Sea to Lancaster Sound, that portion of the American coast bordering Davis Strait, &. &c. From a variety of causes—among others the late severe winter and spring (the latter of which we ourselves expe- rienced, the former we were told of by the Eskimo), and the comparatively still summer, blocking up the shores with ice, which was not dissipated before we were forced to seek a milder climate—my voyage was not so successful, from a scientific point of view, as, under other circum- — stances, it might have been. I however gained valuable experience, which I hope soon to make use of, and which * The specimen is now in the Natural History Museum, Edinburgh. a> eee Mr Robert Brown on Astrophyton scutatum. 369 has well repaid me for any little hardships and dangers I may have undergone in gaining it; and I take this op- portunity of thanking Captain George Deuchars of the s.s. ‘“ Narwhal,” and his officers, for the ready and intelligent assistance they tendered me whenever it lay in their power. The few observations which I have been enabled to make, I shall have the honour of laying before the Society at a future time. In the meantime I exhibit this specimen of Aséro- phyton scutatum, Link, Flem., e¢ Forbes (Brit. Hchin., p. 67), which I obtained, m September 1861, on the west side of Davis Strait, about a mile off Cape Kater, clinging to a whale line, from 150 to 200 fathoms—rocky and clayey bottom. It was laden with ova of a deep-red colour. I found nothing in its stomach but Diatomacez, and a spe- cimen of an HEntomostracan, closely allied to, if not iden- tical with, Cetochilus arcticus of Baird, in the ‘‘ Appendix to Sutherland’s Voyage,” vol. ii. p. cciii., the presence of which, however, may, with a specimen of a species of Yoldia em- braced in its arms, be only accidental. (It may be men- tioned as a curious fact, that this Cetochilus forms a great portion of the food of the “commercial” whale (Galena mysticetus), a much disputed point, and of some of the minuter species of Acalephe.) _ Astrophyton scutatum has been occasionally got among the Northern Isles of Scotland (where it bears the rather classical name of Argus) and Norway.* It has been found, however, very rarely, and at distant periods, in the Arctic seas. Otho Fabricius, in his remark- ably accurate Fauna Groenlandica (Hafniz et Lipsiz, 1780), speaks of it (p. 372) as follows :—“ Asterias caput meduse. Hanc in museo plurimum reverendi Dn. Egede de colonia Jacobshavn (ni fallor) missam, vidi: unde concludo, in sinu Disco dari ; non autem vivam ipse offendi.” Whether Fabricius refers here to Hans Egede, the pioneer missionary of Greenland (1721), or to his son, Paul Egede, - also a missionary in Greenland, and both of whom published * The secretary of the Zoological Society lately exhibited a specimen at one of their meetings from the southern seas. (‘ Habitat in omni oceano, imprimis Pelagico.”’—Linn. Syst., i. 663, Hd. 10.) 370 Proceedings of the Royal Physical Society. works on the country, does not appear, though in none of them can I find any account of this animal. The Chevalier Charles Louis Giesecke, who passed several years in Green- land, engaged in the study of its Natural History, in his article ‘‘ Greenland,” in the Edinburgh Encyclopedia, vol. x. p- 502, notes as follows:—‘‘In Disco-Fiord is found the Asterius caput meduse.” He is apparently here, as in many other places, only copying the doubtful record of its occur- rence by Fabricius. There is no notice of itin Hans Egede’s work on Greenland (Die Gemle Greenland nye Perlustration, 1729); or in the fuller and better work by David Crantz, one of the Mora- vian Unitas Fratrum (Historie von Gronland, 1765; English trans. 2 vols. 1820), both of whom studied very closely the Arctic Fauna with the best lights of the age. My attention has however been called to a note by Mr Gwyn Jeffreys, in the “ Annals of Natural History,” vol. vii. p. 253, where he refers to Sir John Ross having got a single specimen far north, which was described by Dr Leach, under the synonym of Gorgonocephalus arcticus, and is now in the British Mu- seum. It was obtained from 1600 fathoms soundings in soft mud, and measured, when expanded, two feet.* My specimen is much larger and finer than any I have ever seen got in the British seas. It thus appears that, with the exception of the doubtful indication of its occurrence in Disco Fjord, by Fabricius (cerciter 1760), and that by Sir John Ross in 1819, this specimen found last year is only the third got in the wide Arctic sea, north and west of Greenland. None of the Government exploring expeditions have brought it home, though it is quite possible that some of the many naturalists who have studied the Arctic fauna since the days of Fabricius—Eschricht, Staeger, Kroyer, Moller, Hoeg, Olrik, Rink, Reinhardt, Otto Torrell, &.—may have met in with it, though I am not aware that it is on record. Disco-Fyjord, a * Martens, the surgeon of a Hamburg whaler, in 1671, appears to have met with it in his “‘ Voyage to Spitzbergen, ¢. P. f. #.,” though Phipps (Lord Mulgrave), in his Fauna of that sea, does not mention it: ‘“‘ Voyage to the North Pole ;” apud Scoresby, ‘‘ Arctic Regions ;” though it was afterwards got in Davy’s Sound on the east coast of Greenland.—(Scoresby’s Voyage to Greenland, fc. ; Zoological Appendix.) Mr Robert Brown on Astrophyton scutatum. 371 narrow inlet of the Island of Disco (lat. 68° 58’ 42” N., long. 53° 13’ W.), appears to be a very likely place for it. It is almost opposite Cape Kater where I got it, and where it appears to be pretty abundant; for broken pieces occasion- ally came up on the whale-lines afterwards. A curious idea seems to have prevailed in Bishop Erick Pontopiddan’s day regarding this animal. After mention- ing in his excellent ‘‘ Natural History of Norway,” part 1. pp- 179-80 (Lond. 1755, English trans.), that it is rarely got on the Norwegian coast, and is called Sée-Navle by the Nor- wegians, and Sde-Soel or Sea Sun by the Dutch sailors, who frequently find it in the West Indies, according to Geo. Marcgrave’s account, in his “ Historia Naturalis Brazilie,” lib. iv. cap. xxi, he states, in all good faith, the following extraordinary notion, though, with a lack of credulity he has hardly been given credit for, repudiating it :—“ This strange and wonderful fish or korstrold is said to be only the young, or perhaps only the germ, of the roe of that great and frightful monster, which is here called Kraake [Kraken Anglice]. But as far as I could get information from several fishermen, who all agree in their accounts, this cannot possibly be true.” Though a rare animal, this ‘ Korstrold,” from its bizarre form, seems to have attracted the attention of all the “ enge- nuous” naturalists of an early date, as well as more modern, and to have received (after a fashion not peculiar to our time) a variety of names,—viz., Sternfisch, J. C. Adelung, Geschicte, &c., p. 381, tab. xvii. fig. (1768); “‘ Stella ma- rina 1. Ionstoni, Lnsect., tab. xxiv. fig. 11” (fide Fab.) ; Stella arborescens (Rondoletius and Gesner) ; Asterias caput medusee (Linnzeus, Muller, &c.) ; Asterias arborescens (Pen- nant); Huryale verucossum (Lamarck); Huryale scutatum (Blainville), &c. Most of the early authors give distinguishable figures of it. That of Pontopiddan is the best. Among modern, that of Professor E. Forbes is the only good portrait of it, but, from its want of colouring, his figure does not do full justice to the varied hues of the starfish. The coloured figures in Griffith’s beautiful edition of Cuvier’s Regne Animal, as also in the “Crochard Edition” of same work, are mere pictures. 372 Proceedings of the Royal Physical Society. Wednesday, 26th March 1862.— Atexanprr Bryson, Esq., President, in the Chair. The following Donations to the Library were laid on the table :— 1. Canadian Journal, New Series, No. 36, November 1861.— From Canadian Institute. 2. First Report of a Geological Reconnois- sance of the Northern Counties of Arkansas, made during the years 1857 and 1858.—From Geological Surveyor of Arkansas. 3. Fourth Report of Progress of the Geological Survey of Missouri.—By G. C. Swallow. 1859. The following Communications were read :— I. Notice of Indian Insects exhibited at last meeting by Mr Elliot of Wolfelee. By R. F. Loean, Esq. Although not present at the last meeting of the Society, when Mr Elliot’s beautiful drawings of Indian animals by native artists were exhibited, I have since had the pleasure of inspecting them, through the kindness of Dr Coldstream ; and with reference more especially to the entomological portion of the collection, I wish to bear testimony not only to the intrinsic beauty and fidelity of the drawings, but also to their high scientific value, as comprising the transformations of many insects whose history has been hitherto unknown to science. Besides figures of the larve and pupe of many of the Papilionide, Pieride, Nymphalide, &c., some of which have been already figured and described, the collec- tion includes some most interesting details of the trans- formations of the Heterocera. Among the Woctue, those of the genera Hypocala, Hyblea, Ophideres, Achaea, Lagop- tera, and Serrodes, are especially worthy of mention. The larvee of Hypocala have no apparent affinity with those of the Catocalide, immediately before which they stand in Guenee’s arrangement. Those of Opilideres, of which Guenee re- marks, ‘‘Je desirerais vivement connartre les chemilles de ce genre singulier,” are quite as remarkable as the perfect in- sects. They are elongate and cylindrical, lke those of the - Ophiuside, and the anterior pair of ventral claspers is imper- fect ; but instead of being attenuated posteriorly and ante- riorly with a pair of small tubercles on the eleventh seg- ment, the latter forms a large conical protuberance, as in Dr James M‘Bain on the Development of Fish Spawn. 373 the larva of Notodonta or Amphipyra, and the rest of the body is uniformly cylindrical, the fifth and the sixth seg- ments bearing a pair of large eye-like spots, somewhat like those of the larva of Cherocampa. The position, when at rest, is most remarkable, the body resting on the three pairs of perfect ventral claspers alone, with the anterior segments elevated and incurved, after the manner of the Sphinges, and some of the Geometre, while the posterior segments are elevated in the air after the fashion of the genus Notodonta. The drawings are on their way to London, I believe, to be placed in the hands of Mr Moore; so that their details may be expected to be embodied in the forthcoming volumes of the Descriptive Catalogue of the Insects in the Museum of the Hast India Company. II. Notice of the Development of Fish Spawn from the Firth of Forth, By James M‘Barn, M.D., R.N. On Tuesday the 11th instant, when examining fish spawn under the microscope, I observed a free and complete rota- tion of the embryo in the ovum, which rotatory movement was repeated at short intervals. The spawn had been dredged up four days previously in 144 fathoms water, half a mile to the westward of the Isle of May; and in all the ova which had a clear transparent appearance the same rota- tory motion was observed. ‘The following day, on making similar observations, the embryos were still found alive, and rotating freely in the ovum; and fresh spawn dredged up at the same place exhibited similar activity of embryonic movement. ‘The spawn in which this vital action was seen is said by the fishermen to be the herring spawn ; and to as- certain, if possible, to what species it really belongs, I pre- served small portions of the spawn in sea-water. On the 18th instant, I was pleased to see a numerous brood spon- taneously extruded from the ova, swimming freely about in the vessels in which they had been placed. The ova were about 5th of an inch in diameter, and the young fry, when first extruded, measured two to three lines in length. A few of the young fish are now, eight days 374 Proceedings of the Royal Physical Society. after extrusion, fully half an inch long, and have almost parted with the nutritive portion of the vitellus. There are many, however, that have made less progress, and have still a large yelk-mass attached to the upper part of the thorax immediately behind the pectoral fins. On the third day after exclusion from the ova, the mouth and jaws were quite distinct, the pectoral fins had appeared, and the outlines of the branchial arches were plainly visible. The cardiac con- tractile sac, which was seen in the embryo, was now found to contract and dilate sychronously with a fluid movement along the ventral aspect, which could be traced backwards four-fifths the length of the fish, where a notch in the deli- cate fin membrane appeared to indicate the separation be- tween the abdominal and caudal portions of the animal. The progress of development has been watched daily, and will be more fully detailed when the observations are com- pleted. As it is uncertain whether the young fry will exist long enough to pass into their adult condition, I have thought it proper to give this brief notice to the Royal Physical So- ciety, and at the same time to exhibit living specimens, along with pencil drawings illustrating the various phases of development from the first rotation of the embryo seen in the ovum until the present time. Dr T. 8. Wright mentioned that he had noticed a similar development, but was doubtful if the ova were herring spawn. III. (1.) On the Difference between the young Herring, Clupea harengus, and the Sprat, Clupea sprattus. (2.) On the Food of Fishes. By J. M. Mircaett, Esq. Mr Mitchell described the various differences between these distinct fishes; and proceeded to detail the results of the examination of the contents of the stomach in various genera and species of fishes. IV. On Phryxus Paguri. By Joun Anperson, M.D. In the month of May last year, when dredging in the Firth of Forth, I had the good fortune to meet with this in- Dr John Anderson on Phryxus paguri. 375 teresting, and, according to its discoverer, Rathke, ‘‘ recht selten parasit.” As itis a new and interesting addition to the fauna of the Scottish seas, I shall shortly describe its external characters. This remarkable Bopyridian is fixed with its dorsal surface to P. Bernh., and from its anomalous position, one is apt to confound the ventral with the dorsal surface of the body. By means of its seven prehensile feet it adheres with considerable tenacity to the soft abdomen of the crab. In Phryxus, as in the other Bopyride, the pro- portions of the female greatly exceed those of the male in- dividual, which is always found associated with, and leading a parasitic life upon, the former. Differing in size, they also differ in external form. The female always selects the left side of the crab as its habitus, which, I suppose, is owing to this side of the crab being always in relation to the widest part of its appro- priated dwelling. It is about half an inch in length and a quarter of an inch in breadth ; all my specimens were of a pure white colour. The body of the animal, with the excep- tion of the caudal appendage, is nearly of the same breadth throughout its whole extent ; its anterior margin is rounded. As already stated, the dorsal surface is applied to the abdomen of the crab, and is flat, but slightly concave in the centre, and is divided into seven segments, each segment bearing a pair of prehensile feet. The ventral or upper- most surface is in relation to the shell in which the crab lives, and, like the dorsal, is distinctly segmented, but is hidden from view by six leaf-like membranes, which form the breeding cavity for the ova. The head of the animal cannot be detected on the ventral surface until the bladder-like pouches which overlap it are removed. This portion of the head consists of a large under lip, behind and over which are placed two valve-like bodies ; these bodies, in reality, are the altered pouches of the head segment. When viewed from the dorsal aspect, the head has a quadrangular appearance, bearing upon the centre of its anterior margin a small rounded process. The first pair of antenne are small, and consist each of three joints, the terminal joint bearing a few bristles. The second pair are VOL. II. 3c 376 Proceedings of the Royal Physical Society. much larger than the first ; they consist each of four joints, the two terminal joints being provided with a few bristles. Eyes are wanting in the female. The segments of the dorsal surface of the body are sym- metrical, with the exception of the sixth, the unsymmetri- cal character of which is due to the animal being slightly curved, the convexity of the curve being towards the right side, and involving this segment. The segments gradually increase in size from the third to the sixth; the latter is very much expanded on the right side of the mesial line, corre- sponding to the convexity of the curve of the body. The seventh segment is symmetrical, but very much smaller than the preceding one. All these segments bear feet, which are very much distorted. From the different relative pro- portions of the segments, the feet are placed at various dis- tances from each other. The first pair closely surround the head, and have the second pair intimately applied to their external margins. The third pair are placed very near the second, but slightly posterior to them ; and the fourth pair are removed at some distance from the finite and also from the fifth pair, which lie behind them. A considerable in- terval exists between the fifth and sixth pair of feet, which is especially marked upon the right side of the animal. The sixth and seventh pair le contiguous to one another. Projecting beyond the posterior margin of the body (seventh segment) are the five branchial segments, all of which, with the exception of the terminal one, carry a pair of oval pedunculated branchie. The segments are rounded, and diminish in size as they approach the extremity. The terminal one ends in an oval-shaped process, which pre performs the same function as the branchie. The six ventral membranes of the breeding cavity in- crease in size as they approach the posterior extremity. The first or head pair differ in their form from the other five, from which they are also distinguished by their edges not being overlapped. They appear to be supported upon very short jointed stalks, and they consist of two portions, an anterior and pos- terior. The anterior portion is oblong in form, and bears Dr John Anderson on Phryxus paguri. 37 upon its ventral surface four rounded tubercles, and has a curious crescent-shaped pedunculated appendage attached to the posterior extremity of its external margin; the pos- terior portion is about half the size of the anterior, and is convex externally, and slightly concave on its internal margin. | The connections of the remaining five pouch-like mem- branes are as follows :— The 2d belongs to the 1st Thoracic segment. mW Ou is Lao : do. RAs ay, » odand 4th do. a NE 5 Sth and 4th do. Pe Ob Ot. , oth, 6th, and 7th do. The second membrane covers the valve-like leaf of the head and is overlapped by the third, which is partially covered by the fourth ; this, again, overlaps the antericr extremity of the fifth, the remainder of which, and the posterior half of the fourth, are hidden from view by the largely developed pouch of the fifth, sixth, and seventh segments. By this arrangement the plates visible from the belly side are the third, fourth, and sixth. The sixth plate is minutely serrated along its margins. In one of the specimens I examined, the fourth, fifth, and sixth membranes were filled with ova. The pale-yellow coloured male is a very little more than one line in length, and consists in all of nine segments, which diminish in size as they approach the caudal extre- mity. The anterior segment (head) is symmetrical, and bears two eyes. Projecting beyond its lateral margins are the external antenne, which consist of four joints. Placed internal to these, and completely concealed by the head, are the internal ones, which only consist of three joints. Each of the remaining segments, with the exception of the terminal one, carries a pair of feet which are provided with sharp claws. The segments are rounded at their ex- ternal margins. 378 Proceedings of the Royal Physical Society. V. Observations on British Zoophytes and Protozoa. 1. Clava nodosa. 2. Acharadria larynx. 3. Zooteirea religata. 4. Freya (Lagotia) obstetrica, Freya stylifer. 5. Chetospira maritima, 6. Oxytricha longicaudata. By T. Srrermintn Wricut, M.D. (Plate XVIL.) 1. Clava nodosa (n. sp., T. 8. W.) ‘‘Polypary creeping. Scleroderm membranous, ‘ Polyps single, small, aurora-coloured, each springing from a small knot of convoluted tubes.’ This zoophyte was found on the fronds of Delesserva sanguinea at Queensferry and Largo.” The very delicate threads of the polypary creep over the fronds of the seaweed, and at intervals twine themselves into a convoluted knot of membranous tubes, from which a single polyp arises. The species occurs only at low tide mark; while C. repens, for which it may be mistaken, is found in shallow rock pools. 2. Acharadria larynx. (Pl. XVII. figs. 7, 8.) ‘ Polypary branched, spirally twisted. Polyps pale orange, with two rows of tentacles. The lower row from 4 to 12, the upper row from 2 to 8 capitate.” On stones carrying Caryophyllia Smithi, received from Ilfracombe. This little Tubularian was about a quarter of an inch high, with three polyps, and resembled in habit Tubularia larynx. It bears the same relation to Vorticlava that Corymorpha does to Tubularza larynx. 3. Zooteirea religata. I described this animal to the Society about dis years ago. It is a stalked Actinophrys. The body, asin other animals of this class, consists of two elemental tissues, to which I have given the term ectosarc and endosare, —terms which have been adopted by Dr Carpenter. The ectosarc or external tissue is prolonged into a thick brush of the most delicate contractile palpocils or tentacles, like threads of spun glass (Pl. XVIII.), by which the animal is constantly seizing small organic particles, and convey- ing them to the endosare or inner tissue, which is the nutritive element. I stated that the stalk was formed of a prolongation of the ectoderm, similar to the tentacles; but, having again discovered large colonies of these animals last summer, and again this winter, I have been enabled to study the structure of the stalk more closely, and find that : Je J AAD Teh OU Vol. IZ. Royal Physical Soy, Edinburgh/ pcre rarer Lesa . T Strethill Wright, aelé H.M® Farlane, Litht Eain® {-6. Vorticlava Proteus. 7.3 Acharadria larynx. Je Ilya AP 18, NOONE hoyal Physical Society, Ldinburgl’ \ \ \\\ \\ \\\\ AVA \\\\ \ \ : \ : ANN th \ \ \\ \ : \ it \\ \ \\\ \ Ay \ WHEL LE \ yy \\ \ \\ awe \ \A\\ \ \ | \\\ \\\ \\\ vail M4 \ \ \ \\\ H \ | WA © \ WA \\ \ \\\ i Se\ WA T. Strethill Wright, del* W.H.M: Farlane, Lith? E dint Zooteirea CITB eeiel Observations on British Zoophytes. 379 it is an elastic tube, which appears to consist of denser tissue than either of the elements of the body. The axis of the tube is occupied along its whole length by a powerful mus- cular band, which is well seen in the figure (Pl. XIX. fig. 1d), in which the tube is distended with water, as sometimes occurs. The animals are very sluggish, remaining for days motionless, with all their rays extended; but the moment they are touched they vanish, drawn close down by their powerful muscular apparatus into the interstices of the shells in which they are generally found. Zooteirea multiplies by gemma- tion. The bud, which is given off close to the stalk, sepa- rates as a minute Actinophrys, which instantly fixes itself and develops its stalk. The lower part of the stalk is in- cluded in a mass of gelatinous tissue into which the animal can entirely retract itself. The long tentacles of Zooteirea religata can only be properly brought into “ black ground illumination,” when they appear like the rays of a silvery star, slightly curving under the influence of currents in the waters. : 4, Freya (Lagotia) obstetrica, Freya stylifer (n. sp, T. S. W.) It is now some years since I described several species of the new genus Lagotia to the Society. It appears, how- ever, that Claparede and Lachmann had already consti- tuted the genus Freya for animals evidently belonging to my genus Lagotia, in a memoir which they communicated to the French Academy, which memoir was printed after my communication to this Society. The species of Freya dis- covered by them differed from any of my species, and I have now to describe two other species of this very remarkable genus. LPreya obstetrica (Pl. XIX. fig. 4.)—* Lobes of rota- tory organ very broad, not folded; the tips bluntly rounded and incurved, so as to resemble very closely the blades of the obstetric forceps. Body fusiform, scarcely longer than the rotatory lobes. Nucleus large, colourless, surrounded by dense green pigment. Body and rotatory lobes covered with striz, bearing fringes of cilia. Cell flask-shaped, with- out a trumpet-shaped mouth. Colour of animal and cell pale bluish green.” Freya stylifer (figs. 5, 6.)—‘* Rotatory lobes short, narrow, and widely expanded, one of the lobes bearing at its tip a fleshly prolongation or style as long as 380 Proceedings of the Royal Physical Society. the lobe; cell tubular, without trumpet-shaped mouth; cell and animal colourless.” Freya stylifer is the smallest spe- cies I have yet seen of the genus to which it belongs; when contracted within its tube, it projects the curious style, which is doubtless a sense organ, beyond the opening, only entirely retracting it when rudely disturbed. During the last summer I had an opportunity of watching another species of Freya (2. producta) building up its re- markably constructed cell. The cell of this species, which is often immensely prolonged, is formed of a spiral ribbon of chitine, cemented by a thick internal layer of soft green sarcode, secreted by the body of the animal, so that the whole forms a hollow tubular spring, like the spiral wire tubes formerly employed for conveying gas to moveable burners. These tubes will therefore bend aside like a wil- low twig on any rude contact from the animals which are constantly dashing about, and will instantly regain their proper position. The young Freya producta, which is a free swimming larva, fixes itself, and secretes the lower part or body of the cell from the outer surface of its body; it then begins to form the elongated neck by depositing the chitine and sarcode on the upper edge of the constantly lengthening ribbon, carefully moulding the plastic materials with its two short rotatory lobes, which it uses like a pair of hands (Pl. XIX. fig. 2), just as Sabella and Serpula mould their tubes with their hand-like secreting leaflets. Having built its tube to the requisite length, it finishes it off with a hand- some trumpet-shaped mouth, and then retires to develop its long rotatory lobes. Occasionally the animal outgrows its dwelling-place,; and finds it necessary to lengthen its tube. For this purpose a large quantity of dark green matter is collected in the body of the animal, a little below the rota- tory organ (fig. 3 6), and from this part chitine and sarcode are secreted, which are instantly moulded into shape by the rotatory lobes, and a new spiral tube rises up from within the trumpet-shaped mouth of the old one (fig. 3 a). 5. Chetospira maritima (n. sp., T.S. W.) Two species of this remarkable animal have been noted by Lachmann—C. Mullert and C. Mucicola. Cheetospira is de- fined as a Stentor, in which the ciliary spiral and the paren- a XIX PLATS Edinburgh ah Seay" ss as ae Ltoyal Physical Society, aay reared Ni His trethill Wright, dealt. . a VoL. ” x3 oo a 4 + aot Se —— ‘es jo ae Sis! ey to =i 3s cee est re oO 2 Pike 63 00 =~ HH Bel oo a WS aN ft Cw) od SSeS ri © on Ho, x . a cO Babe: a 9 = Oo > $3 3 Observations on British Zoophytes. 381 chyma of the body supporting it are drawn out into a long thin process. When the animal issues from its tube, it pro- trudes its ciliary organ as a fleshy column, fringed on one side by a row of very long motionless cilia, but in an in- stant the column is twisted into a spiral, and the cilia are set in violent motion, urging currents of water towards the mouth. The marine species approaches in character, as to its rotatory organ, to C. Mullert, while it inhabits a mucous tube like that of C. Mucicola. 6. Oxytricha longicaudata, (Pl. XIX. figs. 7, 8.) This remarkable animal, resembling very much Oxytricha retractilis, described by Claparede and Lachmann, was found in great numbers with Chetospira maritima. The tailin this species is fully twice as long as that of Oxytricha retractilis, and is dragged after the swimming animal like a trailing rope, when suddenly the extremity of the tail is fixed by the long cilia at its extremity, and the Oxytricha, by violent contractions of its tail, jerks itself backwards and forwards in the most violent manner. The structure of tail, under an excellent power of eighty diameters, presents a peculiar striated and plaited appearance, like that of voluntary mus- cular fibre, but I could not make anything of it under higher powers. Description of Plate XVII. Figs. 7, 8.—Acharadria larynx. Description of Plate XVIII. Zooteirea religata, seen by black-ground illumination, and focussed for the centre of the ‘“endosare ;” a, with palpocils extended and curved by an upward current of water; 6, emerging from its cell; ¢, retracted within its cell. Description of Plate XIX. Fig. 1.—Zooteirea religata, with palpocils partially extended, and tubular con- tractile pedicle distended by water ; a, ectosare ; 6, endosarc ; c, tube; d, muscular band ; e, areolar fibres; f, gelatinous cell. Fig. 2—Young Freya producta building its tube. Fig. 8.— Freya producta with lengthened tube ; a, old mouth of tube ; 0, thick- ened part of body from which the tube is secreted. Vie. 4 —Freya obstetrica ; a, nucleus. Figs. 5, 6.—Freya stylifer, extended, and in its cell. Fig. 7.—Oxyiricha longicaudata, with tail extended. Fig. 8.— i a with tail contracted. 382 Proceedings of the Royal Physical Society. VI. On peculiar Hooked Spines on Ophiocoma bellis, with Observations on the Spines of other Ophiocome. (Plate XX.) By Caas. Wm. Pracu, Esq., Wick. (Specimens and drawings were exhibited.) On the 26th January 1859 a paper of mine was read, giv- ing an account of the discovery of hooked spines on Ophio- coma rosula, of which I had seen no notice in any work on British star-fishes. In April of the same year, when in London, I called at the Museum of Geology, Jermyn Street, and on mentioning this to Professor Huxley, he at once re- ferred me to a work in which similar spines were figured from star-fishes found in the Mediterranean—viz. Miller and Troschel’s ‘System der Asteriden, 1842.” Two species are figured and described as having jaw-like hooked spines— one at TableIX., fig. 4,—Ophionyx armata,—another at Table X., figs. 1 and 6—Asirophyton verrucosum. I only mention this work, so that any one feeling an interest in the subject may know where to refer. On the 14th June 1861, having obtained a large mass of star-fishes from the stomach of a cod, I found that about a hundred were Ophiocoma bellis. After carefully washing them, I placed portions under the microscope, and found that the under sides of the rays were furnished with hooked spines, like those I had before found on Ophiocoma rosula. They are not quite so distinct, nor so constant in form, and do not extend so far on the rays towards the disk ; for about the middle, they become more and more obscure, and before reaching it are straight, short spines. As well as the hooked-jaw like ones, the straight spines above these have hooked tips. Ophiocoma bellis is very abundant here, and is a favourite with cod-fish, as proved by the immense quantities found in their stomachs. Last night, in searching amongst my stores, I found enclosed in glass a specimen of Ophiocoma granulata, thus placed more than nine years ago; and, although pretty perfect, it was not in such a good state of preservation as I could have wished. Being the only one available, I was glad to have it. Although no hooked jaw-like spines are to be found on the under side of it, a provision has been made for its wants, by furmshing large hooks to the lower straight spines. These Te ShiveleN1By i SO® heoyal Fhysucatl Soctety, tide oPeach W. & A.K Johnston, Edinburgh On the Geology of Moffat, Dumfriesshire. 383 are most hooked towards the ends of the rays. There is however, a peculiar feature to be noticed in this species: although it has not the jaw-like spine, it is furnished with “two little obsolete or undeveloped spines.” Ophiocoma rosula and Ophiocoma bellis have one only of these “‘ obsolete spines”—valves I would rather call them—for an opening may be seen when these are raised, out of which the pin- nated cirrhi are protruded. I regret exceedingly that I can- not find the drawings of Ophiocoma rosula where these cirrhi are shown, and which I sketched from a living specimen. I find in a specimen of Ophiocoma Ballit that the lowest spines on the under side of the rays are crowned with small hooks ; and I have every reason to believe that most of the Ophiocoma are more or less provided with hooks, either on straight or jaw-like spines. _ DESCRIPTION OF PLATE XX. Fig. 1.—Part of a ray of Ophiocoma bellis, showing spines, valves, &c. Figs. 2, 3, 4, 5, 6, 7, 8.—Spines from various parts of the ray. Fig. 9.—Part of a ray of Ophiocoma granulata, showing spines, &c. Fig. 10.—One of the uppermost spines. Fig. 11.—Hooked spine from the under side of the tip of a ray. VII. The Geology of Moffat, Dumfriesshire. By W1iiu1am Carrutuers, Esq., F.L.S. Lathology. I purpose in this paper describing the geological features of the district around Moffat, taking the village as my centre, and including all that lies within a radius of four or five miles. The district is situated in the centre of the immense Silurian tract of the south of Scotland; its predominant rocks conse- quently belong to the Silurian period. A red sandstone lying unconformable to them is the only other stratified rock. The superficial deposits are not numerous; they consist of boulder clay, gravel and sand, peat and shingle. 631 Alumina, . : : 22,00 0 22-08 Manganese, . 5 : : traces ... traces Lime, : : Die ii ec. 2 OF Magnesia, . ; ; F Gel Giraz: 6:76 Water, : 5 ams Xs 20:225- > LO68 99:36 0.4. 99560 si0, RO R,O, HO Oxygen ratio, fo ele 2 3 IX. Notice of a Fetal Narwhal (Monodon monoceros, Linn.) By Rozert Brown, Esq. Mr Brown exhibited a small foetal specimen of a Nar- whal (fonodon monoceros, Linn.); and stated that another foetus was also found in the uterus of the same animal, which was captured in Davis’ Strait, June 23d, 1861. In the “ Linnean Transactions” (vol. xii. pp. 620, 621, “ Extracts from Minute Book”), in a letter from Mr W. R. Whatton of Manchester, it is noted, that in the summer of 1821, while a Hull whale ship was beset in the ice in the VOL, I. 3M 448 Proceedings of the Royal Physical Socvety. North Seas, the crew took a female Narwhal having a tooth in the upper jaw, perfect, and in every respect like that of the male, though not so long. The sex of the animal was satisfactorily ascertained in cutting up, when two fatuses were taken out of it. Mr Brown was acquainted with similar instances of the “horn” being protruded in the female Nar- whal; and though it is said to have been seen with two young following it, yet the instances mentioned were the only ones with which he was acquainted, in which the subject had been brought to an experimentum crucis. In all likeli- hood, the Cetacea in this respect follow the same laws as the other Mammalia, though our opportunities for observing the former were much more limited; and hence the value of every fact, however apparently triflmg, being put on record. Mr W. 8. Youne proposed a vote of thanks to the Presi- dents and other office-bearers, which was unanimously agreed to, and the Society adjourned until the commence- ment of the next Session. rN oD EX, Acharadria larynx, 378. Ajquoria vitrina, reproduction of, 316. Agelaius pheeniceus, Vieill., 47. zanthocephalus, Bonap., 47. Alauda alpestris, Linn., 111. Alcedo ispida, 245. Alcyonide, petrifaction of, 208. Alder (Joshua), on British Zoophytes. Hydractinia areolata, n. sp.; Atrac- tylis arenosa, n. sp., 314. Anahyster calabaricus, Murray, 157. Anchovy on coast of Caithness, 257. Anderson (Dr John), on Ph&ryxus paguri, 374. on Sacculina, 306, on New Holothuria, 331. “ Anowantibo,” Perodicticus Calabar- ensis, J. A. Smith, of Old Calabar, Notice of, 172. Anas boschas, Linn., 54, 348, 420. clypeata, Linn., 110, 189. strepera, Linn., 110, 150. Anser canadensis, 52, 181. hyperboreus, Gmel., 50. Anthus Ludovicianus, Gmel., 47. Apternus tridactylus, Sw., 48. Archibuteo sancti Johannis, Gmel., 45. Arctomys empetra, Schreb., 21. Argentine, 256. Astrophyton scutatum, 368. Atractylis arenosa, 'T. 8. Wright, 815, 349. coccinea, T. S. Wright, 251. miniata, 'T. 8S. Wright, 351. palliata, T. 8. Wright, 250. ramosa, 'T. S. Wright, 35. repens, 250. Asio brachyotus, 46. Balfour (Prof.), Opening Address (His- tory of Wernerian Society, &c.), 1. — on the Birds of Heligoland, communicated by, 82. Banks (James), on Lantern-fly of Honduras, 102. Beaver, habits of, 329. Beaver, American, 21. Beetles, eyeless, from Carniola Ae Hungary, 88. Bell (Rev. T. B.) Notes from the neighbourhood of Stranraer, 148. Bernicla canadensis, Linn., 50. leucolema, Murray, 51. Lutchinsii ? 58. Bimeria vestita, 61. Birds, British, 44, 58, 69, 139, 244, 259, 292, 347, 3638, 420. of Caithness, 834. of Heligoland, 82. of Hudson’s Bay Territories, 45, 57. Bison priscus, 77. Bloch’s Top-knot, taken near North Berwick, 189. Bos primigenius, 72, 77, 111. longifrons, 208. Botaurus lentiginosus, Montag., 50. stellaris, Selby, 364. Bovinee, fossil, 71. Brown (Robert), on Astrophyton scu- tatum, 368. on a foetal narwhal, 447. on Phocide of Greenland Seas, communicated by, 391. Bryson (Alex.), on danger of hasty generalization in geology, 85. with reference to the so-called raised sea-beach at Leith, 480. on tenacity of life in Buceznum coronatum, 89. on structure of pearl, 142. on silicification of organic bodies, 202. Buecinum coronatum, tenacity of life in, Buteo lagopus, 44. Buzzard, rough-legged, 44. Calabaria fusca, 201. Carruthers (Wm.), geology of Moffat, 3838. on geology of Swellendam, South Africa, 108. 450 Castor Americanus, Brandt, 21. Cervus alces, Linn., 18. Ceryle alcyon, Linn., 46. Chetospira maritima, T. 8. Wright, 380. Chalk-flints in Caithness, 159. Chameleon tricornis, 149. Charadrius semipalmatus, Kaup., 49. Charlesworth (Edward), exhibited specimens, 318. Cheimatobia borearia, 260. Chimpanzee, 41, 156. Chimpanzee, skull of, from “ Deyvil- house,” Old Calabar, 41. Chlamydosaurus Kingii, 318. Chordeiles Virginiana, Briss, 46. Chough, The, 143, 145. Chromis Niloticus, Cuv., 359. Chrysaora, reproductive system of, 218. development of Hydra tuba from, 35, Circus cyaneus, Linn., 46. Clarias jugar, 361. Nieuhoffi, 361. Clangula albeola, Linn., 55. Claparéde (Professor), on reproduction of a medusa, 1388. Clava nodosa, T. 8S. Wright, 378. Clavula Gossit, 35. Cleland (Dr John), on fishes from Old Calabar, 359. on vomer in man and mam- malia, 91. on the serial homologies of the axis, atlas, and occipital bone, 221. Clupea alba, in Firth of Forth, 180, 248. pilchardus, 289. Coelogenys paca, skeleton of, 138. Colaptes auratus, Linn., 48. Colymbus arcticus, 56. glacialis, 56. Comatula Woodwardii, Barret, 86. Corethria sertularic, 80. Corvus Americanus, Audub., 46. Coryne implexa, Alder, 59. margarica, Wright, 61. Corythus enucleator, Linn., 48. Crea porzana, 292. Curruca atracapilla, 342. Cycloid fish, capture of, in Bay of San Francisco, 138. Cygnus Bewickii, Yarr., 259. Cypselus apus, Flem., migration of, 144. Dafila acuta, Linn., 54. caudacuta, 44. Dassauville (P. A.), exhibits speci- mens of rarer British birds, 110, 259. Dendronessa sponsa, Linn., 55. Dendrophrya erecta, 276. INDEX. Dendrophyra radiata, 276. Dubuc.(Dr E. W., R.N.), on marine animals from Ceylon, 249. on deep-sea soundings, 286. Edwards (A. M‘K.), on inflammation in fishes, 228. Electris from Old Calabar, 359. Elliot (Walter, of Wolfelee), on draw- ings of Indian animals by native artists, 348. Engraulus encrasicolus, Flem., 257. Folide, thread-cells of, 38. Falco candicans, Gmel., 46. islandicus, Lath., 226. peregrinus, Gmel., 47. Felis catus ferus, 368. Fiber zibethicus, Cuv., 21. Filaria in pearl-oyster, 101. Fishes, inflammation in, 228. from Old Calabar, 259. development of spawn of, 3738. Fleming (the late Professor), proposed memorial to, 150. Fossils, Old Red Sandstone, from south of Scotland, 36. Reptilian of Morayshire, 155. Old Red Sandstone of Forfar- shire, 195. Ornithic, from New Zealand, 164. Fregilus graculus, 148, 145. Freya obstetrica, T. S. Wright, 379. stylifer, T. S. Wright, 379. producta, T. S. Wright, 380. Fringilla montifringilla, 150. Fulica atra, 348. Fuligula affinis, Yarr., 55. eristata, 348. rufina, 420. Galago murinus, Murray, 157. Garveia nutans, T. S. Wright, 62. Gatke (W. H.), on birds of Heligoland, 82. Goldie (Rev. Hugh), on silk bags formed by insects at Old Calabar, 87. Goodsirea mirabilis, T. S. Wright, 80. Goose, Canadian or Cravat, 50, 131. Gorilla, skull of, 848. remarks on, 42. Grifithides mucronatus, M‘Coy, 258. Gromia oviformis, 82. Grouse, hybrid, 44, 245, 364. Grus Canadensis, Temm., 50. Halcampa Fultoni, T. 8. Wright, 1938. Halichondria ventilabrum, 227. INDEX. Halietus albicilla, 345. Hare, Alpine, 20. Hargitt (Edward), exhibited wild cat, 368. Hearelda glacialis, Linn., 55. Heterobranchus from Old Calabar, 361. Heligoland, birds of, 82. Felix virgata, tenacity of life in, 90. Hemitrygon Ukpam, J. A. Smith, 69. Hippocrene Britannica, development of, 35. Hippopotamus amphibius, Linn., 158. Holothuria edulis, 249. new form of, 331. -Homologies of articular surfaces of axis, atlas, and occipital bone, 221. Hudson’s Bay Territories, natural his- tory of, 15, 45. Hunter (Rev. Robert), on markings on Old Red Sandstone slabs, 1638. Hydra tuba, development of, from Chrysaora, 85. Hydractinia, 283, 314. Hypocala, larva of, 372. Insects, Indian, 372. Jardine (Sir William, Bart.), on Ame- rican Ptarmigan, 48, 57. on birdsfrom Hudson’s Bay, 57. Kelaart (Dr E. F.), on pearl banks of Arippo, Ceylon, 101. Kionistes retiformis, 91, 277. Labrus bergylta, 149. Lagopus albus, and synonyms, 48. Lagotia obstetrica, T. S. Wright, 379. producta, 26. reproduction in, 28. Lamna cornubica, Cuv., 258. Lanius excubitor, 44, 110, 227, 245. septentrionalis, Gmel., 48. Lantern-fly from British Honduras, 36, 102. Laomedea decipiens, 'T.8, Wright, 352. Larus argentatus, Gmel., 56. eburneus, 57. glaucus, Temm., 259, 347. ridibundus, 3438. . zonorhynchus, Richard, and 8w., 56. Leaf insect, A new, 146. Lecythia elegans, T. 8. Wright, 277. Lepus timidus, albino of, 3638. glacialis, Leach, 20. Lepidodendron, with Lepidostrobus at- tached, 38. Lestris cephus, Brunnich, 56. Limosa fedoa, Linn., 50. Hudsonica, Lath., 50. 451 Lincta borealis, 48. Livingston (John S.), on metamor- phism in mineral kingdom, 267. Livingstone (Dr), extracts of a letter from, 131. expedition, memorial on be- half of, 133. Lizzia, reproduction of, 138. Logan (George), reports of Dredging ee and on Gadus minutus, on white bait in Firth of Forth, 130. — on herring and sprat fishery of Firth of Forth, 130, 240, 288, 442. notice of snakes and lizards from Old Calabar, 199. Logan (Robert F.), on Canada goose shot at Duddingston, 131. on Vanessa polychloros and Cheimatobia borearia, 260. on Indian insects, 372. Loxia curvirostra, Penn., 368. leucoptera, Gmel., 48. pityopsittacus, 342. Lutra Canadensis, 26. Manatus Senegalensis, Desmar., 158, 261. Mareca Americana, Steph., 54. Marine Zoology Committee, reports of, 180, 240, 442. Markings on Old Red Sandstone slabs, 163. Marmot, Quebec, 21. Mackenzie (J.), on American reindeer, 16. onthe habits of the beaver, 829. M‘Bain (Dr James, R.N.), on tenacity of life in Helix virgata, 90. ——— on fossil Nautilusfrom Sheppy, 108. on so-called raised sea-beach at Leith, 105, 422, on osteological remains from a Pict’s house in Harris, 141, 207. on bones of a Moa (Palapteryx) from New Zealand, 164. remarks on British sponges, = 238. on skulls of Manatees from Old Calabar and Bay of Honduras, 261. on development of fish-spawn, 3738. Medusa, reproduction of a, 1383. Mergulus alle, 347. Mergus albellus, 247. cucullatus, Linn., 56. serrator, Linn., 56. Meteoric Iron found in Roxburghshire, 396. 452 Merkel’s muscle, 135. Merlangus virens, 241. Metamorphism in mineral kingdom, 267. Miller (the late Hugh), on Ctenodus and Dipterus of Old Red Sandstone, 37. museum of, 151. Mitchell (J. M.), remarks on Cuvier’s statements regarding the herring, 269. on difference between the young herring and the sprat, 374. Moffat, geology of, 383. Monochirus linguatulus, Cuv., 241, 257. Monodon monoceros, 447. Moose deer, 18. Morrhua minuta, in Firth of Forth, 443. Murray (And.) Opening Address, 117. on Nat. Hist. of Hudson’s Bay, 15, 45. on eyeless beetles, 88. on progress of entomology, 120. on large cycloid fish of San Francisco Bay, 138. on supposed meteoric stone from Hudson’s Bay, 138. notice of anew leaf-insect, 146. description of new Sertula- riadee, 146. notice of Chameleon tricornis, 149. on fauna of Old Calabar, 156. Mus leucopus, Rafin, 24. Muscicapa parva, 82. Musk rat, 21. Nautilus, on a fossil from Island of Sheppy, 108. Nemertes, ova of, 198. Nucula decussata, 105. Nullipores in boulder clay, 98. Numenius Hudsonicus, Lath., 50. pheeopus, 346. Nyctea nivea, Daud., 46. Office-bearers for Session 1858-59, 38. 1859-60, 1382. 1860-61, 228. — 1861-62, 318. Oidemia Americana, Linn., 56. nigra, 139. perspicillata, Flem., 55. velvetina, Cassin., 55. Old Calabar, mammals of, 157. « Angwantibo”’ of, 172. ——— Chimpanzee, skull from, 41. snakes and lizards from, 199, fishes from, 359. ——— “Ukpam,” Hemitrygon ukpam, J. A. Smith, from, 64. INDEX. Onuphis tubicola, 162. Ophiocoma granulata, 382. neglecta, 63. rosula, 63. bellis, hooked spines on, 382. Ophideres, larva of, 372. Ophiura, new to Britain, 86. Ophryodendron abietinum, 216. Reproduction of, 274. Orthagoriscus mola, 258. Osborne (Henry), on ornithology of Caithness, 341. Otocorys cornutus, Sw., 47. Otter, American, 26. British, 244. new genus from Old Calabar, 157. Oxytricha longicaudata, 381. Pagan monuments in Outer Hebrides, 352. Page (David), on new fossil forms from Old Red Sandstone of Forfar- shire, 195. Pagophila brachytarsus, 58. Palapteryx, bones of, 165. Pancreas, human, on examination of, 151. Parus ater, 342. Parasites on Crustacea, 306, 374. Parietal bones, abnormality in, 421. Passer montanus, 69. Peach (C. W.), on chalk flints of the Island of Stroma, 159. note on Onuphis tubicola, 162. on nidus of Pontobdella and other annelides, 195. on argentine, anchovy, and other fishes, 256. on spines on Ophiocoma, 63, 382. on nullipores and sponges in boulder-clay of Caithness, 98. Pearl banks of Arippo, Ceylon, 101. structure of, 142. Pelecanus erythrorhynchus, Gmel., 56. Perdix cinereus, 227. Periosoreus Canadensis, Linn., 46. Perodicticus Calabarensis (the ‘“ Ang- wantibo”’), J. A. Smith, 172. Petrel, The Stormy, 144. Petromyzon marinus, 248. Phalaropus lobatus, Ord., 50. Phasianus colchicus, 59. torquatus, 59. Pheasant, hen, with plumage of male 58. Phoca Greenlandica, Mull., 392. hispida, Mull., 398. Z leonina, O. Fabr., 898. - leporina, 394. Phenicura suecica, 82. INDEX. Phryzus paguri, 374 Pict’s house, osteological remains from, 141, 207. Picus major, Penn., 227, 368. Pike, voracity of, 44. Pilchard, in Firth of Forth, 445. _ Pinnotheres, 249. Pintail duck exhibited, 44. Plectrophanes Lapponica, Linn., 47. nivalis, Linn., 47. pictus, Sw., 47. Plinian Society, early members of, 3. Plumularia gracilis, Murray, 148. strathionides, Murray, 148. Pluvialis Virginiacus, Borkh., 49. Podiceps auritus, 367. cristatus, Penn., 365. cornutus, 56, 367. Podiceps rubricollis, 366. Polarizing prisms of nitrate of potash, 107. Pontobdella muricata, nidus of, 196. Portuguese man-of-war, 249. Porzana Carolina, Linn., 49. Presidents’ Addresses :— Professor Balfour, 1. A. Murray, 117. W. Rhind, 211. Dr T. 8. Wright, 295. Prince-Consort, address of condolence on the death.of, 328. Procellaria pelagica, 144. Protozoa, new, Dr Wright on, 26. Pseudo-steatite, 445. Pycnogon larvee, 440. Querquedula Americana, Linn., 55. caudacuta, 247. strepera, 150. Raia M‘Coyu, W. 8. Young, 417. Rangifer caribou, 15. Reindeer, 15. Rhind (Wm.) Opening address, 211. exhibits coal fossils, 38. on reptilian fossils of Moray- shire, 155. Rhinomus soricoides, Murray, 159. Rhizopodal structure, 251. Rhizopoda, reproductive elements of, 270. Rhombus hirtus, Yarr., 258. punctatus, Bloch, 189. Rhynchaspis clypeata, Linn., 54. Robb (Rev. Alex.), on Angwantibo, 172. Ross-shire, natural history of west coast, 86. Sacculina carcino, Thomps., 311. inflata, 806, 318. 453 SacculinaTriangularis, Dr Anderson,312. Salpistes castaneus, 38. Miillert, 32. Sciurus Noveboracensis, Bonap., 47. Scolecophagus ferrugineus, Gmel., 48. Scopelus Humboldii, Cuv., 256. Scalops canadensis, Cuv.? 25. Scymnus borealis, 448. Sertularia corniculata, Murray, 148. labrata, Murray, 147. tricuspidata, Murray, 147. Sertulariade, new, from coast of Cali- fornia, 146. Serpula filograna, near the Bass, 448. Shark, Greenland, 448. Shearer (R. I.), on ornithology of Caithness, 334. Shrew-Mole? 25. Shrike, great grey, 44, 110, 227, 245. Silicification of organic bodies, 202. Smith (Dr John Alex.), notes on Old Red Sandstone fossils, 36. specimen of lantern-fly, 36. on skull of chimpanzee, 41. notices of the rarer British birds, 44, 58, 69, 110, 189, 244, 259, 292, 347, 363, 420, om Ukpam” from Old Calabar, 64. on Bos primogenius in Museum of Antiquaries of Scotland, 111. notice of British fishes, 139. on “ Angwantibo,” 172. notice of sea lamprey, 248. on equoreal pipe-fish, 291. on meteoric iron from Rox- burghshire, 396. on albino of common hare, 363. description of zquoreal pipe- fish, 139, 291, 488. Somateria V. nigrum, Gray, 54. Sorex parvus, Say, 25. Forstert, Rich., 26, Spizella monticola, Gmel., 47. Sponges, remarks on British, 2338. Squatarola helvetica, Linn., 50. Squirrel, Note on the, 361. Stenops (Perodicticus) Potto, 157. Stentor castaneus, 33. Miilleri, 32. Sterna arctica, Temm., 56, 348. Hirundo, Linn., 56. nigra, Linn., 56. Stewart (John nO on natural history of west coast of Ross-shire, 86. Stirling (A.), notice of pike, ‘4, Strepsilas interpres, Linn., 50. Strix Tengmalmi, Temm , 244, Surnia funerea, Gmel., 46. Sylvia cerulicula, 82. A an 7 sl, Vil Sylvia hippolais, 342. Tytleri, 82. Sylvicola cestiva, Gmel., 47. parus, 47. striata, Gmel., 47. Sygnathus (Nerophis, Kaup) cequoreus, 139, 290, 291, 438. pigmental system of, 438. Synodontis serratus, 359. Swellendam, Geology of, 108. Taylor (Andrew), on Old Red Sand- stone beds of Liberton and Grange, 254. Tengmalm’s Owl, 244. Tetrao canadensis, Linn., 49. melanurus, Jard., 57. obscurus, Say, 57. phasianellus, Linn., 49. medius, 44. Thomson (Dr Murray), analysis of Meteoric Iron from Roxburghshire, 414, on pseudo-steatite, 445. Thread-cells of Holide, 38. Thomas (Captain, R.N.), on pagan monuments in Outer Hebrides, 352. Totanus flavipes, Vieill., 50. melanoleucus, Gmel., 50. Traquair (Dr R. H.), on abnormality in parietal bones of a foetus, 421. on trilobites in Fifeshire lime- stone, 2538. Trichydra pudica, 440. Trachinus draco, Linn., 256. vipera, Cuv., 241, 257. Tringa alpina, Linn., 50. pugnax, 139. Trilobites in mountain limestone, 2538. Troglodytes niger, 41, 156. gorilla, 42. Tubularia implexa, Alder, 60. Turdus merula, pied variety of, 363. migratorius, Linn., 47. musicus, variety of, 245. Turner (Wm., M.B.), on. British fossil Bovine, 71. on a new muscle of the human larynx, 135, 326. on transparent injection in ex- amination of human pancreas, 161. - on non-striped muscle in or- bital periosteum, 819. Turris neglecta, reproduction of, 34. Tyrannus borealis, Sw., 48. nf pe ; pads) Yvares bj INDEX. Tytler’s Robin, 82. “Ukpam,” Hemitrygon ukpam, J. A. Smith, from Old Calabar, 64. Unio plicatus, 142. Uria grylle, Lath., 56. Vanessa polychloros, 260. Vomer in man and mammalia, 91. Vorticlava proteus, 439. Wallace (Dr John), on Phocide of the Greenland seas, 391. Weir (T. Durham), note on the squirrel feeding on birds, 361. Wernerian Natural History Society, account of, 4. Whitebait in the Firth of Forth, 130. Wild cat exhibited; 368. Wright (Dr T. Strethill). Opening ad- dress, 295. on new protozoa, 26. observations on British zoo- phytes, 34, 59, 80, 91, 193, 216, 250, 270, 276, 314, 349, 378. : on thread-cells of Holide, 38. on Goodsirea mirabilis, 80. on polarizing prisms of nitrate of potash, 107. on a ready method of finding microscopic objects under high powers, 134. on rhizopodal structure, 251. on reproductive elements of the Rhizopoda, 270. on reproduction of Ophryoden- dron, 274. on reproduction of quoria vi- trina, 316. on pigmental system of zquo- real pipe-fish, 438. Xema Bonaparti, Rich., and Sw., 56. Young (Wm.§8.), on Sygnathus equoreus, 290. on M‘Coy’s ray, 417. Zonotrichia albicollis, Gmel., 47. leucophrys, Gmel., 47. Zoophytes, British, Dr T. 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