Professor John Satterly University of Toronto Department of Physics qx'^ NATUEALIST'S RAMBLES DEVONSHIRE COAST. S. VIVIAN, PRIXTER, BROAD STREET, BATH. pia/£ xxyji 1-4 CHRTSAORA CTCLONOTA PREFACE The following pages I have endeavoured, as far as possible* to make a mirror of the thoughts and feelings that have occupied my own mind during a nine months' residence on the charming shores of North and South Devon. There I have been pursuing an occupation which always pos- sesses for me new delight, — the study of the curious forms, and still more curious instincts, of animated beings. So interesting, so attractive has the pursuit been, so unex- pected in many instances the facts revealed by the research, that I have thought the attempt to convey, with pen and pencil, to others the impressions vividly received by my- self might be a welcome service. Few, very few, are at all aware of the many strange, beautiful, or wondrous objects that are to be found by searching on those shores that every season are crowded by idle pleasure-seekers. Most curious and interesting animals are dwelling within a few yards of your feet, whose lovely forms and hues, exquisitely contrived struc- tures, and amusing instincts, could not fail to attract and charm your attention, if you were once cognizant of them. "But who will be our guide to such sources of interest?" Deign to accept these pages as your " Hand-book" to the sea-side. They contain a faithful record of what actually has fallen under an individual's observation in a single season, and may therefore be assumed to present a fair average of what may be expected again. But I have not made a book of systematic zoology ; nor VI. PREFACE. a book of mere zoology of any sort. I venture to ask your companionship, courteous Reader, in my Rambles over field and do^vn in the fresh dewy morning; I ask you to listen with me to the carol of the lark, and the hum of the wild bee ; I ask you to stand with me at the edge of the precipice and mark the glories of the setting sun ; to watch with me the mantling tide as it rolls inward, and roars among the hollow caves ; I ask you to share with me the delightful emotions which the contemplation of unbounded beauty and beneficence ever calls up in the cultivated mind. Hence I have not scrupled to sketch pen-pictures of the lovely and romantic scenery with which both the coasts of Devon abound ; and to press into my service personal narrative, local anecdote, and traditionary legend ; and, in short, any and every thing, that, having conveyed pleasure and interest to myself, I thought might entertain and please my reader. It is not the least of the advantages of the study of natural history, that it strengthens in us "the habit of wishing to discover the good and the beau- tiful in all that meet and surround us." If it should be objected that — to treat of the facts which science reveals to us, in any other manner than that tech- nical measured style, which aims not at conveying any pleasurable emotions beyond the mere acquisition of know- ledge, and is therefore satisfied with being coldly correct, — is to degi-ade science below its proper dignity, I would modestly reply that I think otherwise. That the increase of knowledge is in itself a pleasure to a healthy mind is surely true ; but is there not in our hearts a chord that thrills in response to the beautiful, the joyous, the perfect^ in Nature ? I aim to convey to my reader, to reflect^ as it were, the complacency which is produced in my own mind by the contemplation of the excellence impressed on everything which God has created. PREFACE. VU. Wordsworth has said that man and nature are essen- tially adapted to each other, and that the mind of man is naturally the mirror of the fairest and most interesting properties of Nature. The same mighty mover of the human heart tells us that " Poetry is the impassioned expression which is the countenance of all Science." And all that is required to make the remotest discoveries of the Man of Science proper objects of the Poet's art is famili- arity with them, so that " the relations under which they are contemplated by the student be manifestly and palpably material to us, as enjoying and suffering beings." Another eloquent ^vriter thus speaks of the relation existing between Poetry and the Physical Sciences. " Such studies lift the mind into the truly sublime of nature. The poet's dream is the dim reflection of a distant star : the philosopher's revelation is a strong telescopic examination of its features. One is the mere echo of the remote whisper of nature's voice in the dim twilight ; the other is the swelling music of the harp of Memnon, awakened by the Sun of truth, newly risen from the night of ignorance."* Yet I would not have it supposed that I have ever stated the facts of Natural History in a loose, vague, imaginative way. Precision is the very soul of science, — j)recision in observation, truthfulness in record : and I should ^eem myself unworthy of a place among natu- ralists, if I were not studious to exhibit the phenomena of Nature with the most scrupulous care and fidelity. Humanum est err are : I dare not suppose I have escaped error ; but I am sure it is not the result of wilfulness, I trust it is not that of carelessness. Some of the investigations here touched upon are of high interest to naturalists : such as those connected with • Hunt's ' Poetry of Science', p. 292. Vlll. PREFACE. the alternation of generations, the embryology and develop- ment of the Zoophytes, and the nature and functions of their special organs. The varied forms and singular properties of the Thread-Capsules in the Polypes and the Medusae, in particular, have excited my own admiration. The curious observations of Sir J. G. Dalyell and other zoologists on the propagation of the Hydroid Zoophytes, might seem to render those recorded in this volume need- less; but the words of the indefatigable naturalist just named warrant the multiplication of observed facts. Speaking of the mysterious appearance of certain Medusce in connexion with Tubulariee, he says, " Were similar instances recorded, our embarassments might be relieved ; for more frequent, easier, and stricter investigation being admitted, doubtless such a train of discovery, and thence the solution of what are to us the most abstruse problems, would follow." The plates have been all drawn from living nature, with the greatest attention to accuracy. They are twenty eight in number, of which twelve are printed in colours : they comprise about two hundred and forty figures of animals and their component parts, in many instances drawn with the aid of the microscope. London: March 30ih, 1853. CONTENTS. CHAPTER I. A Flitting to the Coast — Rival Claims of North and South De- von— Marychurch selected — Beauty of Devonshire Lanes — Author's Outfit — First exploring Jaunt — Babbicombe Sands — Pretty Rock-pool — Petit Tor— Jackdaws— Kestrel — Pol- lock-fishing on the Rocks — Boulders examined — Contents of a shallow Pool — Green Sea- worm — Smooth Anemone — Turn- ing stones at Babbicombe — Finger-cutting Serpulai — Naked- gilled MoUusca — Their Elegance and Beauty — Manners in Captivity — Spawn of Doris — Form and Structure of the young — Anthea — Its Form and Colours — Voracity of an Eolis — Manners of Anthea — Its Mode of marching — of swimming — Beautiful Variety — Reflections. Page 1 CHAPTER II. Petit Tor — Squirrel — Limestone Ledge — Stone-borers — Anemones and Sea-weeds — Clear Rock-pools — Daisy Anemone — Diffi- culty of procuring Specimens — Mode of Operation — A Metamorphosis — Description of the Species — Tentacles — Colours — Varieties — Habits — Structure of the Tentacles — Thread-shooting Capsules — Petit Tor Pools — ^Thick horned Anemone — Description of the Species — Suggestions of Iden- tity with A, coriacea — Its Habits — Beautiful Varieties — Changes of Figure — Deep Tide-pool— Prawn — Its Beauty of Colour — Changes produced by Exposure to Light. 21 CHAPTER III. A Visit to Brixham — The Road — Character of the Coast — Berry Castle — Legends — Brixham — Coast Scenery — Animals of the X. CONTENTS. Shore— The Painted Scallop— Its Beauty— Mantle — Tentacles — Gem-like Eyes — Climbing Powers — Leaps — Mode of per- forming these misunderstood — Explanation — Functions and Structure of the Eyes — Structure of the Gills — Ciliary Action — Beauty of the Phenomenon — Oddicombe Rock-pool — Its Form — Contents— The Feather-star — Its Habits in Captivity — Reproduction of its Limbs — Watcombe — Romantic Scenery Sandstone Cliffs— The Sea Lemon — The Purple Dye — Mode of applying it — Changes of Colour— Tor Abbey Sands— Shore Animals— The Pholas— Its Siphons— Their Use, Structure and Currents— Curious Contrivance — Anstey's Cove — View from Babbicombe Downs — Skylark's Song — Precipice of Limestone — Abundance of Animals — Pleurobranchus. 44 CHAPTER IV. The Dead Man's Fingers — Appearance when contracted — when expanded— Beauty of the flower-like Polypes— Structure — Spiculse — The Polypidom — Zoophytes and Crustacea upon Tangle — Small Nudibranchs and their Spawn— The Angled Laomedea — Its medusiform Young — Appearance, Manners and Structure of the Embryo — Escape of one from the Vesicle — Regular Arrangement of the Zoophytes — The Rosy Ane- mone— Its Locality — Description — Habits — Structure — The Snowy-disked Anemone— Peculiarities of its Locality — De- scription— The Snake-locked Anemone — Description — Fare- well to South Devon. 76 CHAPTER V. llfracombe — Beautiful Scenery —Walk to Watermouth— Hele — Hockey Lane — Fine Sea-view^Daws — Doves — Charms of Spring — Watermouth — Curious mode of Fishing — Grove of Flowers — Rabbits— Sharp Rocks — Gemmaceous Anemone — Living Madrepores — Their Localities — Appearance — Mode of detaching them — Their Structure — The Plates — Beauty of the Animal — Protrusion of the soft Parts — Their Translu- cency — Analogy with the Anemone — Brilliancy of Colours — Tentacles — Cilia on their Surface — The globose Heads — The Tentacles are tubular — Imprisoned Animalcule— Sensibility CONTENTS. XI, of the Madrepore to Light —Experiments in feeding them — Sense of Taste — Reproduction of Parts — The Frilled Bands — Their Use — Their Structure — Thread- Capsules — Singular Forms of these Organs — The Madrepore easily preserved alive. 101 CHAPTER VI. A Walk to Hele— Bird's-eye View of the Harbour— Quay Fields — Lion Rock — Hele Strand — A threatened Shipwreck — Eu- cratea — Description — Mode of Growth — Form of the Cell — Structure of the Polype— Tentacles — Digestive System — Mus- cular Bands — Evanescence of the radiate Character — ^Root- Thread — Snake-head Coralline — Frill — Vermicular Organs — Door and Hinge — Ciliated Cellularia — Cells — Spines — Birds* Heads — Their Motions — Slimy Laomedea — Structure of a Sertularian Zoophyte — Its Contraction — Marginal Folds of the Cell — Researches in Gastronomy — Anemones cooked — Eaten — Commended — Best mode of preparing them — Anthea tried. 128 CHAPTER VII. Charm of the Sea-side — Watching the receding Tide — The Lion Rock — Approach of Evening — Its Accompaniments— The Warty Cycloum — Harvey's Syrinx — Capstone Hill — Its Pro- menade— Precipitous Walks — Noble Prospects — Sunset — Bird's-eye View— The Welsh Coast — Flowers — The Summit — Inland View — Seaward Rocks — Wildersmouth — A fatal Accident — The Gemmed Anemone — Description — Habits — Production of the Young — Sea-Spider — Black Sand -worm — A second Visit to Watermouth — Flowers — A Crab at Home — A walk to Lee— Beautiful Valley— Character of the Cove — Stone-turning — The Worm Pipe-fish— Its Form and Colours — Manners in Captivity — Intelligence — Appearance of Disease — Surgical Aid — Difficulties of Microscopical Sketching. 154 CHAPTER VIII. Rock-pools — Their Abundance — Southey's Description — Its truth to Nature — Their Loveliness — Chondrus — Its brilliant Reflec- Xll. COIS'TEXTS. tions — The Brandling Coryne — A Parasite — A Beautiful Sea- weed — Structure of the Zoophyte — Origin of its Name — Tentacles — Their Structure — Egg Capsules — Escape of the Eggs — The Bird's-head Coralline — Elegant Shape of the Poly- pidom — Advantage of studying living Animals — The CeU — The Polype — Its Organization — Muscles — Economy in God's Works — A Populous Stone — Enumeration of its Te- nants— Reflections — God's Purpose in Creation — The hopeful Future — The Sessile Coryne — The Belgian Pedicellina— Its Form and Structure — Production of its Young — Its Habits — Its Affinities — ^The Slender Pedicellina — Its singular Bulb. 188 CHAPTER IX. Metamorphosis of Lepralia — Appearance of the Gemmule — Budding of the Cell- spines — Development of the Polype — Growth —The Three-headed Coryne — Singular Use of its Disk — Beania — Coralline Light — Lime Light — Tubulipora — Marine Vivaria — The Principle explained — Elegance of Sea- plants — Facilities for Study — Details of Experiments — Mode of procuring the Sea-weeds — Success — Anticpations — A curious Coincidence — Sponge-Crystals — Their elegant Form — Immense Numbers — Mutual Entanglement — Ciliated Sponge — Its crystal Coronet — Powers of Restoration. 218 CHAPTER X. Respiration and Circulation — A Transparent Ascidia — Organs of Sight— Play of the Gills— Ciliary Waves— The Heart- Cours- ing of the Blood-globules — Reversal of the Current — " Na- ture," what is it ? — The Praise of God — Luminosity of the Sea — A Charming Spectacle — Light-producing Zoophytes — Luminosity a Vital Function — Noctiluca, a Luminous Ani- malcule— Its Structure — Production of its Embryo — The Slender Coryne— Description— Parasites. 240 CHAPTER XI. Hillsborough — ^Meaning of its Name — Its Grandeur — Its Flowers — Commanding Prospects — View Westward— Inland— East- ward— Seaward — Formation of a Beach — A Rock-slip — An- CONTENTS. XllU thea-lts Tentacles retractile — Their Structure — Thread- Capsules — A Summer Morning Walk — Autumnal Flowers — Lahgley Open — The Hangman — Curious Legend — Coast Scenery — Lee — A Ship's Travels — Solitude — Caves — Sponges — The Hispid Flustra — Its Appearance and Structure — Expansion of its Bells — Ciliary Action — A miniature "Whirl- pool— Visit to Braunton — Carn Top — Tragical Legend — Score Valley — Squirrels — Trentistowe — "White Bindweed — Oak Hedges — Reaping — Braunton — Curious monumental Inscription — Braunton Burrows — Sea-side Rocks — Marine Animals — Rare Plants on the Cliffs — Snails — Botany of the Burrows — Insects — Shells — The Feather Plumularia — Its Egg- Vesicles — Young Polypes — Their Development from Planules — Structure of the Polype. 261 CHAPTER XII. A Visit to Smallmouth Caves — Chasm formed by a Rock-slip — View of Samson's Bay — Samson's Cave— Smallmouth — Natural Tunnel — View of Combmartin Bay — Brier Cave — Abundance of Animals — The Twining Campanularia — Form of its Cells— The Polypes— The Egg- Vesicles— Birth of a Medusoid — Its Form and Structure — Tentacles — Eyes — Cir- culating Canals^Altemation of Generations — Ride towards Barricane — A Showery Journey — Lee — Damage Farm — A romantic Dell — Devonshire "Wells — Rockham Bay — White Pebbles — Morte Stone — Shipwreck — Gallant Exploit — Morte — ^Tomb of De Tracy — Approach of a Storm — Kestrels — Parasites on a Crab — The Bristle Plumularia — Birth of its Young — Dissolution — The Lobster's Horn Coralline — Second- ary Cells — Suggestion of their Purpose — Egg- Vesicles — Birth of the Planule — Its Development into the Polype-form —Death. 292 CHAPTER XIII. Capstone Spout-Holes — Purple Hue of low Rocks — ^Tadpole of a Mollusk — Its Habits — Visit to Barricane — A Beach of Shells — Rock-pools — Their Contents — Antiopa — Its Spawn — Hatch- ing of the Embryos — Immense Number in one Brood — The Torrs — Bloody Field — Flowers— View from the Cliff— Torr XIV. CONTENTS. Point — Rocky Staircase — "White Pebble Bay — Tide-pools — Maiden-hair Fern — ^The Precipice — A curious Medusoid — Medusoid Fishing — Mode of Operation — Difficulties — Thau- mantias pilosella — Its Luminosity — Description of its Struc- ture—The UmbreUa— The Sub -Umbrella— The Peduncle— The Radiating Vessels — The Ovaries — The Tentacles — Pig- ment-cells—Eyes. 320 CHAPTER XIV. Rapparee Cove — Strange Gravel — Its singular Origin — The Glassy -^quorea — Its Form and Structure — The Forbesian ^quorea — The Bathing-Pool — Medusae therein — Description of a new Species — Its Habits — Luminousness — Distinctive Characters — The Ruby Medusa— Its first Occurrence — Wig- mouth — Production of the Gemmules — Their Appearance — - Motion of the Turris — Metamorphosis of the Gemmules — Their Polype-form — Goodness of God in the Beautiful — A Christian's Interest in Nature — The Redeemed Inheritance — The Crystalline Johnstonella — Its Beauty — Its Doubtful Affi- nities— ^The Starry Willsia — Parasitic Leech — Thread- Cap- sules— Nature of these Organs. 338 CHAPTER XV. This Coast favourable for Oceanic Productions — The Red-lined Medusa — Its Form and Structiure — The Eyes — The Fur- belows— A parasitic Shrimp — Its supposed Young — Beauty of the Medusa — Its Prehensile Powers — Capture of Prey — Curious Mode of eating— Experiments — ^New Use of the Furbelows — Development of the Eggs — Their Structure — Thread-Capsules — Synonymy — The "White Pelagia — The Mantis Shrimp — Its spectral Figure and strange Actions — Its "Weapons — The Caddis Shrimp — The Tiny Oceania — Busk's Thaumantias — The Fairy's Cap. 363 CHAPTER XVI. The Maritime Bristle-tail — Its Nocturnal Habits — Discovery of its Retreats— Its Companions — The Scarce Polynoe — Its Armoury of "SVeapons— A rocky Bay — Romantic Incident — CONTENTS. XV. Chivalrous Self-sacrifice — The Tunnels — Crewkhorne Cavern —The Torr Cliffs— Precipitous Path— Torr Point— Solitude— The Scarlet and Gold Madrepore — Scene of its Discovery — Description of the Species — Its Microscopical Structure — The Stony Skeleton — Thread -Capsules of Actinia — The Club- bearing Medusa — Entanglement of Air — Structure of the Tentacles— The Eyes. 389 CHAPTER XVII. Various Effects of Light on Scenery — Ode to Light — The Sabella — Its Tube — Its Crown of Plumes — Patal Attack — Discovery of more Specimens — Laborious Mode of Procuring them — The Young — Reproduction of the Crown — The Corynactis — A low Spring-tide — The Tunnel Rocks — Discovery of the Species — Its Form, Structure, and Colours — Manner of taking Food — ^Thread- Capsules — Their elaborate Structure — Propul- sion of the Thread — Identification of the Species — The Pur- ple-spotted Anemone — Its Locality and Manners — Its Form and Colours — Thread- Capsules — Nature of these Organs — Systematic List of Zoophytes — Conclusion. 412 APPENDIX. Marine Vivaria — Facts Established — Ozone— Its Mode of Action — Application of Principles — Aquaria in the Zoological Gar- dens— Parlour Aquarium. 439 LIST OF PLATES LIST OF PLATES, Plate To face page 1 Actinia bellis, &c. m * >) 28 2 Pleurobranchus, &c. - . M 66 3 Alcyonium, &c. ^ - )? 78 4 Laomedea geniculata - - >> 84 5 Caryophyllia Smithii - - ,, 112 6 Eucratea chelata, &c. - - ,. 134 7 Cellularia ciliata, &c. ^ . >J 142 8 Actinia gemmacea, &c. - - >> 168 9 CorjTie ramosa - - „ 190 10 Cellularia avicularia - - M 196 11 Antennularia antennina . * J, 314 12 Pedicellinge * - ,, 210 13 Lepralia, &c. - * ,, 218 14 Corynes - - ,, 222 15 Clavellraa, &c. . - >J 236 16 Coryne stauridia, &c. - . 254 17 Plumularia pinnata - - Jl 288 18 Campanularia - - >l 296 19 Medusoid of Campanularia - „ 300 20 Willsia, &c. - . >« 360 21 Thaumantias Corynetes - - ,, 408 22 Medusoid of Coryne, &c. - - >> 332 23 ^quorea vitrina - - ,, 342 24 ^quorea Forbesiana . - ») 346 25 Johnstonella Catharina . - >> 356 26 Balanophyllia, &c. - - - ,. 400 27 Chrysaora. - - - (Frontispiece) 28 Thread- capsules - - » 428 A NATUEALIST'S KAMBLES. CHAPTER I. A Flitting to the Coast — Rival Claims of North and South De- von— Marychurch selected— Beauty of Devonshire Lanes — Author's outfit — First exploring jaunt — Babbicombe sands — Pretty Rock-pool — Petit Tor — Jackdaws — Kestrel — Pol- lock-fishing on the Rocks — BoTilders examined — Contents of a shallow Pool — Green Sea-worm — Smooth Anemone — Turn- ing stones at Babbicombe — Finger- cutting Serpulse — Na- ked-gilled Mollusca — Their elegance and beauty — Manners in Captivity — Spawn of Doris — Form and Structure of the young — Anthea — Its Form and Colours — Voracity of an Eolis — Manners of Anthea — Its Mode of marching — of swimming — Beautiful Variety — Reflections. "You are seriously ill, Henry," said my wife; "you have been in the study a great deal too much lately ; you must throw it all up, and take a trip into the country." " 0 no," said I, " not bad enough for that, I hope ; a few days' inaction, with God's blessing, will set me right. I do not want to leave London." But I got worse ; sitting by the parlour fire, doing nothing, was dreary work ; and it was not much mended by traversing the gravel walks of the garden B 2 A FLITTING ill my great coat: there was notliing particularly refreshing in the sight of frost-hitten creepers and chrysanthemums in January. To walk about the streets in the suburbs, or even in the city, was dreary too, when there was no object in view, nothing to do in fact but to spend the time. But, after all, the dreariness was in myself; I was thoroughly unwell, overworked, and everybody said there must be a rustication. The Doctor added the casting vote: — " Bad case of nervous dyspepsia ; you must give up study, and go out of town." I succumbed. "Now where shall it be ? Leamington — Ton- bridge Wells — Clifton?" No, none of these; since I must go, it shall be to the sea-shore ; I shall take my microscope with me, and get among the shells and nudibranchs, the sea- anemones and the corallines. What part so promising as the lovely garden of England, fair Devonshire ?" Devonshire then was decided on. But North or South Devon ? The Bristol or the British Chan- nel ? Ilfracombe or Torquay ? Each had its claims for preference, each was unknown, each was said to be "comely in its kind;" South Devon I knew (by report) to be rich in its marine zoology ; North Devon was described as magnificent in scenery. Each too had its objections. The South was too relaxing for a nervous complaint ; the North was out of the world, and difficult of access in winter. So nearly were the pros and cons balanced, that the very evening before the time determined on for starting left the point suhjudice, when a friend calling, a Torquay man, settled it. TO THE COAST. 3 "Why not try Marychurcli? It is very high, and the air is hracing. Moreover you will he within an easy walk of the shore at several points; the coast round is indented with coves and inlets; most of it is very rocky, and will give you plenty of hollows and dark pools, full of sea-weeds and zoophytes, interchanged now and then with sandy and shingly heaches. Try the South first; you will then be as well situated as now for reaching the North coast, should the air not suit you." The counsel seemed sound and seasonable. The next day the luggage was sent off to the Torquay station, and we all, (wife, self, and little naturalist in petticoats) followed by easy stages. And very pleasant it was to us to find ourselves at the end of January in the midst of the "Devonshire Lanes." No frosts had as yet sullied the verdure of the hedge banks, or nipped the shrubs in the sweet cottage gardens. Indeed frost seems here almost unknown, if we may judge by the myrtles dressed in their glossy foliage of deepest green, reaching up to the eaves of the houses, and the fuchsias, not always of the most common varieties, whose thick roughened trunks have evidently braved the open air through many winters. As we trudged, despite the tenacious red mud that lay ankle-deep, along the narrow lanes around Marychurch and West-hill, lanes that were even now dark with the tall hedges, and the roadside trees that met over our heads, we felt that we had left the reign of winter far behind us. The high sloping banks were fringed every where with the long pendent fronds of the hart's tongue fern ; the broad arrowy 4 DEVONSHIRE LANES. leaves of the wake-robin, glossy and black-spotted, and great tufts of the fetid iris, a rare plant elsewhere, were springing up from all the ditches. Strange warm damp lanes, so suited for lovers' evening walks, (not exactly at this season to be sure) winding and turning about, ever opening into some other lane, that again presently into another, and all leading apparently nowhere, — with the little birds hopping fearlessly about the hedge-tops and the trees overhead, the robin sweetly singing, the tiny gold-crest peeping into the crevices of the ivy, the yellow hammer and the chaf- finch in their gay plumage twittering almost within reach of your hand ! And ever and anon we pass some thatched cottage in the sheltered bottom, its little garden in front trimly kept, and still bright with the blossoms of the chrysanthemums, the trailing roses over the porch displaying a lingering flower or two, and the indispensable myrtle peeping in at the cham- ber lattice ; while at one of the lower windows sits the venerable dame in a snowy cap of ancient fashion, with horn spectacles on her wrinkled but gentle face, reading her large Bible. Early violets were beginning to peep from their lowly retreats, and very soon we found them in plenty, and the delicate pale yellow primroses quickly bespangled every bank. It was in the midst of such rural scenes, and yet within a quarter of an hour's walk of the boundless sea, that I set myself down for a temporary sojourn. I had brought with me a plain but good working compound microscope, a small simple one, and a few books essential to the littoral naturalist. Among them were Cuvier's and Jones's Animal Kingdom, BABBICOMBE BEACH. O Forbes' Star-fishes and Naked-Eyed Medusae, John ston's Zoophytes, Sponges, and Introduction to Con- ohology, Yarrell's Birds, and Fishes, Alder and Hancock's Nudibranch Mollusca, Swainson's Mala- cology, Grant's Outline of, and Owen's Lectures on. Comparative Anatomy, Audouin and M. Edwards' Littoral de la France, Harvey's Marine Algee, and his beautiful little Sea-side Book, and a few minor works on the same or kindred subjects. I was not long in discovering that with such aids to inquiry, an ample field was before me, and that I should not lack abun- dant materials of entertainment and instruction for myself, and, as I hope, for others also. It was on the very first afternoon, that is to say, on the 30th of January, 1852, that I set forth to see what promise the shore might afford. A zigzag road, such as a carriage can traverse, leads down the steep from Babbicombe to the beach below. The beautiful coast stretches away before us ; first appear the blufi* red headlands from Petit Tor northward, in distinct pro- minence, but each becoming more dim than its prede- cessor: the white houses of Exmouth shining in the full afternoon sun on the blue hazy shore ; thence the blue becomes fainter, more hazy and watery, and the band of coast itself slenderer, till at length it can only be discerned by the eye carefully tracing it from the visible part onward. In front expanded The peaceful main, One molten mirror, one illumin'd plane Clear as the blue, sublime, o'erarching sky. MONTGOMERT. The rocks to the right presented little to reward (5 TIDE POOL. the toil of scrambling over their projecting masses, but I observed strong iron bars driven perpendicularly into the crevices here and there, to which, in one case, a line was affixed that ran out into the sea : this I was told was attached to a herring-net, set across the tide ; though few herrings are yet come in. On the sand and shingle were several young dog-fish ; pro- bably hauled in the seine, and thrown out to putrefy as useless. Towards Oddicombe on the left, in climbing and crawling around the face of the rough cliff, I found a pretty tide-pool, a delightful little reservoir, nearly circular, a basin about three feet wide and the same deep, full of pure sea-water, quite still, and as clear as crystal. From the rocky margin and sides, the puckered fronds of the Sweet Oar-weed, (Laminaria saccharinaj sprang out, and gently drooping, like ferns from a wall, nearly met in the centre; while other more delicate sea- weeds grew beneath their shadow. Several sea-anemones of a kind very different from the common species, more flat and blossom-like, with slenderer tentacles set round like a fringe, were scattered about the sides : when touched they contracted, more and more forcibly, into a whitish grey tubercle. PETIT TOR. Feb. Srd. — When the tide was nearly at ebb, I walked down to the cove at Petit Tor. The red earth, so abundant hereabout as to tinge the clothes of the peasants, the coats of the numerous donkeys, and the wool of the sheep, of a rufous tint, was satu- rated by the recent rains, and formed a tenacious mud, PETIT TOR. 7 very unpleasant to walk in, of which the little lane leading from Marychurch has quite enough. This passed, however, a gate leads out on the down at the summit of the cliffs, whence, as the day was most cloud- lessly brilliant, the prospect out upon the sea was mag- nificent. There was scarcely any wind, the atmosphere was very clear, and the transparent blue of the water sparkling in the sun was particularly summery The mossy turf of the down was scarcely firm enough to sustain the tread on the slope, but continually slid away beneath the feet from the ruddy mud, affording a treacherous footing in the descent, which as the pathways over the cliffs frequently pass close to the edge of tremendous precipices, is not without danger. A zigzag road, however, leads down to the beach through the gully, or chine, ( as it would be called in the Isle of Wight) which bears the name of Petit Tor, though this name belongs of right to the bluff promontory on the south of it. The object of the road appears to have been the transport of the beautiful variegated marbles, huge blocks of which, some of them sawn and marked with numbers, were lying beside the way at different points, ready for removal. By running, jumping and sliding I arrived at the bottom, and paused awhile to look around. The ruined walls of what was once probably a fisherman's cottage, built in the curious manner peculiar to the neighbourhood, of rough frag- ments of friable limestone, set in a strong red mortar, stand on the declivity ; and in the midst of the beach, starts up from the very shingle a pointed columnar mass of rough conglomerate rock about 60 feet high, remind- ing one of our common idea of the pillar of salt. The 8 jackdaws' manceuvres. back of the cove is like the receding slope of an amphitheatre, on the grassy sides of which, half-covered with furze-hushes, and tufts of the stinking Iris, and brakes of fern, a few sheep were grazing. On the northern side the cliffs of red conglomerate rise to a great height ; and on looking up to the summit my eye was caught by the Jackdaws, which were playing there, and I sat down on a mass of rock partly hidden by fern and brambles to watch their movements. A Jfiock of fifty or sixty, sometimes more, sometimes fewer, were flying about a chasm near the lofty inaccessible summit, now and then alighting in the fissures, then shooting down into the air to join their comrades' play. They uttered a short querulous call, more sharp and impa- tient than the caw of the rook, and occasionally two would engage in a sort of conversation, a rapid reite- ration of the note. Now they disappeared one by one, and presently they would come trooping round the seaward face of the headland in little companies, as if assembling by agreement, their glossy backs and wings gleaming in the bright sun, play awhile in the air about the chasm, then go again. The rough face of the rock was partially concealed by large patches, green and yellow, of ivy, reaching, irregularly and interruptedly, from the very base to the top ; in the upper parts of this, the daws would frequently rest awhile, but not long. A Hawk, which from its size, and the dark margin of its tail I took to be the Kestrel, was hovering among the troop ; its superior ease and grace of flight were very observable, though the daws are birds of powerful wing. The latter were apparently unfavourable to the intrusion of the suspicious stranger; SEA-SIDE BOULDERS. 9 for they set upon him in a troop and chased him away, though not far. Presently a Gull came by and sailed away straight out to sea for a long distance, then turned, as if to challenge the terricolous daws to try an ocean-flight with him. The beach ends northward in a wilderness of boul- ders, enormous masses of red conglomerate detached from the precipice above, and piled in confusion upon each other, — Pelion uponOssa, and Ossaupon Olym- pus. This sort of composite rock readily yields to the action of the weather, and hence the fallen masses take rounded forms. On one of the most prominent stood a gentleman, angling ; I scrambled over to him, and learned that he was fishing for pollock ; they come in shoals and bite readily ; but it was rather too early in the season now. Great boulders like these do not generally afford a very favourable field to the naturalist ; whore, however, one is resting partially on others, so as to allow an examination of its under side, this is sometimes pro- ductive, provided it be not far from low-water mark. In a dark cavernous recess here I found attached to the overhanging surface of a huge mass, a specimen, as big as a dinner-plate, of that curious dense sponge discovered by my esteemed friend Mr. Bowerbank, and named by him Pachymatisma Jolmstonia. In another similarly situated, was a numerous colony of the common smooth Sea-anemone {Actinia mesemhry- anthemum), composed, in about equal numbers, of two pretty varieties, the one a fine dark red, the other a clear grass-green. I went back to the limestone ridge at the southern iO SMOOTH ANEMONE. extremity of the cove and amused myself with examin- ing the little shallow tide-pools, one or two inches deep, regularly paved with small muscles, and fringed with dwarf fuci^ ulv(e, Rhodyme?iia jpabnata, and coralHne, — representatives of the olive, green, red, and stony sea-weeds, all gathered together, but all stunted and poor, being so high above low-water line. Seve- ral of a long slender many-footed sea-worm fPhyllo- doce lamelligera), looking like a centipede, but of a bright green colour, were lithely crawling and turning among the sea-weeds and muscles, and were difficult to get hold of, from their length and slipperiness. These shallow pools, the sides of the rocks, the boulders, and the small stones left dry by the tide, are all studded with the common Smooth Anemone (Act. mesemhryanthemum) in great abundance. The most frequent variety is of a rich deep red, sometimes brightening into blood-red, but more ordinarily deep- ening into a full brownish purple or liver- colour. Less common is the olive variety, likewise varying in tint according as the green or the brown element prepon- derates. And not rarely we see specimens, usually of large size and of oval outline, with the ground-colour dark-red, marked with numerous and close-set green dots. This species is the most careless of exposure to the air of all our native zoophytes; we see them adhering to the rocks almost up to high-water mark, so that the periods during which these are left dry are considerably longer than their immersions. Yet it is only while covered with water, that they expand their beautiful flower-like disks and petaloid tentacles, and consequently obtain nutriment. And even when we NAKED-GILLED MOLLUSCA. 11 look at such as are immersed, we quite as frequently see them closed as open. Southey has poetically described the influence of the returning tide upon these charming creatures. Meantime with fuller reach and stronger swell, "Wave after wave advanced ; Each following billow lifted the last foam That trembled on the sand with rainbow-hues : The living flower that, rooted to the rock. Late from the thinner element Shrank down within its purple stem to sleep, — Ifor feels the water, and again Awakening, blossoms out All its green anther-necks. Thalaba, xii. 3. * NAKED-GILLED MOLLUSCA. Feb. \^th, — The beach atBabbicombej which, when the tide is in, is composed entirely of pebbles, changes lower down to larger stones, and at extreme low water presents only rounded and flattened blocks from six inches to a yard in width. They are invested with a clothing of green weeds, and are hence slippery to walk on, and when their drapery is flagged and half withered by the sun, are unpleasing to the eye. It struck me that I might find something under them, however, and I spent an hour or two turning them over, not without some loss of blood, for their edges and under sides were crowded with the shells of Serpulce, the little projecting points of which over the mouth were as sharp as needles, and cut and tore my fingers continually. But I was rewarded by a good many of those elegant creatures, the naked 12' MANNERS OF BOLIDES. gilled Mollusc a, wLicli were adhering to the surface of the loose stones, awaiting the return of tide. The large grey Eolis pajnllosa, the little Doris hilamellata, and a more minute buff-coloured species of Doris^ I took here ; and the pretty green Polycera ocellata was nu- merous ; but the most abundant, and at the same time the most lovely species was the exquisite Eolis coronata, with tentacles surrounded by membranous coronets, and with crowded clusters of papillae, of crimson and blue that reflect the most gem-like radiance. I brought home my captives and placed them in a vase of sea-water to observe their manners. When out of water they exhibit nothing of their peculiar beauty, and if the searcher has not a sharp eye, he may readily overlook them ; they look like little shapeless lumps of fibrous jelly. But on being dropped into water, no sooner do they feel the bottom and begin to crawl, than all the clustering branchiae are separated and waved, the long oral tentacles are thrown from side to side, and the pellucid animal glides quickly along with a graceful even motion. Both the species of Eolis bristle up their branchiae and throw them forward when irritated. One or two of my specimens had lost some of their tufts of these organs, which were evidently sprouting again. I tlunk that they lost some while in captivity. E, coronata was very active, continually gliding with a uniform motion around the sides of the vessel, or climbing about the numerous branching sea-weeds, that were growing in it. They frequently crawled close to the edge of the water, but never came actually SPAWN OF DORIS. 13 out, though they occasionally floated at the surface by means of the expanded foot, back-downward. Polycera oceUata on the other hand is fond of coming out of the water, and of remaining at the edge of the vessel, when it looks like a little ball of olive-coloured jelly. It frequently floats by the foot, and is capable of a slow progression in this manner. If pushed under water, it retracts its bran- chiee and tentacles, incurves the edges of the foot, and sinks rapidly to the bottom ; but soon recovers its equanimity, and crawls up to the summit of the nearest sea-weed, or up the sides of the reservoir to the surface again. Doris tuberculata slowly glides round and round the vessel just beneath the surface, now and then lifting and puckering up the edge of the cloak, and allowing the air to bathe the body. Doris hilamellata, of which there were three in the vessel, was very social in confinement, continually finding out one another, and crowding close up toge- ther. They crawl round the pan, generally resting close to the surface, often with the mantle a little raised, so that the air may reach the body. Feb. 22nd. — The Doris hilamellata laid a ribbon of spawn attached to the side of the pan almost at the surface of the water. It adhered by one edge and formed an imperfect spire or cup, the ribbon being bent upon itself; the upper edge or brim leaning a little outward, and being puckered. The general substance is white and opaque, owing to a vast number of minute eggs, enveloped in a clear jelly. The colour therefore appears uniform except c 14 YOUNG OF DORIS. that a clear line runs round just within the edge, caused by a narrow space free from eggs The ova, though numerous and close-set, occupy only the cen- tral portions of the hand (seen in section), there being a considerable space of transparent jelly with- out them, on each surface. The Doris was disturbed, 'and seems to have finished prematurely, the latter part of the ribbon being distorted. Within a day or two after this, the other two of the same species laid their spawn ; it had much the same appearance as the first, that of a long ribbon irregu- larly bent or folded on itself; that of the largest is above f ths of an inch high, and 1 inch long. Early in March I observed, similarly attached to the overhanging surface of a rock between tidemarks, a ribbon of like appearance, but much larger ; about fths of an inch high. Doubtless this was the spawn of D. tuherculata : it hung down in a wet flaccid manner, being left uncovered by the recess of the tide. On the 19th of March I cut ofi" a small piece of the first ribbon of spawn (laid Feb. 22) and examined it beneath the microscope. I found that the young were fully formed, each enclosed in a globular egg, perfectly transparent and colourless. The young Doris, unlike the adult, which is a naked slug, inhabits a transparent shell, formed like that of the nautilus, from the mouth of which project two large fleshy cir- cular disks set round with long cilia. These latter organs were in constant and vigorous vibration, by the motion of which each little animal revolved freely in its egg-shell, incessantly turning upon its centre GREEN ANTHEA. 15 every direction. Sometimes one would suddenly suspend the motion of its cilia, as if tired ; then after having rested a few moments, put forth one cilium in a cautious manner, then another, and in a moment the whole were again in vibration, and the little embryos was gyrating in its giddy dance. The embryos remained active in the piece of the ribbon under the microscope, for several days, but did not appear to increase in development, nor were any hatched. They then became motionless, and were doubtless dead. ANTHEA CEEEUS. Feb. 2d)'cl. Under a stone at low water mark I found a fine specimen of Antliea ceretis, attached to the under surface. I kept it some days in the viva- rium, where its appearance was very beautiful. The body is about Ij inch thick, and the same in height, of a purplish-brown hue marked with numerous lon- gitudinal narrow bands of dull lilac, each band mar- gined with darker colour. The tentacles when fully expanded are 1|- inch long, and about a line in thick- ness at the base, tapering gradually; of a brilliant satiny light-green, with the tips purplish*red. The tentacles were contractile but not retractile, and were never regularly radiating, but mingled irregularly in a tortuous manner in all directions. They were adhe- sive to any foreign substance on all parts of their surface The body was frequently distended by the imbibition of water; when it became more pellucid. In the same pan I had three individuals of Eolis 16 FEROCITY OF EOLIS. papulosa. One of these was rather large, the others scarcely half grown. One day I found the largest eating the tentacles of the Anthea, and when I at- tempted to pull it away, it held so firmly that the mouth was almost everted. Soon afterwards I again found it at the same work of destruction, and one of the smaller specimens was attacking the unfortunate Anthea also. They were eager and fierce, stretching forward to their prey from their points of attachment, to which they adhered only hy the extremity of the foot, and frequently erecting and reversing their crowded branchiae. On being again removed they again returned, though from a considerable distance; so that whenever I looked at the pan, I almost always found one or all of the Bolides devouring their victim, so much larger, though more sluggish, than them- selves. The tentacles when gnawed and torn, became shrivelled ; some of them were torn away by the Eolides, and a large quantity of viscid albuminous matter was discharged in the form of irregular threads or webs, attached to the surrounding objects. The process went on from day to day On one occasion, one of the Eolides attacked a magnificent Actinia crassicornis in the same vessel, and had eaten a hole in its side as large as a pea before I discovered it. Anthea cereus is abundant around Tor Abbey Headland, inhabiting in great numbers the shallow pools in the red sandstone and conglomerate, which occur on the broad surface left exposed at low water. They are principally of the variety with plain grey ten- tacles, but specimens of the more beautiful variety described above, having those organs of a satiny MANNERS OF ANTHEA. 17 green with rosy tips, are sufficiently numerous. They are content to be covered with a few inches of water, their bases resting on the rough bottom, in which they seem to be imbedded to a slight depth ; but this is probably the effect of the animals' choosing a hollow of suitable dimensions ; for I do not believe that their muscular base has any faculty of eroding the rock. When half-a-dozen or more are seen inhabiting a small pool, their appearance is curious, and not a little beautiful. The great mass of long and slender tenta- cles are not arranged, like those of other Actiniat, in circles of divergent rays, but contorted and inter- twined in all directions, like the dishevelled snake- locks of Medusa's head. In the beautiful lines already cited from Southey, I think he had this species in view when he speaks of the "green anther necks" ; but the "purple stem" of the sleeping one was most likely the common Smooth Anemone. Perhaps he thought that they Avere the same species in different conditions. In a large vase of sea-water Antheas actions are as peculiar as its appearance. It is fond of climbing up the sides of the glass, a feat which it accomplishes with a considerable measure of (comparative) activity. It glides up by the broad fleshy base, pretty much in the same manner as a gasteropod does by its expand, ed foot ; and yet the process is not exactly the same. The power which Anthea has of inflating portions of its body, swelling them out in large tumid lobes separated by deep sulci from the rest of the circum- ference, assists it in crawling. We will suppose the Anthea resting on the bottom of the vessel, when it 18 BEAUTIFUL VARIETY OF ANTHEA. feels a desire to mount the sides of the glass. Push- ing out a great inflated lobe towards that side, the sok of which is free from the surface, it takes hold of the glass with the edge of the lobe, and when the contact is firm, relaxing its former hold, it slowly drags forward the body, until the lobe is again lost in the general circumference, or even till the body pro- jects in two smaller lobes, one on each side of the principal one. The base being now made firmly to adhere, again the lobe is freed, and again protruded, and the same process is repeated until the animal is satisfied with the position that it has gained. Some- times this is at mid-height, the intertwined tentacles streaming loosely down by their own weight. At other times it rises to the very water's edge, and even thrusts out its base in an inverted position upon the surface of the water, as if it would float by the mere contact of the dry base with the air, just as the Isinnece and many other Mollusca do. It does not, however, so far as I can judge, appear capable of quite accomplishing this; but it can remain so suspended, if the slightest possible portion of the margin remain in adhesive contact with the side of the glass.* A little shaking of the vessel, however, causes the water to overflow the surface of the base, which had been hitherto dry, when the animal in- stantly falls prone to the bottom. April 2Srd. — I found a curious and beautiful variety of Anthea cereus in a pool at Tor Abbey Headland. Its body and oral disk are very light * I have since seen one, however, floating quite freely on the surface of the vessel, base uppermost. SYSTEMATIC RANK OF ZOOPHYTES. 19 pellucid olive, but the tentacles are spotless snowy white, as if carved out of ivory, or rather as if mo- delled in the purest white wax. Its appearance, as it hangs on the side of a glass vessel, with the long and slender tentacles arching and drooping downward in the most graceful curves, is exquisitely attractive. These objects are, it is true, among the humblest of creatures that are endowed with organic life. They stand at the very confines, so to speak, of the vital world, at the lowest step of the animate ladder that reaches up to Man ; aye, and beyond him. Creatures linked in the closest alliance with these were long reckoned among the sea-weeds and mosses, even by the most eminent philosophers ; and to this day the collectors who make sea-weeds into pretty baskets, arrange the hydroid polypidoms among them without a misgiving of their identity. Nay, the madrepores and corals, nearer kindred still to the Actinia, were supposed even by the immortal Eay, to be inanimate stones, with " a kind of vegetation and resemblance to plants." The lamp of vitality, then, is just going out in these forms ; or, if you please, here we catch the first kind- ling of that spark, which glows into so noble a flame in the Aristotles, the Newtons, and the Miltons of our heaven-gazing race. What then ? shall we despise these glimmering rays ? Shall we say they are mean creatures, beneath our regard ? Surely no : God does not despise them. The forecasting of their being 20 A TRIBUTE OF PRAISE. occupied his eternal Mind " before the mountains were brought forth ;" the contrivances of their organization are the fruit of his infinite Wisdom, and elicit adoring wonder and praise from the hierarchies of angels ; and the exquisite tints with w^hich they are adorned are the pencillings of his almighty Hand. Yes, 0 Lord! the lowly tribes that tenant these dark pools are, like the heavens themselves, " the work of thy fingers/' and do as truly as those glowing orbs above us " declare thy glory," and " show thy handy work." If then they were worthy to be created and sustained by Thee, they are not unworthy to be examined by us with reverential regard. CHAPTER II. Petit Tor — Squirrel— Limestone Ledge— Stone-borers — Anemones and Sea-weeds — Clear Rock-pools — Daisy Anemone — Diffi- culty of procuring Specimens — Mode of Operation — A Metamorphosis — Description of the Species — Tentacles — Colours — Varieties— Habits— Structure of the Tentacles — Thread -shooting Capsules— Petit Tor Pools— Thick-homed Anemone — Description of the Species — Suggestions of Iden- tity with A. coriacea — Its Habits — Beautiful Varieties — Changes of Figure — Deep Tide-pool — Prawn — Its beauty of Colour — Changes produced by Exposure to Light. The beach of white shingle at Oddicombe, whither ladies so often repair to search for pebbles containing fossil madrepores, washed up by the tide, is bounded on the north by the promontory known as Petit Tor. This is a bold bluff headland, almost entirely compo- sed of compact limestone, which, on the side that fronts the sea, has been extensively out away by the quarrymen, for building and ornamental purposes. Its rounded summit is clothed with a turf of that beautifully smooth and close texture, peculiar to downs, which many a nobleman's lawn might envy ; sheep love to graze on it, and may be seen perched about the giddy heights, and upon the narrow winding footpaths that their own steps have worn, nipping the short fine grass in perfect security, where a false step must send them down upon the stony beach below. The always verdant and almost always blossoming 22 SQUIRREL. furze covers large spaces with its profuse clumps, interspersed with beds of the stinking Iris, a plant which has little to recommend it, but w^hich is very- common on these seaward slopes. Down the perpen- dicular steeps hangs and creeps the ivy, concealing the rugged rock with its evergreen beauty ; and on the slopes that are less precipitous, matted thickets of the brake-fern and bramble inclose and protect little sheltered spots, where, all through the spring, primroses grow by handfuls, and stud the hill-side with thick spots of their delicate yellow, as thick as stars and constellations in the sky of a winter's night. In these thickets I was rather surprised and pleased to find the Squirrel residing ; one morning in March as I was quietly sitting on a stone, looking down from the brow of the promontory on the sea that was beating in over the rocks below, out pops Squggy, and with a grunt and a flourish of his feathery tail over his back in he dashes again, then out to peep, and away to go again ; I all the while holding my breath, in hopes to confirm his confidence. But no ; he would not adventure again. The limestone at the base of the promontory, on that side I mean which faces the south, and bounds Oddicombe beach, is very precipitous ; but it has been fretted by the incessant breaking of the waves into caverns and groins, buttresses, basins, shelves and ridges of all sorts of fantastic shapes. In some places there are spout-holes, the sea running up into a funnel-shaped cave, with a peculiarly hollow sound when you hear it beneath your feet, and breaking out at an opening some way within, wdth a gust of wind STONEBORING SHELL-FISH. ^ 23 and spray, and a loud roar. The surface of the rock itself, from some distance above high- water mark downward, is corroded into a thousand little cavities, all honey-combed, as it were, in the most irregular manner, a circumstance which greatly facilitates the action of the sea in wearing down the masses. These cavities have been produced by a stoneboring shelled Mollusk, Saxicava rugosa, which, as I believe, attacks only limestone, but this, hard as it is, it burrows through and through. It can live only where it is covered during a part of every tide ; and therefore as part of this honey-combed structure is now above the reach of the tide, it must be inferred that this lime- stone has been elevated, since the existence of these stoneborers. It would be worth wdiile to inquire how far the honey-combed limestones of other regions, of the South side of Jamaica for example, may have had a similar origin, though this is explained by Sir H. de la Beche in a very different manner. One can scramble out upon the side of these rocks at low water, and find between tide-marks a sort of ledge sufficiently level to permit examination ; though the rough surface, and especially the sharp points that project between the honey-combed cavities, ren- der the footing precarious and uncomfortable. The surface is leprous with myriads of acorn-shells, each tenanted by its living inhabitant, and every one put- ting forth, as soon as covered by the tide, its delicate little grasping hand of feathery fingers, or, if you please, its casting net, with which it is perpetually making its little throws for passing prey. Limpets, periwinkles, and murices also stud the rock, and in 24 ANEMONES AND SEA-WEEDS. the lower parts, where the limits of the tide's recess are approached, are ActmicB of a deep red hue, the common, unattractive species, the only one known however to thousands of sea-side visitors who talk enthusiastically of sea-anemones, — A. mesemhryan- themum. The whole of the space between the tide lines is covered more or less thickly with matted masses of olive sea- weeds, short and stunted on the higher sites, and becoming more and more luxuriant as they approach low-water mark, where they wave in tangled tresses at every incoming sea, or hang in streaming shaggy locks as it recedes. The irregu- larities of the surface necessarily produce many hollows of various sizes, which, being covered at high water, remain full as the tide recedes, and, except in very rough weather, when the seals much loaded with earthy particles, hold their contents in the most beau- tifully transparent condition: and the contracted dimensions allowing no room for the action of the wind, no ruffling of the surface is there to mar the glass- like clearness of the water, or to prevent the eye from peering down into every comer and crevice. The constant presence of water in these basins allows many delicate species of sea-weeds to grow freely in them, at a height above low- water mark, where other- wise they would never be found : and hence sheltered tide-pools constantly present specimens of the smaller and more lovely AI(/(b in great perfection. In some of these grow along the sides, just beneath the surface, single fronds of the pretty little Rhodymenia ijalmettay and waving tufts of the finer sorts of Ceramium, with the moss-like Plocamium coccineum, and whole THE DAISY ANEMONE. 25 masses of Chylocladia articulata, that look like the thickets of prickly pear which we see in the tropics, only viewed through a diminishing glass, and turned purplish-red. Laurencia pinnatifida clothes the lower rocks abundantly, where the sea washes up ; and along the margins of some of the ledges, and around the rims of some of the lowest pools, that curious plant Rhodymenia ciliata throws out dense pendent tufts of its deep red fronds, all bristled over with little leaflets in the most singular fashion. THE DAISY ANEMONE. All along this line of limestone rock, in almost every tide-pool and hollow that retains the sea-water, from the size of one's hand upwards, we may at any time find colonies of the lovely Daisy Anemone, Actinia bellis. In the sunshine of a fair day they expand beautifully, and you may see them studding the face of the rock just beneath the surface, from the size of a shilling to that of a crown piece. Nothing seems easier than to secure them, but no sooner do the fingers touch one, than its beautifully circular disk begins to curl and pucker its margin, and to incurve it in the form of a cup ; if further annoyed, the rim of this cup contracts more and more, until it closes, and the animal becomes globose and much diminished, receding all the time from the assault, and retiring into the rock. Presently you dis- cover that you can no longer touch it at all : it is shrunk to the bottom of its hole ; the sharp irregular edges of which project and furnish a stony defence D 26 DIFFICULTIES OF CHISELLING. to the inhabitant. Nothing will do but the chisel, and this is by no means easy of appliance. It is rare that the position of the hole is such as to allow of both arms working with any ease ; the rock is under water, and often, if your chisel is short, it is wholly immersed during the work, when every blow which the hammer strikes upon its head has to fall upon a stratum of water, which splashes forcibly into your eyes and over your clothes ; the rock is very hard, and the chisel makes little impression ; and what is fre- quently the greatest disappointment of all, the powdery debris produced by the bruising of the stone mingles with the water and presently makes it perfectly opaque, as if a quantity of powdered chalk had been mixed with it, so that you cannot see how to direct the blows, you cannot discern whether you have uncovered the Actinia or not, and frequently are obliged to give up the attempt when nearly accomplished, simply because you can neither see hole nor Actinia, and as to feeling in the pap-like mud that your implement has been making, it is out of the question. Supposing how- ever, that you have got on pretty well, that by making a current in the pool with your hand you have washed away the clouded water sufficiently to see the where- abouts, and that you perceive that another well-direc- ted blow or tw^o will split off the side of the cavity, — you have now to take care so to proportion the force that at last you may neither crush the animal with the chisel on the one hand, nor on the other drive it off so suddenly that it shall fall with the fragment to the bottom of the pool out of reach. However, we will suppose you have happily A METAMORPHOSIS. 27 detached and secured your Actinia without injury. But how unlike its former self, when you were desirous of making its closer acquaintance, is it now ! A little hard globose knob of flesh, not so big as a schoolboy's marble, is the creature that just now expanded to the sun's rays a lovely disk of variegated hues, with a diameter greater thau that of a Spanish dollar. It is moreover covered with tenacious white slime, wdiich exudes from it faster than you can clear it away ; and altogether its appearance is any thing but inviting. You throw it into a jar of water, wbich of course ydu have with you when collecting living zoophytes ; and thus bring it home, when you transfer it to a tumbler or other suitable vessel of clear sea-water freshly drawn. And here let us watch its changes; — which, however, will not be effected immediately ; for it will not expand itself in all its original beauty until it has taken a fresh attachment for its base, which will not in all probability be for a day or two at least. The body or stem of Actinia hellis is more or less cylindrical generally ; though subject to some change in this respect, for it is occasionally a little enlarged, as it approaches the disk; the sucking base is slightly larger than the diameter of the body, which in speci- mens ofaninch-and-a-half expanse, may be about half an inch. The length of the body varies much, accord- ing to the depth of the cavity in which the animal lives, for it must expand its disk at the surface. In the open water in a vase, when it appears at home, it may commonly be about an inch from the base to the expansion of the disk, but I have a beautiful specimen before my eye at this moment, which has stretched 28 THE DISK. itself to a height of three inches, expanding at the extremity as usual : the thickness of the stem is in this case somewhat diminished. From the upper part of the cylindrical stem or hody, the disk abruptly spreads around to the width above indicated. In this respect the A. hellis differs so greatly from other littoral species of sea-anemones, that it can never be mistaken by those who have once seen it. In these the disk is merely the termination of a short thick column, occasionally a little expanded over the edge ; in hellis, however, the diameter of the disk is generally four times that of the body, at the point from which it expands. Its form, viewed externally, is that of a shallow cup, but its surface is in general almost flat, or a very little depressed to the centre. The whole bears a likeness closer than usual to a flower, with a footstalk. The disk is so thin and membranous, that it is continually changing its form ; the margin is frequently bent over out- wardly or inwardly in places ; as it lies on the uneven rock, it accommodates itself to the roughnesses, and is hence often irregularly undulated ; it very com- monly bends inward the edge in several places, so as to make puckers or frilled scollopings around the margin. And this surely must be meant by what writers describe and draw as "lobes" to the disk: for of lohes proper it has none ; not the slightest trace ; the outline of the disk is most perfectly and beauti- fully circular ; and I find it often expanded in this state, without any puckering or festooning. (See Plate I, fig. 1.) The tentacles are small but numerous : they are 30 THE COLOURS. exquisitely beautiful ; the diverging but almost pa- rallel fibres, resembling the grain of a beautiful piece of wainscot, and each ending abruptly with a rounded point, where the tentacle springs up from the surface on the opposite side. The colours of this very lovely Actinia I have not found to vary much. The base is white, which as it ascends becomes flesh-coloured, then lilac, passing (at about the point where the disk expands) into a dull greyish purple, more or less tinged with brown. The upper part of the stem, and the w^hole of the outer surface of the disk, are studded with pale spots, which are the extremities of tubular glands, one use of which is to attach by a kind of suction, minute bits of shell, gravel, &c., to the surface, for concealment as is supposed. I have not seen this habit commonly resorted to by this species, but I have witnessed it. (See fig. 2.) The upper surface of the disk is of a rich deep umber-brown, often mottled with grey at the first row of tentacles, and merging into grey, lavender-colour or white, towards the third or fourth row. The tenta- cles are tapered to a point ; they are grooved longitu- dinally on the upper side ; they are commonly dark brown at the base, and yellowish-brown through tne rest of their length, blotched and speckled with white. Those of the inmost row, and frequently some of the others, have one or two broad rings of pure conspi- cuous white near the basal part, and a broad spot of white divided by a brown line lengthwise, on the disk just at their foot. There is some diversity in the proportions of brown and grey, in difierent individuals. I BEAUTIFUL VARIETIES. 31 but the yellowish brown tentacle studded with whitish specks is, I think, characteristic. There is, however, a very marked variety; for though I at first was disposed to consider it distinct, it must, I feel sure, be referred to this species. In a specimen before me from Capstone Hill, Ilfracombe, the disk and tentacles are unrelieved by any trace of white or grey, being of an uniform dark brown, ex- cept that the tentacular ridges that cross the disk are bounded on each side by a fine line of scarlet, scarcely visible except with a lens : its effect is however to give a tint of chocolate to the surface. The out- side of this specimen difi'ers not materially from the common state ; it is, however, of a particularly bright crimson, instead of purplish. (See fig. 3.) That this is a variety of A. hellis is manifest, be- cause I have another on the table from the same locality, which beautifully connects the two states. This is a very handsome specimen ; the disk is deep brown, almost black, with the fine lines of scarlet diverging from the centre as in that just described. The tentacles are some of them brown with one or two specks only of white near the base, and others, mottled in the ordinary manner with dark brown, light brown, grey and white ; what is strange is that these varieties of colour are disposed in groups, a cluster of tentacles of the former hues, and then a batch of the latter. The scarlet runs up around the base of each tentacle, flushing its lower parts in a very elegant style ; and the oral aperture is marked around the very edge with conspicuous white tooth- like lines. This specimen was remarkable for the 32 STRUCTURE OF THE TENTACLES. extent to which it was clothed with coarse gravel, and for the tenacity with which it held fast its strange stony garment, not dropping a fragment even after several days' captivity. In general Actifiice drop their gravel coats soon after they are put into a vessel of clear water. It is for the most part a stationary species, and that not only in its own selected hole in the rock-pool, but even in captivity. It seldom leaves the spot in the glass vessel to which it has once attached itself. I have had a specimen, however, take it into his head to he a traveller, after several weeks' residence in one spot : he walked off in a straight line to a distance of four inches, performing the feat, at a pretty uniform rate, in about eight hours, or half-an-inch per hour. In order to examine the structure of the tentacles I cut off with a fine pair of scissors the tips of one or two, and submitted them to the microscope upon the compressorium. As soon as the pressure began to flatten them, it became apparent that the tentacle was composed of rather thick gelatinous walls surrounding a tubular centre. The latter was filled with a vast mul- titude of very minute granules of a rich sienna-brown hue, and almost quite globular in form ; all being quite alike in shape, colour, and dimensions. These escaped by thousands, on the increase of the pressure, from the tip of the tentacle, where there was evidently a natural orifice forced open by the pressure, but or- dinarily, as I suppose, kept firmly closed by muscular action. The gelatinous walls of the tentacle con- tained, imbedded in their substance, a goodly number, (not so immense as in some other species) of those THREAD-SHOOTING ORGANS. 33 highly curious organs known as the filiferous capsules. They are in this case very minute, being about one twelve hundredth part of an inch in length, almost linear, and slightly curved. The pressure being con- tinued, each of these little organs suddenly shoots forth from one end to a great length, a slender, highly elastic thread, which had hitherto been coiled up spirally within its cavity. The expulsion of this thread is effected by a proper organism, excited by the pressure on the tissues of the tentacle, but not forced out by the compression of the capsule itself, for this is much too minute to be compressed by the glass plates, under any power that can be brought to bear upon them. It is supposed that the adhesive touch of the tentacles resides in these little organs, and that a poisonous fluid accompanies the emission of the thread ; since the mere contact of a tentacle with any small animal appears at once to paralyse it, however lively It may have been but a moment before. If this be so, what a highly curious example is here of the wondrously effective provision which the infinite re- sources of the Divine Wisdom have made for the wants of every creature ! We shall have further occa- sion to speak of these curious organs, and to exhibit them under forms even much more complicated and wonderful than they appear here. PETIT TOR POOLS. The north side of the limestone promontory of Petit Tor, — that side that bounds the little cove where Woodley cuts the great blocks of variegated marble 34 THE THICK- HORNED ANEMONE. which he makes into his well-known tables and chim- ney-pieces,— is not less rugged and worn into caverns and holes than that side which I have just been describing. It is, however, very different in its character and its productions. The erosions have a greater tendency to form deep basins in which the water always lies ; and the lofty rock overhangs much more. Add to this that, the aspect being north, the sun's rays never penetrate to the cavities. For all these reasons they are particularly dark, and therefore favourable for the development of the deeper-growing Alg<2, and many of the zoophytes which are impatient of much light. To get at them you walk along a tolerably level platform of rock beneath the cliff, for some distance, towards the point of the promontory, till you are arrested by a cleft, a little too wide to be leaped, that runs right up to the perpendicular face of the cliff. By means of one or two slight projections you can scramble across here, and then from the opposite side descend into the chasm, where you will find one or two beautiful little deep basins, almost as regular and smooth, especially near the bottom, as if they had been chiselled but of the marble by a sculptor. ACTINIA CRASSICORNIS. In the few holes and angles that are found around the sides of these rock-pools dwell some fine speci- mens of the noblest species of Sea-anemone that I am acquainted with. Actinia crassicornis. They are rather difficult to procure, because of the firmness I DESCRIPTION. 35 with which they adhere to the rock, and the protection which their base receives from the edges of the hol- lows in which they live. One large fellow that I attempted, just below the surface of the pool, con- tracted so forcibly on being touched, that little streams of water as thick as a pin shot out perpen- dicularly from many of the tentacles to the distance of a foot. The species became a favourite with me, for its magnificent beauty ; and I kept in captivity many specimens. A fine variety not uncommon has the body of a dull dark red, with numerous, rather large, grey warts; the tentacles dark purplish red, with pale, almost white, tips. When fully expanded, and quite at home, it imbibes water to such an extent as to become sub- diaphanous. Under these circumstances it is exqui- sitely beautiful. A specimen now before me is about two inches in the diameter of the body, which is not inflated to nearly its full capacity. The ground- colour of the body is pale olive, tinged rather ir- regularly wdth red, becoming darker towards the oral margin. The warts are pale lilac, evidently arranged in perpendicular rows of about fifteen in each row ; the tentacles are large, tumid, and elegantly diaphanous ; their general colour is pale purple or lake-red, the tint disappearing towards the tip, which is whitish brown ; a rather broad ring of white goes round near the middle of each tentacle, which ring is, however, broken on the outer side. Besides this, each tentacle is marked on one side with a large patch of opaque white extending from the base through about half its length. This patch frequently sends 36 A SUSPECTED ALIAS. off a half-ring of white, on the interior side, near its middle. The patch itself is irregular in form and extent, generally losing itself gradually at its up- per extremity ; it is not always on the same side ; frequently two contiguous tentacles have the patch on their two opposing faces. The oral disk is dark vinous red, crossed by some streaks of white, each of which is double, separating to enclose the base of an inner tentacle, and re-uniting. These stripes have a very pleasing effect. I doubt much the specific distinction of A. crassi- cornis and A, coriacea. Dr. Johnston describes the former as best distinguished by the readiness with which the rim of the disk is twisted, by the facility with which it becomes tumid, and by the vesicular furrowed lobes, which are frequently protruded from the mouth. All these characters my specimens have with distinctness ; the last named I shall presently allude to. For one of the others the following instance may suffice. I brought home a fine speci- men of the crimson variety, which I put into a pan of water just sufficient to cover it. In an hour or two it protruded the lips and inflated them so immensely that at first sight I thought the animal had turned bottom upwards, and that I was looking at the broad base. The surface was nearly smooth, flat and cir- cular, about two and a half inches in diameter, occu- pying the whole breadth, so that the tentacles were partly overlaid by it, and appeared only as a thick fringe peeping out from under its edge in a horizontal plane. There was a curious, sharp-edged, narrow groove across the centre of the surface, rather deep, APPLE -LIKE VARIETY. 37 extending from one margin to the opposite, and meet- ing in the central orifice, looking as if it had been cut with a knife. The animal remained in this state all through the evening and night, and in the morning slowly retracted its pouting lips, and resumed its ordinary appearance. On the other hand the same excellent authority affirms that A. crassicornis never endues itself with an extraneous covering, a habit which he notices as dis- tinctive of A. coj'iacea. Now I generally find my specimens, which are abundant on this coast, covered with a coating of gravel, adhering to the warts, which however is soon thrown off" in captivity. Mr. Couch's description too of A. cor. agrees closely with mine. I particularly notice, in the variety I am about to describe, the thickened rim of the body outside the tentacles, which comes to a distinct edge all round, crenated with close-set, yet isolated, small white glandular knobs. I have no doubt that the species is the A. coriacea of Rapp, and the A, gemmacea of Dalyell; but throughout this volume I have taken as my standard of nomenclature the Brit. Zooph. of Dr. Johnston, the second Edition. A more common and still more beautiful variety has the body of a clear green, more or less inclined to olive, and profusely marked with crimson, arranged in longitudinal stripes of irregular form and size, varying from fine undulating lines to very broad bands; the whole presenting an appearance, especially when the tentacles are withdrawn, like that of some apples that are streaked with red. Tlie warts are, as I 38 CHANGES OF FORM. in the former case, clear bluish grey. The tentacles agree with those of the former variety, except that the redness has none of the purple element in it; it is more- over very faint, and is confined to an annular band, ex- tending from the white ring about half-way to the tip. The peristomatous disk is of the same rich red as the body; but the part from which the tentacles spring is pale pellucid glaucous, streaked with red. The streaks are convergent towards the centre, and for the most part embrace a tentacle, uniting both behind and before its base ; which produces a beau- tiful efi'ect. The changes of figure in this species when kept in captivity, are remarkably great and rapid. They are evidently efi'ected by the admission of water into any part or the whole at will, and its ejection, or transmission from one part to another. Sometimes it appears vase- like with a small foot, above which there is a strong constriction, the whole of the body above being greatly tumid and diaphanous ; then the animal will transmit the contained fluid into the foot, and the constriction is made to pass in quick succession all up the body, until it disappears at the margin of the oral disk, imparting the most curious gradations of form. At others it is greatly lengthened perpendicu- larly, being thick withal, cylindrical with an expanded top, or else with the top rounded, and perhaps the tentacles crowded, and just peeping forth. Such then is one of the finest native examples of The zoophyte, That link -which binds Prometheus to his rock. The living fibre to insensate matter. MONTGOMEBT. A LARGE TIDE-POOL. THE PRAWN. Beyond the chasm just described, we scramble into another, and come to a far larger and lower tide-pool, so low as to be separated from the sea only at spring-tides. It is about twenty-five feet long, and eight or ten wide, and is quite over- shadowed by the dark rock, in a sort of cavern of which it lies. The great oar-weeds and tangles ( Laminaria saccharina and digitata) have here room to attain their full size ; and their rich brown fronds wave to and fro, or lie motionless in the clear water often supporting whole forests of tiny zoophytes, such as Laomedea geniculata. All round the edges of the pool, from the water-line downwards, grow in luxuriance the large oval dark red fronds of the dulse ~ {Iridcea ediilis) and the more brilliant and more elegant Delesseria samjuinea, of which an American Poet has said, — "The crimson-leaf of the dulse is seen To blush like a banner bathed in slaughter ;" and other minor sea-weeds, mostly of the red class, are found in fine condition, some in and some out of the water. Large Prawns swim at freedom through this large pool; and a very pleasing sight it is to watch them as they glide gracefully and equally along. The tail- fans are widely dilated, rendering conspicuous the contrasted colours with which they are painted ; the jaws are expanded, the feet hanging loosely beneath. Now one rises to the surface almost perpendicularly ; 40 THE PRAWN. then glides down towards the bottom, sweeping up again in a graceful curve. Now he examines the weeds, then shoots under the dark angles of the rock. As he comes up towards me, I stretch out my hand over the water ; in an instant he shoots backwards a foot or so ; then catching hold of a weed with his feet, and straddling its vertical edge, he remains motionless, gazing up at me witli his large prominent eyes, as if in the utmost astonishment. This Prawn, that comes to our tables decked out and penetrated, as it were, with a delicate, pellucid, rose- colour, beautiful as he is then, is far more beautiful when just netted from the bottom, or from the overhang- ing weed-grown side, of some dark pool. If you happen never to have seen him in this state, let me introduce him to you. Form and dimensions of course you are acquainted with ; these do not change, but I will just observe that it is a " sizeable" fellow that is now before me, whose portrait I am going to take. Stand still, you beauty ! and don't shoot round and round the jar in that retrograde fashion, when I want to jot down your elegant lineaments ! There, now he is quiet! quiet but watchful ! maintaining a sort of armed neu- trality, with extended eyes, antennse stretching per- pendicularly upwards, claws held out divergently with open pincers ready to seize, as if those slender things could do me any harm, and feet and expanded tail prepared in a twinkling to dart backward on the least alarm. Look then at his cephalo- thorax, or what you would perhaps call the head, the cylindrical shield that you would pick ofi' as the first essay towards eating ITS BEAUTY OF COLOUR, 41 him. Its ground colour is a greenish grey, but so translucent that we can hardly assign any hue-proper to it. This is marked with several stripes of rich deep brown, running longitudinally, each stripe being edged with buff. Then the body, or more correctly the abdomen^ is marked with about a dozen stripes of similar colour, but set transversely, girding the seg- ments round with a series of dark lines ; and the last segment before the setting on of the tail-fins has three lines running lengthwise again. Now we come to the tail. But here the pen fails ; only the pencil could convey an adequate idea of this exquisitely painted organ. The four oval plates, that play over each other, and that form a broad and powerful fin when expanded, are bordered with a pale red band: the outer pair have in the centre a red spot, the inner pair a streak of the same hue ; each plate has near its extremity a spot of cream-white (much larger on the outer pair) made more conspicu- ous by being broadly margined by reddish brown. Finally the plates are studded all over with red specks, which when magnified are seen to be stars. Besides these colours, there are scattered over the body in symmetrical order, several spots of opaque cream white, and some of pale chesnut or fawn-brown. And to close this enumeration of colours, the claws and feet are light blue, encircled at regular distances by bands, of which half is deep purple and the other half pale orange. I have not spoken of the fringes of the jaw-plates, nor of those that terminate the tail-fin, but the structure of these is exquisitely fine, especially when examined with a lens. 42 INFLUENCE OF LIGHT To add to these beauties there is seen in certain lights a rich flush of iridescent purple reflected from the whole surface of the animal. A few hours' captivity changes all this, and the Prawn, though it does not appear to have suffered in health or vigour, has put on a most quakerly sobriety of colour, all the fine bands and stripes and spots having become so pale as to be scarcely distinguish- able from the general pellucid olive hue of the body. I cannot tell how this loss of colour is effected 5 but I have reason to think that light, the great agent in 'producing colour in most case's, is the cause. I took two specimens just dipped from a deep poo], and equal in the richness of their contrasted colours ; one of these I placed in a large glass vase of sea-water that stood on my study-table ; the other in a similar vase shut up in a dark closet. In twenty-four hours the one that had been exposed to the light had taken on the pale appearance just alluded to ; the one that had been in darkness had scarcely lost any of the richness of its bands and stripes, though the general olive hue of the body had become darker, and of a brow^ner tint. This individual, however, assumed the appearance of the former, before it had been an hour emancipated from its dark closet. Without attempt- ing to account for the phenomenon, I would just advert to the parallel exhibited by the sea-weeds. The brilliant colours displayed by many of these exist, as is well known, in the greatest perfection, when the plants grow at considerable depths, or in the caves and holes of the rocks, where light can but very dimly penetrate. Some of these will not grow UPON COLOUR. 43 at all in shallow water or in a full light ; and those thatcanhear such circumstances are commonly affected by them in a very marked degree, — marked by the degeneracy of their forms, and by the loss of their brilliancy of colour. The Prawn, as I have already hinted, delights in the obscurity of deep holes and rocky pools ; it is here alone that his fine zebra-like colours are developed. When taken in shallow pools, he is of the plain pale-olive tint of the specimen that had spent four-and-twenty hours on my table. I CHAPTEE III. A Visit to Brixham — ^The Road — Character of the Coast — Berry Castle — Legends — Brixham — Coast Scenery — Animals of the Shore — The Painted Scallop — Its Beauty — Mantle — Tentacles — Gem-like Eyes — Climbing Powers — Leaps — Mode of per- forming these misunderstood — Explanation — Functions and Structure of the Eyes — Structure of the Gills — Ciliary Action — Beauty of the Phenomenon — Oddicombe Rock-pool — Its Form — Contents — The Feather-star — Its Habits in Captivity — Reproduction of its Limbs — Watcombe — Romantic Scenery Sandstone Cliffs — ^The Sea Lemon — The Purple Dye — Mode of applying it — Changes of Colour — Tor Abbey Sands — Shore Animals — The Pholas — Its Siphons — Their Use, Structure and Currents — Curious Contrivance — Anstey's Cove — View from Babbicombe Downs — Skylark's Song — Precipice of Limestone — Abundance of Animals — Pleurobranchus. On a fine morning near the middle of March I walked to Torquay Station, and took my seat on the "box of the omnibus for Brixham. I wanted to see what advantages the place might present for a tempo- rary settlement, what rents were, what sort of a coast it was zoologically, and so forth. The road was plea- sant, or rather would have been, if it had not been so bitterly cold; but the wind had been for many weeks, was then, and was destined to continue, most pertina- ciously at East, and it blew right upon the shore, along which the way lay for a great part of the distance. Long beaches of sand and shingle, the Tor Abbey, the Livermead, and the Paignton Sands, divided by SONGS OF BIRDS. 45 low but perpendicular cliffs of red conglomerate, often underworn and sometimes insular, jutting out in bold headlands, — are characteristic of the shore hereabout, till we arrive at Paignton ; a variety of coast which cannot but be productive to the littoral naturalist, especially as the receding tide lays bare an ample area of low sandstone, hollowed into thousands of tide- pools. My fellow passenger was a legal gentleman from town, revisiting Brixham after an absence of twenty years, intelligent and facetious ; Coacheywas commu- nicative and confidential ; and by and by, as the sun came out, and we turned off into the sheltered road from Paignton onward, under the lee of high hedges, we began to find it not so dreary after all. The songs of birds came from the groves, mellow and cheery, though spring had not yet thought of beginning to deck with leaves their naked bowers. How delightful is the voice of a sinking bird ! how it soothes the mind, and fills it with pleasant emotions ! 'Tis sweet in solitude to hear The earliest music of the year, The Blackbird's loud wild note ; Or, from the wintry thicket drear. The Thrush's stamm'ring throat. In rustic solitude 'tis sweet The earliest flowers of spring to greet, — The violet fi-om its tomb. The strawberry, creeping at our feet, The sorrel's simple bloom. MOXTGOMERT. The ruined castle of Berry, standing about three 46 BRIXHAM. miles on the right hand of the road gave occasion to discuss the legendary history of the Pomeroy family to whom it belonged. In particular, the story of that redoubtable Baron who slew the King's herald sent to arrest him for high treason ; who then gained pos- session of the Monastery on St. Michael's Mount by assuming the disguise of a monk, and who caused himself to be bled to death when unable longer to maintain it against the royal forces. And the romance of his two sons, who rather than yield their castle to be dismantled, leaped on horse-back from the preci- pice on which it was built. The little town of Brixham, pretty as it appears when viewed from Torquay, is but a sordid affair when you see it at hand. The lower town particularly is close, mean, and dirty ; indeed, truth to tell, I saw refinements in filth here, which I had never the fortune to see parallelled in all my wanderings. The place looked, with sonle exceptions, pretty much as one may suppose it to have looked in the days of the Plantagenets or the Stuarts, stationary, when all around is advancing. " Fast place this !" said my fellow traveller of the morning, with an arch leer, as he saw me resume my place on the box to return, after the day's exploration. The scenery on either hand, when once clear of the harbour, is bold and magnificent. The coast is rocky and precipitous, (the town itself appears strangely stuck upon precipices, reaching from top to bottom) and is indented with little coves, the most picturesque imaginable. Berry Head, a noble pro- montory of compact limestone, rears its lofty head ANIMALS OF THE SHORE. 47 abruptly out of the sea not far from the town, and forms a commanding boundary of the prospect, con- spicuous all around. I did not obtain much in the way of natural history on the shore, except what I was already familiar with at Petit Tor. Under the large stones at low water Trochus ziziphinus was numerous, a handsome shell, very regularly conical, and marked with triangular spots of purple on a grey ground. The animal also is handsomely coloured, the foot being pale orange, somewhat like the flesh of a melon, spotted and freckled above with" dark brown. Hun- dreds of tiny crimson warts were projecting from the face of the slimy overarching rock, each of which when touched disappeared, and left to mark the spot only the orifice of a minute hole. This was the siphon of Saxicava rugosa, a little bivalve shell, the animal of which is endowed with the power of boring holes in the hardest limestone. And under the flat stones I obtained two or three small specimens of that beautiful scallop, Pecten opercularis^ which is taken in great abundance with the dredge ofi" this harbour. I came home with little desire to see Brixham again. THE PAINTED SCALLOP. I have before me a small specimen of Pecten oper- cularis, which I have kept for some days in a glass phial of sea-water. The transparency of the vessel enables me to observe it and to w^atch its motions with advantage. An object of unwonted beauty indeed it is. Its ordinary condition is to lie with its valves 48 THE PAINTED SCALLOP. separated to the distance of about one-sixtli of an inch. In this state I will describe it. The open space is occupied by what seems a fleshy cushion, extending from one valve to the other all round, but just within their edge. It is of a delicate flesh-colour, with mottlings of dark brown, making a kind of irregular pattern with transverse bands; a close examination, however, shews that this substance is divided into two parts ; for when the animal is quite at ease, it is seen to gape, with a fissure parallel to the valves, widely enough to give us a peep into the internal structure. This is, in fact, the mantle, of which these two parts are the thick and glandular edges. Around its circumference, on each portion, just where it is in contact with the valve, there are sot a groat number of tentacles, — delicate thread-like organs, tapering to a fine point, and of a pellucid white appearance ; they are capable of being protru- ded and retracted at the will of the animal ; I have occasionally seen some of them extended to a length equal to the diameter of the shell. They are mx)re commonly contracted to about one-fourth of that length, or even much less, with the points curled up ; but frequently the animal protrudes them to their utmost extent, bending them back above the edges of the shell, and waving them slowly in every direction. Sometimes one or two only are protruded, and the others kept short. Along the very edge of each division of the mantle, bordering the fissure, is another row of similar tentacles, smaller in their dimensions. But the most beautiful feature of this animal is yet to be described. In the line of the ITS DIAMOND EYES. 49 larger tentacles, and alternating ■with them, is seen a row of minute circular points, of high refractive power, possessing all the hrilliancy of precious stones. They look indeed like diamonds of the first water, each set in a ring or socket of black substance, which greatly enhances their beauty. They are about half as numerous again as the radiating grooves of the shell; but are not set with perfect regularity. They are still less uniform in size, some having a diameter twice as great as others. These are believed to be eyes, and certainly they are well placed for enabling the animal to watch the world around it. It is very sensitive, withdrawing its ten- tacles and mantle, and bringing the valves of its shell together, on any shock being given to the vessel in which it is kept. I observe, however, that it will not actually close the valves, unless it be repeatedly dis- turbed, or unless the shock be violent; contenting itself with narrowing the opening to the smallest space appreciable ; yet even then the two rows of gem-like eyes are distinctly visible, peering out from the almost closed shell ; the two appearing like one undulating row from the closeness of their contiguity. Those who are familiar with the pincushions, so fre- quently made between the valves of these very Scallop shells, can hardly fail to be struck with the resem- blance borne by the living animal to its homely but useful substitute ; and the beautiful eyes them- selves might be readily mistaken for two rows of diamond-headed pins, carefully and regularly stuck along the two edges of the pincushion. A friend, to whom I showed it when nearly closed, compared I 50 ITS MANNER OF CLIMBING. it not unaptly to a lady's ring set with small brilliants. My attention was attracted to the Pecten by this curious circumstance, that it was adhering by one valve (the flat one) to the side of the glass phial, at some distance from the bottom. On close examina- tion with a lens, I discovered that it was attached by a very delicate byssus. Curious to ascertain how it contrived to mount from the bottom to this position, I touched it slightly, and caused it to loose its hold. In the course of half an hour I found that it had resumed the same position again. I again disturbed it, and began to watch its motions. It was lying with the convex valve downwards on the bottom of the phial. The first thing I observed was the thrusting forth of the deli(!ate little foot, an organ which seemed to me appropriately named, when I marked its close resem- blance in form to a human foot and leg, enveloped in a white stocking. What I may call the sole of this tiny foot w^as pressed against the side of the glass, feeling about from place to place ; while with the lens I could distinctly see, in the part corresponding to the toe, the opening of the fleshy lips, or sides of the grooves, in which the threads of byssus are said to be formed. While it was thus engaged my surprise was excited by seeing it suddenly throw itself with a jerk into an upright position ; but the action was too startling to enable me to see how it was perfonned. I again laid it prone, and though for a moment it closed the valves, it presently opened them again, and performed a similar feat. This w^as followed by seve- ral leaps in different directions, in quick succession ; ITS MANNER OF LEAPING. 51 "but I was still at a loss to know the modus operandi. It appeared to me certain, that the ordinary supposition, viz., that the action is performed by the vigorous opening and shutting of the valves, was not the correct one. At length a favourable obsei"vation gave me a suspicion of the trutli. I perceived the lips of the mantle, (which were held in contact, though the valves were considerably separated,) suddenly open to a partial extent, as if by a hlowimj from ivithin. At this instant there w^as a leap in the opposite direction, attended with a considerable agitation in the water. With this clue, I observed more definitely. Having rendered the water a little turbid, in order the more distinctly to see any motion of the particles suspended in it, several leaps confirmed the notion that had sug- gested itself to me. The mode of proceeding is as follows : when the Pecten is about to leap, it draws in as much water as it can contain within the mantle, while the lips are held firmly in contact. At this instant the united edges of the lips are slightly drawn inward, and this action gives sure w^aming of the com- ing leap. The moment after this is observed, the animal, doubtless by muscular contraction, exerts a strong force upon the contained w^ater, wdiile it relaxes the forced contact of the lips at any point of the cir- cumference, according to its pleasure. The result is, the forcible ejection of a jet of water, /)'cwi that point', which, by the resilience of its impact upon the sur- r{)unding fluid, throw^s the animal in the opposite direction, with a force proportioned to that of they^^^ dean. The action may be well imitated by the human mouth l)l()wing a stream of air from any detemiined 52 ITS CIRCUMSPECTION. point, while the lips are held firmly together at all other points. The resemblance, indeed, of the mantle to the human lips performing such an action, (a resemblance perhaps more close than flattering) struck me as ludicrously faithful. Nor was the appearance less suggestive of a pair of bellows without a nose, of which the valves were the covers, and the mantle the leathers, discharging their contents from any part of their sides. That the Pecten widely opens and forcibly closes its valves, if left uncovered by the water, is doubtless correct ; I have seen my specimen perfonn such an action, and perhaps it might by such means jerk itself from place to place with considerable agility. But I do not think so rude a mode of progression could enable it to select the direction of its leaps, which under water appears to me to be determined with accurate precision. I observed also a fact which appeared confirmatory of the supposition that the brilliant points among the tentacles are organs of vision ; viz., that in the ordi- nary state of expansion, and when about to make these quick movements, the gem-like points are so situated as just to project beyond the margin of the shell. So that when the latter is viewed perpendicularly, the eye of the beholder looking dowTi upon its convexity, the minute points are seen, all round its circumference, just, and but just, peeping from under its edge. It is clear that if they are eyes, tliis secures to them the widest range of vision with the least possible exposure. The death of my little Pecten gave me the opportu- nity of submitting some of the gemmeous specks to STRUCTURE OF ITS GILLS. 53 the iiiicioscope. With a power of 220 diameters, I distinct] y perceived a large lens, a glassy coat invest- ing this, which itself was huried for more than half its volume in an investiture apparently granular of a yellowish hrown coloui', having an ill-defined circle near its anterior side, of a blackish hue. Under pressure with the compressoiium, the lens was mani- festly circular ; the coloured socket discharged dark granules, hiuI from the darkest part a deep crimson pigment, which did not appear to he granular (S'ee Plate III. fig. 5.) I submitted portions of the gills also to the same magnifying power. Eacli of the four laminee consists of a vast number of straight slender transparent fila- ments, evidently tubular, and about y^th of an inch in diameter, arranged side by side ; or rather of one jilament, excessively long, reverted upon itself again and again, at both the free and the at- tached end of the laminae, throughout its whole ex- tent. This repeated filament is armed on each of two opposite sides with a line of vibrating cilia, the two lines mo^•ing in contrary directions ; by the action of which a cuiTfiit of water is made continually to flow up and down each of these delicate filaments ; so that the ])lood which circulates in their interior (for they are doubtless blood-vessels) is continually exposed throughout this its long and tortuous course to the acti(m of oxygen. Like all organic functions, the a(;tion of these cilia is not under the will of the animal. It is said that if during life a small portion of the gills be cut off, the motion of the cilia will convey the fragment swiftly away. 54 ODDICOMBE ROCK-POOL. with a smooth easy motion, through the surrounding fluid, in a definite direction. It does not cease even with the Hfe of the animal. The specimen which I examined had been dead at least fifteen hours, yet when I placed the torn fragments of the branchiae, one after another, beneath the microscope, the energy of the ciliary action, as the wave flowed with uniform regularity up one side and down the other of every filament, filled me with astonishment. Even the next morning, twenty-six hours after death, when the tissues of the filaments were partially dissolved, the ciliary motion Avas still going on, on portions that preserved their integrity. Surely, when a Christian naturalist examines the more recondite anatomy, not of the human body merely, but of any, even the lowest, forms of animal being, he is constrained to say with the Psalmist, " I will praise Thee ; for [all is] fearfully and wonderfully made : marvellous are thy works, and that my soul knoweth right well !" ODDICOMBE EOCK-POOL. I took another look at my pretty little rock-basin at Oddicombe. It is a deep, oval, cup-hke cavity, about a yard wide in the longest diameter, and of the same depth, ]ie\yii out, as it were, from the solid lime- stone, with as clean a surface, as if a stone-mason had been at work there. It is always, of course, full of water, and, except when a heavy sea is rolling in, of brilHant clearness. All round the margin are growing tufts of the common Coralline, forming a whitish ITS CONTENTS. 55 bushy fringe, reaching from the edge to about six inches down : a few plants of the Bladder Fucus are scattered around and above the brim ; and the arching fronds of the Sweet Laminaria, that I before spoke of, hang down nearly to the bottom, closely resembling, except in their deep-brown hue, the hart's tongue fern that so profusely adorns the sides of our green lanes. Below the Coralline level are a few small red sea-weeds, as Rhodymenia palmata ; and the dark purple Chondrus crispiis growing in fine tufts reflecting a rich steel-blue iridescence. But all the lower parts of the sides and the bottom are almost quite free from sea-weeds, with the exception of a small TJloa or two, and a few incrusting patches of the Coralline-base, not yet shot up into branches, but resembhng smooth pink lichens. The smooth surface of the rock in these lower parts is quite clean, so that there is nothing to intercept the sight of the Actinia}, that project from the hollows, and spread out their broad circular disks like flat blossoms adhering to the face of the interior. There are many of these, all of the species A. hellis, and all of the dark chocolate variety, streaked with scarlet ; and they are fine in the ratio of the depth at which they live ; one at the very bottom is fully three inches in diameter. There is something exceedingly charming in such a natural vivarium as this. When I go down on my knees upon the rocky margin, and bring my face nearly close to the water, the whole interior is dis- tinctly visible. The various forms and beautiful tints of the sea-weeds, especially the purple flush of the Chondrus, are well worthy of admiration ; and I can 56 .THE FEATHER- STAR. see the little shrimps and other Crustacea busily swimming from weed to weed, or pursuing their in- stinctive occupations among the fronds and branches, — an ample forest to them. Tiny fishes of the Blenny genus are also hiding under the shadow of the tufts, and occasionally darting out with quivering tail ; and one or two Brittlestars are deliberate! v crawlinsf about, by means of their five long and flexible arms, in a manner that seems a ludicrous caricature of a man climbing up by his hands and feet, — only you must suppose an additional arm growing from the top of his head. The variety of their colours, and the singular but always elegant patterns in which they are arranged, render these little star-fishes attractive. Such a calm clear little well as this, among the rugged rocks, stored with animal and vegetable life, is an object well calculated to attract a poet's fancy. The following description must have been drawn from just such a rock-pool, and most true to nature it is. In hollows of the tide-worn reef, Left at low water glistening in the sun. Pellucid pools, and rocks in miniature, With their small fry of fishes, crusted shells. Rich mosses, tree-like sea-weed, sparkling pebbles. Enchant the eye, and tempt the eager hand. To violate the fairy paradise, Montgomery. THE FEATHER-STAR. At Petit Tor in March I found, adhering to the under side of a rough stone, a fine specimen of the Kosv Feather- star. It was of the size of Prof Forbes' ITS HABITS. 57 figure, but was much more beautiful than I had sup- posed, even from that representation. It was marked all over with alternate bands or patches of crimson and yellow, not very regularly ; the latter colour studded with red dots. The larger dorsal filaments were thirty, the smaller, I think only two or three. The pinnae were forty (not 34) on each side of each arm. I saw the hooked claws of the larger fila- ments, but could not make out the points of the pinnae. In captivity the Feather-star sits upon the frond of a Sea-weed, or on a projecting angle of rock, which it grasps very firmly with its clawed filaments ; so firmly that it is difficult to tear it from its hold. When violence is used, it catches hold of its support or any other object within reach, with the tips of its aims, which it hooks down for the purpose, and with its pinnae, so that it seems furnished with so many claws, the hard stony nature of which is revealed by the creaking, scratching noise they make as they are forced from any hold, as if they were made of glass. I was surprised to observe that several of the arms were unsymmetrically short; and examining these with a lens, saw distinctly that each had been broken ofi" and was renewed; the new part agreeing in struc- ture and colour with the rest, but the joints were much less in diameter; and this difference was strongly marked at the point of union, the first of the new joints being not more than one-third as wide as its predecessor. The appearance much reminded me of a Lizard renewing its tail. In sitting, the Feather- star bends its arms with a 58 AN EXCUSABLE FAULT. sigmoid curve, the tips bending upward. It waves them now and then, hut not much ; and remains long without moving from its hold. Though I repeatedly took it out of water, removing it forcibly, it manifested no tendency to voluntary dislocation. WATCOMBE. One of the most wildly romantic scenes in this neighbourhood is Watcombe, about a mile from Marychurch, on the Teignmouth road. A narrow lane, muddy from a little streamlet that oozes down it, but fringed with primroses and violets, leads off from the highway on the right, and presently opens a magnificent prospect of the sea, with a handsome villa just in front in the midst of ornamental grounds. A step or two farther, and we are on a large area of broken ground, most irregular and uneven, but covered with the fine close turf, peculiar to downs, on which the sheep are tranquilly grazing. On the left, rise abruptly from the turf, perpendicular cliffs of red sand-stone of stupendous height, their summits cloth- ed with turf and thickets of furze ; so angular and uniform are they that they look like the ruined walls of some Cyclopean castle. The place is formed by wdiat geologists call o. fault, the ground having at some period fallen in from the higher to the lower level, a catastrophe which explains the uneven cha- racter of the down, the hills and vales, the chasms and pits, that are so remarkable here. The fault, — which is certainly one that we cannot very harshly blame, since its effect is so beautiful, — THE SEA LEMON, 59 is still at a great elevation above the sea-level ; and when we have made our way to its sea-ward margin, and look down upon the pebbly beach, we find that we can reach it only by a narrow zigzag path, or almost a succession of narrow steps, so steep and hazardous that the utmost circumspection is necessary to descend it with safety. Once down, we can walk along the rough platforms and ledges of sandstone that extend along at the foot of the lofty cliffs towards the north from the cove. The strata form narrow shelves with shaq) edges, sufficiently level to be traversed without difficulty, but gradually rising from the horizontal, so that we cannot pursue any given stratum beyond a short distance, as we find it carrying us too far above the sea, but must successively descend to lower ones. In the crevices and shallow pools of the ledges between tide-marks I observed numerous colonies of Actinia hellis, a variety more than usually pied wdth white on a dark ground : and the fine A, crassicornis was common in the darker fissures. It was here that I saw for the first time the largest of our naked-gilled MoUusca, the Sea Lemon, Doris tuberculata. It was lying in a narrow horizontal shelf under the shadow of a rock, whence it had doubtless fallen after it had been forsaken by the tide. My first momentary impression was that a large limpet had been extracted from its shell and thrown there to die, but an instant's examination told me what it was. I carried it to a shallow pool and threw it in ; and presently it turned itself on its foot, and protruding its two curiously-rib- bed tentacles from their holes, began to glide along 60 THE PURPLE-SHELL. the bottom, expanding, as it proceeded, its beautiful starry flower of branchiae in the centre of its back. When this and the horns are concealed, the animal bears a curious resemblance in size, form, colour and warty surface to the half of a lemon, divided longitudi- dinally. THE PURPLE DYE. These two days past I have been experimenting on the dye of Purpura lapillus. Hundreds of this shell may be seen adhering to the rocks between tide-marks, some quite white, or discoloured only with age, while others, (frequently all found in one particular locality) are rather prettily marked with three broad bands of yellow or brown, running spirally round the whorls. The latter variety is much more furrowed than the white variety, and the bands of colour are often divided into several narrow lines separated by the ridges. The inner part of > the mouth, especially in old specimens, is often tinged with purple, which may help an unini- tiated observer to identify the species. They congre- gate together, and you may easily collect, at low- water, as many as you please. The best way to kill them that I know is to break the shell to pieces with a hammer, moderating the blow cautiously, so as not to crush the soft animal, and then, having shaken off the fragments, throw it into a basin of cold fresh- water, in which the creature presently dies. With the shell unbroken, I find it has the power of resisting the action of fresh-water for a time far longer than would be fatal to many marine Gasteropoda ; for some that APPLICATION OF THE DYE. 61 I placed in a basin of fresh-water, proved to be quite uninjured when I broke the shells eighteen hours afterwards, as was seen by their forcible contraction when divested of their shelly covering. Doubtless this power of resisting the action of fresh-water con- sists in the close-fitting operculum, which is forcibly drawn in under the stimulus, so as to keep the water perfectly out. . When the animals appear dead, examine them for a vessel of yellow or cream-coloured matter, that runs diagonally across the body, behind that projecting veil under which the tentacles retire when contracted. It is sufficiently conspicuous, flat, somewhat wrinkled, as if not quite full, with one margin blackish. Insert into the membrane, which is very tender, the point of a sharp pair of scissors, or a needle, and open the vein, which you will find filled with a substance exactly resembling in colour and consistence the pus or mat- ter formed in a boil. You will not find much ; that of a large Purpura I managed to spread over a space of calico as large as a shilling. From its viscid con- sistence it is difficult to use with a pen, and I do not know how it may be uniformly diluted ; but with a small camel's-hair pencil I have used it with much more facility. As soon as the matter is applied to the linen, its hue is a rich " King's yellow," but becomes in a few minutes a delicate pea-green. In about an hour, if the weather be cloudy, it has become a yellow grass-green, from which it slowly and imperceptibly turns to a blue green, thence to indigo, and thence to blue. A red tinge now becomes apparent, generally in parts, cans- h 62 TOR ABBEY SANDS. ing the hue to become first violet, then a purple more and more tinged with red, till at length, after five or six hours (in a room without direct sun -light) it assumes its final tint, a rather dull purplish crimson, or lake. The direct beams of the sun, however, greatly expedite the process, and at any stage will carry the remaining stages through to completion in a few minutes, TOR ABBEY SANDS. OiF the Tor Abbey sands and headland, the receding tide leaves bare a large surface of rock, chiefly sand- stone and conglomerate. Little shallow pools occur abundantly, filled with AlgcB of various species, among which colonies of Anthea cereus^ of both the grey and the green varieties, are common. The soft sandstone is inhabited by Pholas daciylus,midL Ph. parva; the orifices of whose burrows reveal their secret ; the first stroke of the hammer on the stone causes the animal to contract in alarm, and the result is an instant ejection of a slender jet of clear water from the hole, to the distance of several inches. Under loose stones I found Doris hilamellata nu- merous, four, five and six under one stone, mostly spawning ; one specimen of the blackish-grey variety of B, jpilosa occurred among them. The soft spongy texture of the cloak in this species gives it a character very diff'erent from that of the former. In the same situations also I found several of the pretty little Gibbous Starlet {Asterina gihhosa /) also the young of Trochus ziziphinus, and a lump of rock covered with k SIPHONS OF BIVALVES. 63 living Serpulm, the expansions of whose fans in cap- tivity, and the use of the stoppers, — were highly amusing. PHOLAS DACTYLUS. The respiration of many of the bivalve mollusca is effected by means of a siphon, the two extremities of which are situated close together, and are often united so as at first to appear but one tube. A glance at the very tip, however, even in this case, shews that there are two openings, one of which is a little smaller than the other, and commonly this subordi- nate orifice diverges at a slight angle from the princi- pal one. The latter is the entrance, the former the exit for the water, a perpetual change of which is ab- solutely indispensable to the life of the animal. The interior of these tubes is said to be lined with innu- merable delicate cilia; by the action of which the surrounding water is drawn towards the entering ori- fice, and conveyed in a strong current through the tube over the surface of the gills. Then, having been deprived of its oxygen, it is poured through the other tube and expelled in a jet at its extremity, by a similar machinery. This apparatus of double siphonal tubes is princi- pally developed in those species which burrow, whether in sand, mud, wood or stone. As the bur- rowing bivalve usually, if not always, dwells in the interior of the passage it has excavated, it is needful that there should be a communication with the exter- nal water, and hence a hole is always found extending to the surface of the material bored. The entering 64 SIPHONAL CURRENTS. and departing currents keep this passage clear, a pro- cess which in mud or sand might seem at first not very easy of accomplishment. It is facilitated, how- ever, hy the faculty which the boring bivalves have of lengthening the siphonal tubes at will ; and the degree to which this may be accomplished depends on the depth of the cavity which the species is ac- customed to make. If we take one of the stone-boring Mollusca, a Pholas or a Saxicava for example, from its excava- tion, without injuring the animal, and place it in a glass vessel of sea-water, it will not be difficult to de- tect the currents in question, even with the naked eye ; though a lens of moderate power will render them more distinctly appreciable. The vessel should be so placed as that the light may be nearly, but not exactly, opposite to the eye. By this arrangement the minute atoms of floating matter are illuminated while the back-ground is dark, and these by their motion clearly reveal the currents of the fluid in which they are suspended. A few moments' practice will enable even an unaccustomed eye to perceive the atoms converging from all points around, with an even but increasing velocity, towards the principal tube, down which they disappear like the streams of passengers and traffic in the neighbourhood of a great city, converging towards it as to a common centre of attraction by a hundred different routes. The current of the expelling tube is even still more marked in its character; a forcible jet of water is continuously ejected from this orifice, which draws the surrounding particles into its vortex, and shoots them forward to a A BEAUTIFUL CONTRIVANCE. 65 distance of many inches. It is by the expulsive force of this anal current, chiefly, that the passage is kept free from the deposit of mud and other substances, which would otherwise soon choke it up. A fresh supply of water for respiration, and its dismissal when no longer fit for use, are efficiently provided for by this contrivance, But since many particles of matter float in the water, which from their form or other qualities, might be hurtfal to the delicate tissues of the viscera to be traversed, how is the entrance of these to be guarded against in an in- discriminating current ? A beautiful contrivance is provided for this necessity. The margin of the enter- ing siphon, and sometimes, though more rarely, of the ejecting one, is set round with a number of short tentacular processes, varying indeed in their length, but the longest scarcely more than equalling half the diameter of the mouth of the tube. In Saxicava rugosa, which bores through and through, with small holes, the hardest limestone of our coast, these ten- tacular appendages are found fringing both the tubes. The tentacles in this species are simple, and appear as if cut ofi" transversely; and some are not more than half as long as the others, with which they irre- gularly alternate. The object of this diversity in length, will be manifested presently. In Pholas parva, the processes are few and short, and are confin- ed to the receiving tube, from the interior margin of which they project, towards the centre. But it is in Pholas dactylus, a noble species of large size that excavates the softer rocks on our shores, that this apparatus is developed with peculiar beauty, and its 66 A NET OF TENTACLES. use is made most clearly manifest. The tentacular filaments are in this case also confined to the oral tuhe. They are numerous, each forming a little tree, with pinnate branches, hearing no small resem- blance to the flower of feathery branchise, that ex- pands around the mouth of a Holothuria. These branched tentacula are ordinarily bent down across the mouth of the tube, the longest of them just meeting in the centre ; alternating with these are placed others of similar structure, but inferior size ; and the interspaces are occupied by others smaller still, and simply pinnate ; so that when the whole occupy their ordinary transverse position, the small ones fill up the angles of the larger, and the branches of all form a net- work of exquisite tracery, spread across the orifice, through the interstices or meshes of which the current of entering water freely percolates, while they exclude all except the most minute floating atoms of extraneous matter. The accompanying figure, which I have drawn from a fine specimen of Pholas dactijlas just obtained from the submerged sandstone at Tor Abbey, and at this moment receiving and ejecting its currents in my glass jar, as placidly as if it were still ensconced in its own quiet hole, will give some idea of the form of this tentacular net, a portion only of which is here given, that the ramifi- cation may be seen with greater clearness. (See Plate 11. fig. 7.) (P. S.) After a while, these beautiful organs lost their elegance, and shrank up into thick wart-like bodies, merely digitated at their tips, in which, if I had not personally, so to speak, known the individual PlaitJl j^. m: f(p M Ifii ]-^, PLEUROBRAKCpius PLUMULA. 7 PHOLAS DACTYL US DIVINE BENEFICENCE. 67 animal, I should not have been able to trace any re- semblance to the ramified trees that had at first guarded the orifice. It would appear therefore that they are to be seen in perfection only when the Pholas is in high health, and newly taken from its rock. This contrivance, or rather this series of contri- vances, for the health and comfort of a poor shell-fish that spends its whole life buried in a sepulchre of stone, may seem to some but an insignificant matter. But it strikes my mind with power as an example of the beneficent care of God over all his creatures, and of the infinite resources of Divine wisdom in which creation has been planned and executed. And so far from the meanness of the object on which such care is bestowed rendering it less worthy of remark, that very circumstance ought to enhance our admiration. It seems less difiicult to conceive of the tender bene- ficence of God exercised towards an angel, or towards man who was made in his own image ; but that the Mind of the High and Lofty One that inhabiteth eter- nity should occupy itself about the feelings of such a worm as this, is marvellous indeed ! It is one of those innumerable examples that occur to the Christian philosopher, in which " the invisible things of Him from the creation of the world are clearly seen, being un- derstood by the things that are made, even his eternal power and Godhead." anstey's cove. April Qth. A lovely spring morning ; one of those that make one say with the Royal Poet of Israel, " Lo, 68 SPRING ON THE DOWNS. the winter is past, the rain is over and gone ; the flowers appear on the earth ; the time of the singing of birds is come ; and the voice of the turtle is heard in our land." I took my basket of collecting jare, my hammer and chisel, in my hand, and determined to explore some of the rocky coves that I had not yet visited, for it was spring-tide. It is a favourable cir- cumstance for the littoral naturalist on the Devonshire coast, that lowest water on the days of spring-tide is near the middle of the day. This is a point that should be attended to in selecting a site for such re- searches, as in some places the lowest water might occur at a much less convenient hour of the day. At Margate, at Portsmouth, and at Whitehaven for example, it is about six o'clock in the morning and evening on the days of new and full moon. It was exhilarating to walk over the lofty Babbi- combe Downs, and gaze out upon the wide expanse of sea, its sparkling azure speckled over with ships and boats whose white sails gleamed brilliantly beneath the rays of the mounting sun. There lie the ships, Their sails all loose, their streamers rolling out With sinuous flow and swell, like water-snakes. Curling aloft ; the waves are gay with boats. Pinnace and barge and coracle ; — the sea Swarms like the shore with life. O what a sight Of beauty ! SOUTHEY. There was breeze enough to raise up a curling ripple fringed here and there with a foaming mantle, and to mark with a long line of white the foot of the red cliffs A COAST-PROSPECT. 69 that receded away to the northward. Beautiful these looked in their bold fantastic forms, as they receded, headland after headland, from the palpable grandeur of those close at hand to the hazy indistinctness of those a dozen miles off; the ruddy hue gradually and insensibly changing into the clear decided blue of the distant line of coast. The handsome white villas above Petit Tor and Watcombe reflected the sun, as did presently the houses of Teignmouth, and its con- spicuous church-tower, just opening behind a project- ing cliff; and on the blue shore across the broadly- incurved bay, the terraces of Exmouth were singularly distinct. The little hamlet of Babbicombe was be- hind, and below my feet were the gardens and shrub- beries of several villas, the trees and bushes in which were just beginning to burst their leaf-buds. I did not hear the voice of the turtle, it is true, — it had hardly as yet arrived — but the carol of the lark was blithely pouring forth, " at Heaven's gate," as Shak- speare says, far above even these elevated cliffs. Far up, far up, higher and higher into the radiant dazzling sky he soars, and still he struggles up and up, till the watering eye can with difficulty find the tiny speck, — yet his heart all the while is down in some humble tussock of grass. " Wild is thy lay, and loud, Far in the downy cloud, Love gives it energy, love gave it birth : Where on thy dewy wing. Where art thou journeying ? Thy lay is in heaven, thy love is on earth." Hogg. The very loftiest part of the down terminates in an k 70 anstey's cove. abrupt precipice of compact limestone, which has been quarried away for some distance inland, leaving only the flat base like a stone-cutter's yard a little above the water s edge, to mark where the cliff for- merly reached- Alongside of this base, as at a natural pier, craft of considerable size lie, and receive their cargoes of the quarried marble, and one or more may commonly be seen here. I inquired of a quarry- man if there were any practicable access to this plat- form, but found there was none but a narrow and pre- carious path from the summit, available only to the practised feet of the stone-workers. Nor can they always tread it with impunity ; he mentioned a quarry- man who was lately dashed to pieces by falling from near the summit although he had been nearly fifty years in the occupation. This abrupt head forms one boundary of Anstey's Cove, a favourite resort of Torquay visitors, and a very picturesque scene. A beach of pebbles of snowy whiteness, among which the fossil madrepores for which the vicinity is famed, are often found, is divid- ed by a projecting pile of rocks into two coves, the one of which is overlooked by the stupendous lime- stone precipice, and the other merges into a shore strewn with boulders, beneath a lower cliff of slate and shale. I found the base of the precipitous rocks to the south of this latter cove very productive. Beneath the shadow of the cliffs, animals are much more numerous under the limestone boulders, than they are under similar stones where the sun shines, though only just left uncovered by the tide. Very fine tufts ITS PRODUCTIONS. 71 of Iridcea edulis and of Delesseria sanguinea grow in the shallow hut shaded pools near low water mark. Among the creatures I hrought home were several of the Common Squat Lobster (Galathea rugnsaj and a fine specimen of the much more beautiful Gal. stri- gosa, with its livery of scarlet and azure. Trochus ziziphinus was common ; Cyprcea Europcea, common ; Pecten distort us, several ; Pecten opercularis, small ; A?iomi(B and Serpulce, common on stones ; two or three Botrylli; two of a heemtiiul Pleurobranc/ms ; Dorh tuberculata, D. Johnstoni f^J, and another Doris ; Ophiocoma rosula, abundant, and in much variety ; one had the body velvet-black; — Polynoe cirrata ; Actinia alba, and one or two other small species ; Echinus esc'ule?itus ? ; a rough Sponge ; a small Crab ; and a mass of eggs, probably of a crab. THE PLEUROBRANCHUS. The most interesting of these captures was the pair of Pleurobranchi. The species proved to be P.plumu- la, an animal very rarely seen by naturalists, and a variety more than usually rich in colouring. It therefore appeared to me worth while to make careful drawings and notes from these individuals, which lived for some time with me (See Plate II.) Length when crawling If in. breadth f in. The form oval, convex ; the cloak ample, smooth ; the oral veil, undulate at front margin, the tentacular sides produced into blunt angles, and the centre notched. Dorsal tentacles blunt, curved outwards, projecting a little beyond the veil. Eyes small, black 72 DESCRIPTION OF PLEUROBRANCHUS. round points, beneath the skin, at the outer and upper part of the base of dorsal tentacles. General colour golden or orange chrome ; the veil and foot rather paler; under side of the foot (fig. 2.) approaching to flesh-colour; showing a large black cloud in the centre. The same spot seen dorsally (fig. 1.) makes a cloud of brown, slightly tinged with red in front. In this part, over the internal dark body, are many dots which appear pellucid, and two or three larger than the rest, through which the dark body appears ; the yellow mantle between the dots assumes a reticular appearance. The tentacles, especially the dorsal pair, have a central line of dark brown ; all are tubular, by the bending together of their sides, but open in front and beneath, where the edges do not quite meet. The branchial plume projects from between the mantle and foot in crawling ; it is trans- parent, and appears when viewed from above, to be composed of many triangular laminse set imbricate, and pointing backwards. Each lamina shows trans- verse wrinkles. (See fig. 3.) Viewed laterally it is seen to consist of a central stem, with about 18 pinnae on each side, each pinna being again pinnated on each side (fig. 5.) The stem, pinnae and pinnulae are all dilated, inwardly, so that the stem, which is narrow and slender at (5), is wide at (3), and the pinnae are the triangular laminae, whose wrinkles are in fact the pinnulae. The organ is connected with the bottom of the lateral sulcus for about two-thirds of its length by a sort of membrane. The plume can scarcely be recognized in its two aspects, even though examined again and again in quick succession. It appears very sensitive ITS HABITS. 73 and changes much in appearance by its various degrees of contraction and expansion. Fig. 4 is a por- tion of fig. 3 more carefully drawn, and more enlarged. Of the two specimens found, one was rather paler. In captivity they were sluggish, fond of hiding among the fronds and leaves of Delesseria and Iridaa; but at times gliding freely like a Doris. They swam on the surface by the foot reversed, and then left behind a great wake of clear viscid jelly. They were beauti- ful animals. After keeping them' in health about a fortnight, I put one into fresh water to kill it, for preservation. This, however, was not so readily fatal to it as I had supposed, for at the end of half an hour I found by its contraction when touched, that it was still alive. Probably the mode in which it had contracted on being put in, the foot being narrowed, and the edges of the mantle being incurved on all sides around the foot, may have in some measure prevented the access of the water to the vital parts. At the end of that time I replaced it in sea-water, when it soon partially recovered its activity, relaxing its mantle, and contracting it dorsally so as to expose the sulcus between it and the foot greatly, protruding the tentacles ^nd veil, and the branchial plume. Thus I was enabled to get a much better sight of these parts. As soon as it w^as replaced in the sea-water, a quantity of white mucus was discharged from the whole surface, most copiously from the foot, which as it lay on its back, was uppermost. This mucus, gradually, by the contractions of the animal, was accumulated in a knob at the posterior end of the foot, and then thrown off. The reticulate structure H 74 THE MOUTH. of the mantle-integument was much more distinct than in health ; it was seen to form a delicate lace- work of yellow fibres all over the surface, covering and inclosing a pellucid parenchyma. The animal evidently had been injured by its bath of fresh water ; for it lay on its back, expanding and contracting its various parts, without the power of turning over to crawl, or even of adhering by the foot when turned, but rolling helplessly back. The form and appearance too were very different from those of health, the sulcus being widely exposed by the contraction of the mantle, much like the figure in Prof. Jones' 'Animal Kingdom,' which I should think was taken froi5 a specimen in spirit; it does not much resemble mine in health. Kunning along near the edge of the foot, parallel with it, on the upper surface, is a narrow projecting lip or ledge, more opaque than the surrounding parts, and capable of being slightly raised. Between, this and the oral veil is the mouth, from which in my sick specimen was projected a large pear-shaped or vase-shaped body, of which the narrow part, which was outward, was wrinkled up, and showed at times a small central orifice, triangular in form. The body was pellucid with an opaque central nucleus. The oral veil is thick, and is deeply grooved along each outer edge : the margins of these grooves, being infolded, make the oral tentacles. Fig. 6 repre- sents the outer side of the left dorsal tentacle ; show- ing a sinuosity in the edge of the cleft ; probably acci- dental, since I did not observe it in the other tentacle. After death the form of the shell could very dis- THE SHELL. 75 tinctly be traced in the centre of the back. On making an incision I found it superficially placed within the substance of the mantle, whence it was very readily extracted, having apparently no organic adhesion to the flesh. A careful examination shews a very close agreement with that of PL plumula, which I have no doubt it is. Its length was exactly \ inch, its breadth a little more than \ inch. It lay over the dark brown liver : its own colour was darkish horn, tinged with reddish : as it dried, a silvery nacre covered it in parts, which gradually extended to the whole. There were two radiating depressions on the surface. CHAPTEE IV. The Dead Man's Fingers — Appearance when contracted — when expanded — Beauty of the flower-like Polypes — Structure — Spiculse — The Polypidom — Zoophytes and Crustacea upon Tangle — Small Nudibranchs and their Spawn — The Angled Laomedea — Its medusiform Young — Appearance, Manners and Structure of the Embryo — Escape of one from the Vesicle —Regular Arrangement of the Zoophytes — The Rosy Ane- mone— Its Locality — Description — Habits — Structure— The Snowy-disked Anemone — Peculiarities of its locality — De- scription— The Snake-locked Anemone — Description — Fare- well to South Devon. ALCYONIUM DIGITATUM. At low water, after an unsuccessful hour spent in turning stones, I went to the end of the rocks at Petit Tor, and by leaping over an inlet through which the tide was pouring in and out, reached a mass of rock covered with Fuci and LaminaricB. Here, growing on the side of a deep hole under water, illuminated by light proceeding from the far end of the cavernous passage, I had for the first time the pleasure of seeing Alcyonium digitatum. It was composed of two cy- lindrical lobes rounded at the ends, their form sug- gesting both of the names vulgarly applied to this Zoophyte, of Dead-man's-fingers and Cows' paps, or the more elegant appellation, assigned to it by Sir John Dalyell, of Mermaid's Glove. By lying down and creeping beneath a ledge of rock, and thrusting my THE DEAD MAN S FINGERS. 77 arm down the hole, I succeeded in laying hold of it, and easily detached it from its base without laceration. My basket of bottles being at a distance, I gently put my prize into my coat-pocket, until I could again immerse it in clear sea-water. The lobes were now contracted, about as large as a man's forefinger, of a cream-white hue, of a smooth surface, except that it was covered with slight depressioils of a long-oval form, divided by narrow angular lines. In this state I brought it home, and placed it in a glass vase of clear sea-water. After a few hours how difierent was its aspect I I will endeavour to describe it as it lies now before my eye ; and the more willingly because neither any de- scription that I have met with, nor any figures, give an adequate idea of either its form or its surpassing beauty. I do not mean that its general form and structure are not correctly stated, but that the details of the beautiful flower-like polypes themselves are not given with accuracy. The fingers or lobes are now greatly swollen both in length and thickness, the colour is of a much purer white, and the substance is almost pellucid, especially in those oval, or rather polygonal depressions, which I have mentioned above, and which are the terminating cells of the aqueducts that run through the whole system. They are now, however, depressions no longer ; for from each has protruded a polype, which resembles a flower of exquisite beauty and perfect symmetry. But how shall I describe one of these ? From each of the cells springs a clear white tube, translucent, but not perfectly transparent, 78 THE PETALS. and yet sufficiently so to reveal with perfect distinct- ness the few and simple organs contained in the interior. Its hase is commensurate with the margin of the cell from which it springs ; but it tapers up- ward to the length of nearly half-an-inch, where it dilates into a flower of eight slender and pointed petals, which diverge in a trumpet- form. Each slightly bulges outward at its junction with the tube, so as to give a slightly campanulate outline to the flower ; indeed the resemblance to the blossom of a Campanula is sufficiently striking. Examined with a lens each petal is perceived to be furnished, on each of its two lateral margins, with a row of deli- cately slender pinnae or filaments, which are short at each extremity, but increase in length, in regular gra- dation, towards the middle of the petal. These pinnae do not proceed in the same plane, but arch outwards, so as greatly to increase the elegance of the flower. Submitted to a higher power, the pinnae are seen to be roughened, throughout their whole length, with numerous prickly rings, somewhat like the horns of an antelope. The whole appearance is very diff'erent from the broad petals, notched along each edge, which are commonly represented. * (See Plate III. fig. 1.) * Ellis observed long ago that "each tentaculum or claw had on both sides rows of minute short fibres, like the down on some pappous seeds of vegetables." (Corall. p. 84.) And this appearance he has expressed in the plates of his " Corallines" and of his " Zoophytes." But these figures, notwithstanding Dr. Fleming's verdict on their accuracy, do not represent very precisely what presents itself to my eyes. Sir John Dalyell says, " Each side of the tentaculum is bordered by cylindrical fleshy prongs, whence the pectinate aspect." (Rare Anim. of Sc. ii. 178.) ^ ThhM rsovtst.Jtiu.Uik Trinttd ljlhJhrutnitl.l£ifpointed tail; they are both reticulated, being marked with coarse annular and longitudinal wrinkles : this texture, as well as the colour, is separated abruptly from that of the body. The latter is pure white, of a satiny lustre, smooth to the eye, but examined with a lens seen to be marked with innumerable fine punctures, oblong in form and connected with each other by very delicate transverse lines. The posterior half of the brown tail of this Syrinx was studded with little projections which I at first thought were the viscera forced through pores in the skin, but which I presently discovered, to my surprise, to be a colony of PedicelUncB, (of the species Belgica, I believe) which had chosen this strange Ibcahty to spread their mat upon, surely without asking leave of the tail's owner. The gemmule having once fixed itself, was a tenant for life, and the various wanderings of the Syrinx could not displace its parasitic friend, but only carry it about, while it proceeded to rear its familv. CAPSTONE HILL. 159 CAPSTONE HILL. The favorite promenade of visitors to Ilfracombe is on the side of Capstone Hill. The little town is built in a valley, that runs for awhile parallel to the sea, a range of hills rising like a wall between it and the rocky coast, and thus sheltering it from the fierce cold breezes from the north and north-west, that pre- vail so greatly here, especially in winter. The newer parts of the town are arranged on the landward slope of the valley, forming handsome terraces on its steep side, and commanding those fine views of the sea that are so much admired over the seaward range of hills. In this range there is but one interruption, but one natural way of access to the shore. For the hills, though they present inviting verdant slopes on the valley side, are externally the most abrupt and rugged precipices, being cut down, as it were, perpendicularly from their very summits to the wash of the tide. At one point, however, there is an exception to the con- tinuity, where a little brook, finding its way to the sea, forms a narrow cove. The bounding hill-range, which on the left of the cove attains no great elevation, rises on the right into a large, somewhat conical hill, known as the Cap- stone. It is an enormous mass of shale, in some parts very friable and rotten ; in others more com- pact, with occasional narrow veins of white quartz running through it. The upper and inner portions are covered with turf, and afi'ord pasturage for a few sure-footed sheep that hang and climb with uncon- 160 PRECIPITOUS WALKS. scious security in places where a false step would plunge them headlong. But in other parts, and especially on the side that overlooks the little cove of Wildersmouth, the sides are awfully perpendicular and even projecting, and the broad faces of the grey rock are here particularly majestic and picturesque. With considerable labour, availing itself skilfully of the natural facilities of the rock, a broad road has been scarped round the seaward- side of the hill, extending from the back of Wildersmouth round to the eastern extremity, and sending off branch roads in zigzag directions, by which the lofty summit may be gained. To a new-comer these tracks seem not a little dan- gerous, for though they are guarded by low parapets here and there, they are everywhere so steep, often so slippery, and in some points approach so close to the yawning edge of the perpendicular precipice, that the blood beats with a quickened energy as we ascend, especially if we are accompanied by children. But a few weeks' residence rubs off the edge of this sensi- tiveness, and we wonder after a little while that we could have associated danger with what appears so commonplace a matter. But no frequency of repetition avails to prevent our appreciation of the beauty and interest of this charm- ing promenade. The crowds of persons who frequent it sufficiently proclaim its power to please. On a beautiful summer evening we may see the visitors not only thronging the walks, and filling the comfortable seats that have been let in so numerously into the solid rock, but studding the steep sides from the summit to the water's edge, on ledges, and points, and GLORIES OF SUNSET. 161 slippery projections, wherever there is standing room. And truly this bold headland commands some noble views. To see the sun set on such a calm evening as I have mentioned is very fine : the clouds piled, like mountain upon mountain, about the horizon, all brilliant as he sinks among them, like an oriental monarch into his bed of gold and gems ; and then, having hidden his person fyom our view, proclaiming who is behind by the gilded edges, almost too bright to gaze on, that fringe them ; the broad expanse of blue water just broken into a ripple by the breath of the western breeze, awakened as the sun goes down, and reflecting the glowing radiance of the sky, like a great causeway of light reaching across its bosom from the spectator to the horizon: — this surely is a magnificent sight, behold it where and when we may : and it is seen to unusual advantage from the elevated promenade of Capstone Hill. The spectators linger on the sight, every face turned towards the west; though the glittering splendour has changed to rich hues of crimson and orange, and these in their turn have faded to a ruddy brown hue, that is already leaving the western quarter and creeping round to- wards the north, and will not quite leave the horizon all through the night, until it brightens in the eastern sky with the rays of morning. On a clear sunny day it is very pleasant to wind along the rocky path, resting at intervals on the con- venient seats, or pausing to enjoy the beauties pre- sented by different points of view. As we ascend the western side, we may stand at the parapet and look over the precipice on the beach of Wildersmouth 162 PROSPECTS. below. Perhaps the tide is out, and the long ledges of rock are exposed, alternating with little spots of shingle. The bathing machines are drawn down to the water's edge, and the singularly-attired priestesses of the bath are carrying out little girls in flannel gowns, and duckiog them in the wave. Ladies are speckling the grey rocks with their gay dresses and parasols as they sit in the sun, and merry children are sailing their tiny boats in the pools, or digging up the pebbles with their toy-spades. We proceed, and gradually open the dark, iron- bound coast of North Devon, as far at least as the Bull point, a bluff promontory, black and frowning, that projects far into the sea. Far out upon the horizon appears Lundy Island, like a band of blue ribbon, dark and palpable. As we wend farther round, we descry Worms Head, a distant mountain, the termi- nating point of a long line of coast, stretching away upon the northern horizon. This is the opposite side of the Bristol Channel, and those hills that we can just discern, rising range beyond range, are the mountains of South Wales. But if we turn our eyes to the scene round about, we shall find much to admire. The varying effects of light and shadow on these great breadths of angu- lar rock ; the inclination of their strata, at an angle of 45° to the horizon ; the fissures that run directly across these, some filled with the quartz deposits, others gaping ; the greasy gleam of the shale in some places, the singular light-bay tint in others that makes one think the sun's rays are falling on the spot and are clouded elsewhere, — may all claim a THE SUMMIT. 163 passing notice. Or we may find objects of interest in the plants, that leave not even our rocky cliffs quite barren. In spring, and lingering on even into early summer, sweet and delicate tufts of primroses grow in profusion on the sloping turf, and in the hollows and clefts. The fleshy, glossy leaves of the scurvy-grass, hot and pungent, are seen in many spots, and the tufts of thrift are gay everywhere. The kidney-vetch, varying from light-yellow to cream- white, the bird's-foot lotus, and the bladder-campion, are very abundant ; samphire adorns the precipitous sides with bunches of dark-green succulent leaves, flowering late in the season; curiously- cut leaves of the buckhorn plantain form radiating crowns of foliage over the minor clefts ; and ivy all the year round spreads an ample drapery of graceful foliage over the otherwise bare rock, especially in those aspects where the rays of the sun can seldom reach, and where flowers scarcely love to grow. If we trace our way up one of the winding paths to the very summit, we shall be rewarded by the wide grandeur of the view. At one point a corner of the track comes to the very verge of the cliff, and here a short iron rail is placed as a guard. Few would pass this without a moment's gaze of admiration at the precipice, a hundred and fifty feet in height, and perfectly perpendicular, that is just over against us, or a glance at Wildersmouth far beneath. The wheat-ear twits and flies over the edges of the cliff as we disturb him, and the rock-pipit may be seen perched on some projecting rock ; while at the top numerous agile wagtails are running over the breezy 164 BEAUTIFUL AMPHITHEATRE. down among the sheep that are grazing and bleating there. And here we are at the summit, nearly three hun- dred feet above the level of the sea. A flag-staff has been rigged on this point, and around the knot of rock on which it stands there are seats facing various directions. Seaward the view embraces the coasts already mentioned, but the horizon is of course more distant, and the range of sight more ample. The numbers of craft of all sorts, continually coming and going, add much to the interest of this scene. If we turn and look inland, a prospect equally beautiful, but of very different character demands admiration. From the west round by the south to the east a verdant amphitheatre extends, bounded by hills of various form and elevation, and diversified with woods and cultivated fields. The peaks called the Torrs, the rounded elevated down of Langley Cleve, and a curious, somewhat isolated conical peak known as Carn Top, that always reminds me of Mount Tabor, are the leading eminences to the west and south-west. Then gentle slopes sweep away along the south line, with the town, spread out as in a map, occupying the bottom. To the eastward the noble mountain-mass of Hillsborough, presenting a bluff headland to the sea, nearly five hundred feet in height, and Rillage Point, running out in a long sharp spit behind it, terminate the view ; but between us and the former is the harbour of Ilfracombe, with its shipping and fishing craft, and perhaps a steamer lying at the pier; and Lantern Hill, another almost isolated peak of inferior elevation, crowned by its ancient lighthouse. SEAWARD ROCKS. 165 and facing its opposite neighbour the giant Hills- borough, the joint guardians of the harbour mouth. And thus we have gazed over a semicircle, and are brought round to" the channel again. If now we descend to the principal promenade, and stand on that side which faces the Welsh coast, there stretches down from our feet to the water's edge a rough, irregular slope of rock about fifty feet in perpendicular height, broken into broad shelves and wall-like descents, and cleft with deep narrow chasms, up which the sea shoots and boils with a tremendous uproar. Steps rudely cut in the rock give easy access to the ledges at different elevations, and on fine sunny days these are favourite spots with the ladies, who scramble down and seat themselves with their books or their netting on the little rocky perches by the hour together. When there is a heavy swell in from the north or west, these stations are in more than wonted demand ; for the incoming sea rushing upon the stony barrier, dashing up to a great height in impotent fury, and breaking into a cloud of spray and foam that sprinkles the beholders even far up on the heights, is a sight well worth seeing. WILDERSMOUTH. The little bay that lies between Capstone and the Runnacleaves is scarcely less attractive as a place of resort than the promenade of the former hill by which it is overlooked. A tiny brook, dignified however lob WILDERSMOUTH. with a proper name, the Wilder, discharges itself here after a long brawling course through the upper part of the town, and imparts to the cove itself an appellation, familiar to the ear of every one who has visited Ilfracombe, — Wildersmouth. Before the Tunnels were pierced through the Kunnacleaves, now affording access to the bathing pools at Crewkhorne, this cove was the only bathing place available, — in- deed the only access to the shore. And still it is a favourite lounge, especially when the tide is out. There are great masses of rock, sloping upward from the land-side, but projecting in a sharp angle over the sea, scattered everywhere about the cove, and up these inclined planes visitors climb, ladies as well as gen- tlemen, and sit or lie at length by the hour together, in the pleasant sun, tempered by the breeze of sum- mer. Some may be seen collecting from the rocks the adhering limpets, or the tiny periwinkles of va- rious hues, — white, green, orange, — that lie by scores in the fissures, or gazing with curious eyes on the glossy purple Anemones, that crowd the rocks between tide-marks. And later in the season, the heaps of sea-weeds washed ashore by autumnal gales afford an endless subject of interest to collectors. The sunny cove seems the very abode of mirth and recreation; and yet it has been the scene of dire disaster and heart-breaking sorrow. Some years ago a party of nine ladies went down to the rocks at Wildersmouth, at the part below the Capstone, which is rather secluded by means of the more than usually large masses of rock that rise there. One of the ladies was the aunt of another, the A FATAL DISASTER. 167 latter a little girl, whose parents were in India. The child was to be bathed, but the sea was high, and she did not like it. When she had been dipped twice, she begged that it might suffice, but all protested that she must have her full allowance of three dips. The aunt accordingly plunged her a third time, but at that instant a heavy wave coming in took the child out of the grasp of her relative, and bore her back beyond reach. The tide was setting down, and the party had the agony of seeing their little companion carried rapidly away across the mouth of the cove towards the Tunnel rocks. A young man, a relative, I believe, of one of the ladies, instantly stripped and swam after the child, who still floated. He succeeded in catching her, but so fast had the tide swept her down, that he had to land on the Tunnel side of the cove, and then to climb the precipitous cliffs with his helpless burden in one arm. She was found, however, to be quite dead, and no appliances could restore her. The aunt was like a maniac ; crying and tear- ing her hair in distraction. They put her into one of the bathing machines until the first paroxysm of her grief had exhausted itself; but she never reco- vered the shock. She used long afterwards to come down to the fatal spot, and gaze out upon the sea in hopeless and speechless melancholy, a melancholy that never left her. To complete the sad story, the parents of the child, who had not heard of the event, were returning from India shortly after, when the ship was wrecked, and they too were both drowned. 168 THE GEMMACEOUS ANEMONE. THE GEMMACEOUS ANEMONE. The most obvious character of this fine species lies in its large and numerous warts. These are not con- tractile, or otherwise changeable in appearance, and therefore are always appreciable. They are well- defined, protuberant, round or oval, of considerable size on the upper part, but diminish regularly towards the base : they are arranged in about 30 longitudinal series, which of course diverge from the centre w^hen the animal is contracted ; between some of the principal series there are other smaller rows, not included in the above number. Each principal series contains about twenty-two warts. Six of the rows are white, and these are disposed symmetrically, so as to form a white star on the summit. Between every two white rows, are from three to five rows of an ashy grey, with dark grey centres. The ground colour is delicate rose-pink or carnation at the base, gradually merging into a reddish-grey between the thickly-set warts. The re- semblance which the Actinia, in this condition, with its radiating lines of warts, bears to the common Sea Urchin denuded of its spines, is singularly close and striking. (Plate YIII. fig. 1.) The tentacles are about fifty in number, arranged in three or four imperfect circles. They increase in size from without, the innermost range being largest: they are conical, obtusely pointed, and more or less bent in a sigmoid curve, like the branches of a can- delabrum. Their colour is a pellucid olive on the exterior side, unspotted, but marked across the inner side with about eight transverse oval bands of white. Plal^ YIII UA^jnunxU^ i .la< ]p ge:,:'.l^£:a 6-:c, .■ or. . _ ..a : a: la: : JMRRIUFCPMS ::-i3 AC-^^iJvI/ CAIiD'JA. THE SEA-SPIDER. 171 produced ; some of them twice. One young at a time seems the rule, though I should not have expected so limited a birth : it is extruded from the mouth of the parent (as I conjecture, for I have not witnessed the parturition) and dropping on the bottom, attaches it- self close by her side, or not far off, and maintains its position pretty pertinaciously, expanding its star-like disk for prey, and greedily seizing and devouring it when offered ; even though it should be so large as to swell the body up to twice its former dimensions. The tentacles on beiug subjected to pressure display a great number of filiferous capsules (Fig. 5) which are thrown off in multitudes with the mucus pressed off. They are very minute, almost Unear. about jg^th inch in length. The extruded thread reaches to about ^th inch : no barbs were discernible on it. SEA-SPIDER. A singular marine spider fPhoxichilusJ looking like a skeleton, throws about its long legs, and crawls slowly over the parasitic Crisim &c. from the roots of LamitiaricB. A small one found to day carried under it four globose masses of eggs, altogether much wider than its body. They were difficult to detach, being firmly held by the first pair of feet, which are slenderer than the rest and bent under : the e^^ masses were of a flesh-colour, and under the microscope were full of minute perfectly globular opaque ova. BLACK SAND-WORM. May 22nd. — I again visited Watermouth and 172 THE BLACK SAND-WORM. Smallmouth. The Primrose still lingers in the lane leading up from Hele, hut is almost replaced by the greater Stitchwort, and the red Campion ; the pretty Milkwort is sprawling profusely over the hanks, with its heads of delicate pink blossoms ; the ramping Fumi- tory, with flowers more than usually rich in colour, occurs, and even the spikes of the common Bugle are attractive to the eye, though the plant is somewhat coarse on examination. In the httle grove above Wateimouth, the wild Hyacinth is still profuse, and the purple Orchis is abundant, and many of its spikes particularly fine, both in the size and number of their constituent blossoms. In a pond, the Water- crowfoot was filling the margins with its many-spht leaves, and its unpretending little white flowers. At the shore I found under a stone a species of A7'enicola, an uncouth creature, of a deep black hue, or rather what a tailor would call "invisible green." It is about six inches long, and J inch in greatest thickness, which is nearest the head, but not abruptly. The whole is divided into 28 segments, each consisting of 6 annuK, of which the foremost on each segment is stouter, and preceded by a deeper incision than the rest. The 16 posterior segments are furnished with branchial tufts, and pen- cils of bristles; the former are two on each large annulus, on the dorsal aspect ; they are protrusile, and consist of a great number of short filaments, incurved, which have the. power of independent motion. When I first examined it, these little filaments were freely pushed out and retracted, and moved with a sort of grasping action; but after a day or two they were still. They were largest near the tail, gradually dimin- ITS YELLOW DYE. 17:3 ishing to the middle of the body. On the outer side of each tuft is a small tentacle, or rather a fleshy tubular sheath, from which issues at will a flat pencil of fine bristles, arranged transversely to the line of the animal : they point upwards and sHghtly outwards. Tlie bristles are very fine and gradually tapering to a point ; they are plain, except near the tip, where they are clothed with the most delicate barbules, which however are closely appressed. These pencils of bris- tles do not cease with the branchial tufts, but are continued on every great annulus to the head. The mouth is constantly being everted and retracted ; in the former process a trumpet-shaped mouth is unfold- ed, the edges and interior of which are set with dense papillae ; sometimes, especially after a day's captivity, this mouth is evolved to a still greater extent, so as to project the interior itself in a convex or almost globu- lar form, which assumes a pellucid appearance, and a pale-brown hue. The rings of the body are occasion- ally adorned with a blue iridescence ; they are longitu- dinally wrinkled, and hence there is a sort of reticulation on the animal. When I first touched it, it discharged (I think from the tufts) a yellow fluid, which strongly stained my fingers : and on being kept in a saucer of clean sea- water, I found the latter in 24 hours tinged with olive ; as was the water, with which I replaced it, the following day. I subsequently found another specimen of this animal in similar circumstances. The colouring fluid was poured out in this case much more profusely. I stained some writing paper with it ; the tint was at first a full greenish-yellow, but after a day or two it 174 A CRAB AT HOME. changed to a purplish- brown, quite permanent, neither alterable with water nor with time. The specimens came near to Arenicola hranchialis of Aud. et M. Edw., but did not quite agree with the characters given to the species by those zoologists. A CRAB AT HOME. At the water's edge at the outer base of the Cap- stone at low water, spring-tide, I was looking about for Actinias, when peering into a hole I saw a fine Crab, not of the very largest, but still of very nice table dimensions. I poked in my arm and took hold of him, and though he made vigorous efibrts to hold fast the angles and notches of his cave with his sharp toes, I pulled him out and carried him home. I I noticed that there came out with him the claw of a crab of similar size, but quite soft, which, 1 supposed, might have been either carried in there by my gentle- man to eat, or accidentally washed in. After I had got him out, for it was a male, I looked in and saw another at the bottom of the hole, which appeared to me considerably smaller. I debated whether I should essay this one also, but reflected that I could only eat one at a supper, and that moderation in luxuries is becoming ; " So," said I, " friend Crab, stay there till next time ; I may find you here again on some other auspicious morning." When I arrived at home, how- ever, I discovered that I had left my pocket-knife at the mouth of the crab-hole ; a fine strong-bladed implement, that had already stood me in good stead on several occasions, cutting holes for my footsteps A SOFT CRAB. 175 in the soft rock in climbing up the precipice, when embayed by the tide, and so forth. I felt loth to part with my old knife, and therefore at once put on my hat, running hard for fear the tide, which had already turned, might be too high. I got to the place, however, just in time, found my knife, and then took another peep at the Crab. It had not moved, and thinking that if I could not eat it myself I might ask my neighbour's acceptance of it, I drew it out with my fingers, as I had done with the former. But lo ! it was a soft Crab; the shell being of the consistency of wet parchment, and the colours (all except those of the carapace) being pale. It was a female too, without any sign of spawn, and had lost one claw ; strange ! that I had not thought of connecting the soft claw that I had drawn out before, with this Crab that I saw at the bottom. But I carefully put the helpless creature into the hole again, and saw that it settled its legs and body comfortably in its old quarters ; and there I left it : for our Crab is worthless for the table in this condition, unlike the Land Crabs of the West Indies, which are esteemed peculiarly delicate in their soft state. What then are we to infer from this association ? Do the common Crabs live in pairs ? and does one keep guard at the mouth of their cavern, while its consort is undergoing its change of skin ? If this is the case, it is a pretty trait of cancrine character, and one not unworthy of their acute instinct and sagacity in other respects. The male displayed no appearance of the moult, its coat being of a shelly hardness. I have no doubt that the claw of its mate 176 A WALK TO LEE. was unintentionally torn off, in its efforts to grasp some hold when resisting my tugs in dragging him out. LEE. A three miles' walk to the westward brings the pedestrian to a romantic little spot called Lee. The road lies over the downs, along the margins of those very precipitous cliffs that so characterize the coast hereabout. It does not present any unusual features, to be sure, in a country where grandeur and variety of scenery are the rule, but even if these were wanting, green lanes and downs, hedges covered with flowers, the glittering insects and the singing birds, the surge of the sea far below, the sun, and the breeze, would make any walk enjoyable at this season. Hither then, basket in hand, I strolled, to discover what the shore might afford me of the minuter works of God, which are so eminently worthy of being studied, so eminently calculated to afford the contemplative mind food for wonder, delight, and meditation, though nine hundred and ninety-nine out of every thousand of mankind never bestow a thought upon them, and even the great bulk of those who seek recreation by the sea side, tread them beneath their feet in the most abso- lute unconsciousness of their very existence. Lee is the opening of a beautiful valley, which bends to the right as you look at it from the sea. The bottom is chiefly occupied by meadows, to whose carpeted surface the late rains had imparted the most brilliant verdure. The hedge-rows are profusely CHARACTER OF THE SCENERY. 177 planted with elms and other trees, which, whatever may he thought of their utility in husbandry, do certainly improve the landscape wonderfully, affording the finest contrasts between their dark masses of foliage, and the tender green of the fields, as bright as an emerald in the sunlight, seen in peeps between them. A few farms and villas, embowered in orchards and gardens, constitute the hamlet of Lee, and being scattered over the bottom and along the slopes are very picturesque. The valley rises a little inward, and is presently lost to view by bending round to the right, where it is shut in by the steep rounded hill that forms that side. The whole of this hill, from its base to its lofty summit, is covered with wood, while the hill on the opposite side, equally lofty and equally steep, is an open down, varied only by a few scattered clumps of furze. A Uttle stream turns the huge wheel of a mill at high-water mark ; then spreads itself over the sand and shingle in broad shallow sheets rather than channels, till it finds the receded tide. The character of the rocks is rather peculiar : around on either side of the cove there are the same sharp rugged upslanting ridges and pinnacles as elsewhere, and some pretty little deep nooks are formed in the high rocks on the western side, enclosing sloping beaches of sand, entirely dry at low water but covered by the flood-tide. The whole lower part of the cove itself, however, that is, all between tide-marks, consists of the usual rocks, grey friable slate, cut off as it were to one level, about three or four feet above the shingle, and these intersected by a thousand irregular channels, and now and then interrupted by broad areas of sand 178 STONE-TURNING. and gravel. At the extreme of low water (it was spring-tide), the points where these channels, (the drainage of the sea-water from the weed-covered rocks, mingled with the stream from the land) debouched into the sea, were strewn with loose stones and boulders of various sizes, partly embedded in the deposit of mud which this formation so copiously supplies ; for the ease with which the substance of this grey slate is abraded by the action of the waves covers the bottom with a fine whitish slimy mud, very unpleasant to the feel, and ever ready to be stirred up when a little sea is on. The water here therefore scarcely ever has the brilliant clearness which characterizes it among the limestones and sandstones of South Devon. Stones found in such circumstances afford a good hunting ground for the naturalist; fishes, Crustacea, annelides, and star-fishes in particular haunt under their shelter, and an hour's turning wdll, unless his fortune be unusually inauspicious, yield him material for days study. Beneath one of these stones I found a specimen of our smallest native Pipe-fish, w^hich Mr. Yarrell has described under the name of the Worm Pipe-fish (Syngnathus lumbriciformisj. It is a much more beautiful little creature than you might suppose from either the figure or the description of that eminent zoologist, who probably has had no opportunity of seeing its living grace and elegance. Mr. Yarrell simply says that its " colour is dark olive green" ; this however very imperfectly expresses its various tints, a want which I will endeavour to supply with the httle beauty before my eyes ; premising that THE WORM PIPE-FISH. 179 it is not very easy to describe in detail an agile creature that is every moment gliding in and out among the sea-weeds in its vase. (See Plate VIII. Figs. 6 and 7.) The general hue of the body is a warm yellow olive, becoming silvery grey on the under part of the lengthened tail, from the vent backward. The sides of the head and neck are profusely marbled wdth conspicuous spots of pure white, of varying form and size, the effect of which is heightened by each being surrounded by a border of black ; on each side of the crown also there passes off from behind the eye to the occiput, an interrupted streak of white, bordered below with black. A flush of red purple suffuses the middle of the operculum, covering without concealing the spots and clouds of that part. Between the gills and the vent there are numerous rows of white dots, arranged perpendicularly on each side of the body at regular intervals ; these doubtless mark the plates of the mailed covering, a row to a plate, but whether they are placed in the middle or at either edge of the plate, I cannot say, for all my efforts will not avail to make out the limits of the plates in the living fish ; the contour of the body is perfectly smooth and flow- ing, not cylindrical, but compressed and forming an edge on the back and on the belly. Scattered specks of white lie between the perpendicular rows. Behind the vent the body is perceptibly constricted between the plates, and this alternate swelling and constriction extends to within half an inch of the extremity of the tail ; the remainder being abruptly attenuated and smooth. Each of the plates on the tail is marked at each edge of the under side, by a roundish well- 180 ^ MOVEMENTS OF ITS EYES. defined white spot, succeeded by one of black ; and the whole of this part, which glistens with a lustre like that of tin -foil, is sprinkled with numerous irregular white and black spots. The eye is very beautiful ; it is particularly large, full, and glassy ; the pupil is encircled by a fine ring of golden red, and the iris is marked with alternate divergent bands of grey and brown. The fin-rays are simple, and, with the mem- brane, which is very subtle, are studded with very minute olive specks, except in diagonal spots and bands of clear space. The muzzle is abruptly narrowed immediately before the eyes (looking at it vertically), and widens a httle towards the tip : the mouth opens, as in other Pipe- fishes, perpendicularly. The nostrils form minute projecting warts. The line of the belly is gently curved to the vent, from wliich point the body is much more slender, both laterally and ventrally. The tail is compressed, and terminates in a flattened point. I observed a curious bladder-like tumour, under the throat, just behind the gill-covers, but whether it is normal or accidental I cannot say. In captivity the manners of this pretty little fish are amusing'and engaging. Its beautiful eyes move independently of each other, which gives a most curious effect as you watch its little face through a lens ; one eye being directed towards your face, with a quick glance of apparent intelligence, while the other is either at rest, or thrown hither and thither at various other objects. I was strongly reminded of that strange reptile, the Chameleon. Another point of resemblance to that animal our ITS INTELLIGENCE. 181 little Pipe-fish presents in the prehensile character of its tail. It curves just the tip of this organ laterally- round the stem or frond of some sea-weed, and holds on by this half-inch or so, while the rest of its body roves to and fro, elevating and depressing the head and foreparts, and throwing the body into the most graceful curves. The immediateness, with which the prehensile action followed contact of the part with any object, reminded me of what I have observed in the tails of the American Monkeys, in which the slightest and most accidental touch of the tail-tip instantly excites the grasping action. Perhaps it is in a measure involuntary. Al] the motions of the Pipe-fish manifest much intelligence. It is a timid little thing, retiring from the side of the glass at which it had been lying, when one approaches, and hiding under the shadow of the sea-weeds, which I have put in both to afi'ord it shel ter, and also to supply food in the numerous animal- cules that inhabit these marine plants. Then it cautiously glides among their bushy fronds, and from under their shelter peeps with its brilliant eyes at the intruder, as if wondering what he can be, drawing back gently on any alarming motion. It was only by taking my opportunity, presenting my pocket lens, and approaching my face to the side of the glass very slowly and cautiously, that I could examine it suffi- ciently for the purposes of delineation and de- scription. In swimming it is constantly throwing its body into elegant contortions and undulations: often it hangs nearly perpendicular, with the tail near the sur- R 182 ITS MANNERS. face, and the head near the bottom of the glass, only bent upwards with a sudden curve : now and then it butts against the side of the vessel, or even against the bottom, with reiterated blows of its nose as if it could not make out why it should not go forward where it can see no impediment. Now it twists about as if it would tie its body into a love-knot ; then hangs motionless in some one of the " lines of beau- ty " in which it has accidentally paused ; its air- bladder conspicuous as a pellucid oblong spot about halfway between the nose and the vent, as you look at its body between your eye and the light ; and then if you apply your lens carefully you will see the constant action of the gill-covers, and the periodical currents of water shot forth behind in two forcible jets, from a minute orifice on each side, just above the operculum edge. The little fin that rides on the middle of the back, so filmy as to be scarcely noticeable while un- moved, is constantly, while the fish is swimming, and at frequent intervals while it is at rest, fluttered with a rapid vibration, like that of the gauzy wing of an insect. This is a very charming action. My specimen is about five inches long, which is the size given by Mr. Yarrell as that of adult age ; but I do not see any trace of ova, or of the pouch proper to the male ; it is probable it is a female. It does not appear to be nocturnal in its activity : it ordinarily lies quiet, if undisturbed, and concealed among the more bushy of the sea-weeds, for the gieatest portion of its time, but usually comes forth once or twice in the day for a half-hour's play, when it swims about in contortions in the manner I have ITS DISEASE. 188 described. I think I have observed that the afternoon is a favourite season for these exercises ; not, how- ever, that it adheres with any regularity to time. June 2Srd. — I have had my little Pipe-fish now nearly three weeks. The terminal portion of the tail, that I mentioned above as abruptly attenuated, flat- tened, and smooth, has grown considerably : it was at first not quite half-an-inch in length, it is now nearly an inch : the appearance is exactly like that of a renewed tail, like that of a Lizard for instance. But there is another change in my little captive, that is less pleasing. The bladder-like tumour beneath the throat has increased, and spread, so that above, on the sides, and below, all about the body, the fish is nearly covered with large patches of bladders, many of them contiguous to each other, evidently filled with water or air. It is probably air ; for the efi'ect is to float the fish on the surface ; and it is only by muscular energy in swimming that it can get dow^n again when once at the top ; and when among the w^eeds it is fain to take hold with its prehensile tail to keep itself there. It is evidently a disease ; analogous, one might say, considering the difl'erence of the elements in which we respectively live, to the dropsy among ourselves. I endeavoured to tap some of the largest bladders with a needle, and fancied it felt some relief; but I was afraid to attempt much at this kind of chirurgery, lest I might be found guilty by a jury of fishes of the crime of fish-slaughter. What little I did, however, seemed to do good, for the next day many of the bladders had disappeared, but only to return in greater numbers and size than ever. The 184 ITS DEATH. poor little fish now could only float at the surface ; and as that could not last long, I resolved to attempt a more extensive puncturing. I accordingly took it into my fingers, and pierced the bladders here and there in various parts of the body, and then returned it to the water. At first I was afraid I had killed it by keeping it out of water, though only for so brief a period as a few minutes (certainly not more than two or three); for it floated belly uppermost, and appeared much exhausted, but gradually recovered. Though it did not appear immediately that the bladders com- municated with each other, yet they certainly did, for the next day they had greatly diminished, and in a few days they had entirely disappeared ; the skin had healed and become smooth and healthy, and the little creature was able to enjoy itself again. July ^^th. — I found my pet dead, on my return after a week's absence from home ; it had apparently been dead about three or four days ; so that it has lived in captivity rather more than four weeks. The difficulty of delineating with accuracy objects that can be defined only with microscopic powers would hardly be imagined by those who have never attempted it. In the case of this little fish, every glance at its form or colours, in order to transmit them to the paper, was taken through a triple pocket- lens, which had to be exchanged for the pencil at each stroke. The focus of this glass was about half an inch, but the fish was swimming freely in a large glass vase five inches wide ; so that it was only when it spontaneously approached close to the side of the transparent vessel, that I could get a sight. It was. MICROSCOPICAL DRAWING. lf^5 of course, of no use to try to ^pw^f/^ it to the required spot; the atterapt only alarmed the little creature, and made it dart hither and thither ; I could only wait patiently its wayward will. When it came, perhaps it would be with the wrong side presented towards me, or the part w^hich I wanted would be turned to one side, or in some way altered from its former position. And very often indeed, just as I had got my glass to the focus, and my eye to the glass, after wait- ing perhaps for a quarter of an hour, — before I could get a glance w^ith sufficient distinctness to impress an image on my eye for delineation, the fish would dart over to the other side, and leave me to exercise patience for another quarter. This is the perpetual experience of those who draw living animals with the microscope. The camera lucida is an admirable aid for motionless forms, but it is powerless for such as are agile and fitful. Nor is the case of those minute creatures that are viewed through the compound microscope at all better than that of my Pipe-fish watched through a lens held in the fingers. In order to see it to advantage, you must allow your Zoophyte or Annelide space sufficient to expand or move in ; w^hen, if it be a lively species, probably, just as you have got it steady enough to delineate the first two or three lines, away it suddenly starts, its position is quite changed, the relation of its parts to your eye is altered, or perhaps it shoots clean ofi", out of the field of vision. CHAPTER VIII. Rock-pools — Their Abundance — Southey's Description — Its truth to Nature — ^Their Loveliness — Chondrus — Its brilliant Reflec- tions— The branching Coryne — A Parasite — A Beautiful Sea- weed — Structure of the Zoophyte — Origin of its name — Tentacles — Their Structure— Egg Capsules — Escape of the Eggs — The Bird's-head Coralline — Elegant Shape of the Poly- pidom -Advantage of studying living Animals — The Cell — The Polype — Its Organization — Muscles — Economy in God's works — A Populous Stone — Enumeration of its Tenants — Reflections — God's Purpose in Creation — The hopefid Future — The Sessile Coryne — ^The Belgian Pedicellina — Its Form and Structure — Production of its Young — Its Habits — Its Affinities — The Slender Pedicellina — Its singular Bulb. EOCK-POOLS. What a delight it is to scramble among the rough rocks that gird this stern iron-bound coast, and peer into one after another of the thousand tide-pools that lie in their cavities ! They are particularly abundant here ; and indeed it is to the peculiar character of the rocks, their rugged unevenness, depending upon their laminated structure, and the inclination of their strata, that we are indebted for the pools, which make the coast so rich and tempting a hunting ground to the naturalist. I do not wonder that when Southey had an opportunity of seeing some of these beautiful quiet ROCK-POOLS. 187 basins hollowed in the living rock, and stocked with elegant plants and animals, having all the charm of novelty to his eye, — they should have moved his poetic fancy, and found more than one place in the gorgeous imagery of his oriental romances. Just listen to him. It was a garden still beyond all price. Even yet it was a place of Paradise ; ******* And here were coral-bowers. And grots of madrepores, And banks of sponge, as soft and fair to eye As e'er was mossy bed Whereon the wood-nymphs lie With languid limbs in summer's sultry hours. Here too were living flowers. Which like a bud compacted. Their purple cups contracted. And now, in open blossom spread, Stretch'd like green anthers many a seeking head. And arborets of jointed stone were there. And plants of fibres fine as silkworm's thread ; Yea, beautiful as mermaid's golden hair Upon the waves dispread. Others that, like the broad banana growing, Rais'd their long wrinkled leaves of purple hue. Like streamers wide outflowing. (kehama, XVI. 5.) A hundred times might you fancy you saw the type, the very original of this description, tracing line by line, and image by image, the details of the picture; and acknowledging, as you proceed, the minute truthfulness with which it has been drawn. For such is the loveliness of nature in these secluded reservoirs, that the accomplished poet, when depicting the gorgeous scenes of eastern mythology, scenes the 188 * BEAUTY OF SEA-WEEDS. wildest and most extravagant that imagination could paint, drew not upon the resources of his prolific fancy for imagery here, but was well content to jot down the simple lineaments of nature, as he saw her in plain homely England. It is a beautiful and fascinating sight for those who have never seen it before, to see the little shrubberies of pink coralline, — the "arborets of jointed stone," — that fringe these pretty pools. It is a charming sight to see the crimson banana-like leaves of the Deles- seria waving in their darkest corners; and the purple fibrous tufts of Polysiphonia and Ceramia, ^^fine as silkworm's thread." But there are many others which give variety and impart beauty to these tide-pools. The broad leaves of the Ulva, finer than the finest cambric, and of the brightest emerald-green, adorn the hollows at the highest level ; while at the lov/est wave tiny forests of the feathery Ptilota and Dasya^ and large leaves, cut into fringes and furbelows, of rosy Rhodymenice. All these are lovely to behold, but I think I admire as much as any of them, one of the com- monest of our marine plants, Chondrus crispus. It occurs in the greatest profusion on this coast, in every pool between tide-marks ; and every-where, — except in those of the highest level, where constant exposure to light dwarfs the plant, and turns it of a dull umber-brown tint, — it is elegant in form and brilliant in colour. The expanding fan-shaped fronds, cut into segments, cut, and cut again, make fine bushy tufts in a deep pool, and every segment of every frond reflects a flush of the most lustrous azure, like that of a tempered sword-blade. Professor THE PTILOTA. 189 Harvey, than whom no higher authority can be cited on the subject of marine botany, says that this species "has been observed to be occasionally iridescent." But he has surely not seen it around Ilfracombe ; for, with the exception of the stunted fronds that grow near high-water, I have never seen it otherwise, and I have seen roods upon roods of the plant. This iridescence is common to it also around Torquay ; it is not lost nor even diminished when the plant is kept in an aquarium, for I have specimens that have been growing for many weeks in my pans and glass vases, and which are as brilliant as when they were first procured. THE BRANCHING CORYNE. Peeping about among the pools that lie clear and calm in the hollows of the rocks below the Torrs, my eye was attracted by a tuft of that feathery sea-weed, Ptilota sericea. It is not uncommon, fringing the perpendicular sides of the ragged ledges and out- cropping strata, near the lowest tide-mark, wherever the form of the succeeding ledge allow^s the water to lie in a long, narrow and sharp -bottomed pool. The colour of this sea-weed is not particularly attractive, for it is of a dull brownish red, and the fronds have frequently a ragged appearance ; but if it be carefully spread out in a saucer of sea-water and examined, there will always be some branches to be found of a livelier hue than the rest, and these will best show the exquisite plumose structure. Each branchlet resembles a tiny feather regularly pinnated ; and if 190 THE BRANCHING CORYNE. examined in a microscope of rather high power, each of the ultimate nerves of the pinnation, as well as the vanes or pinnules themselves, is seen to be com- posed of a single row of red transparent cells, of an oblong cylindrical form sometimes swollen in the middle, attached to each other end by end, looking something like the back-bone of a fish, when all the ribs and spines are detached. But what attracted me on this tuft of sea-weed whose soft feathery branches were hanging from the sides of the rock into the calm and dark pool, was a slender branching filament that was evidently a para- site. I separated the Ptilota with as much of the base as I could, and put it into a broad-mouthed phial of clean water, I could not wait till I got home, but looked out for a dry smooth stone on which to sit, pulled out my pocket-lens, and looked at it. To my gratification it was a polype that I had several times vainly wished to find ; I had no difficulty in recognizing its similitude to Mrs Johnston's beau- tiful figure of Coryne lyusilla in Brit. Zooph. pi. ii. (2nd. Edit.); though I think it rather belongs to the species distinguished as ramosa. It may possibly be the C. glandulosa of Dalyell (An. of Scot. V^ol. ii. pi. 21) ;— but hardly of pi. 22. It was not however, until I could institute a closer examination of it at home, that I fully apprehended its curious structure or its elegant beauty, and this, by the aid of a sketch that I immediately made of its microscopic appearance, I will endeavour to convey to you. The animal as seen by the naked eye looks like a Vut^.?: PhMul fyMuJtmanJil t Waitif, ZOWmi RAMOSA. ITS STRUCTURE. 191, very slender branching plant. (Plate IX. Fig. 1.) It is altogether about as thick as fine sewing cotton ; an irregularly winding thread creeps along the frond of the sea-weed, clinging firmly to it as it goes, yet not so tenaciously but that it may be pulled away with- out dividing. This creeping root sends off frequent rootlets, which crossing each other appear to anasto- mose, making a sort of net- work of a few oblong areas. Free stalks shoot up here and there from the creeping stem, one of which in my specimen is upwards of three inches in length : they show a very slight disposition to ramification ; but send forth at short intervals the polype-branchlets, irregularly on all sides. A few of these are compound, one branch let giving origin to another from its side. The creeping fibre, the stalk, and the branchlets are seen under the microscope to be tubular, and the two latter are mark- ed throughout their course with close-set rings, or false joints, apparently produced by the annular infold- ing of a small portion of the integument. (Fig. 2.) The tube is of a yellowish -brown colour, sufficiently trans- lucent to reveal a core or central axis of flesh running along its centre, and sending off branches into the polype-branchlets, from the open tips of which the flesh emerges in the form of a thickened oblong head, somewhat club-shaped, whence the name Coryne, (from xo/jt;j/vj, a club) which has been assigned to this genus by naturalists. The tube or sheath becomes membranous, or I think gelatinous, (like that of some Rotifera) at its margin, the ultimate three or four rings being evidently soft, scarcely consistent, viscid (entangling extraneous matters), almost colourless, .192 THE BRANCHING CORYNE. of undefined outline, and larger than the rest. The polype-flesh, which is very slender within the tube, enlarges rapidly as it emerges. The club- shaped head of the polype is studded with short tentacles of curious and beautiful structure. They vary much in number on each polype, but the full complement appears to be from twenty-five to thirty ; they are arranged in somewhat of a whorled manner, in four or five whorls, which are, however, (especiallv the lower ones) often irregular and scarcely distinct. Four tentacles usually constitute the final whorl ; about six the next, the others respectively contain seven or eight, and ten or twelve. The tentacles spring from the axis with a graceful curve, thev are rather thick and short, when contracted, but slender when elongated, nearly equal in diameter, except at the termination, where each is furnished with a glo- bose head. This head (See Figs. 3 and 4) is studded with minute tubercles on every part, which reflect the light, and which viewed by transmitted light are seen to be the terminations of numerous oval cells or folli- cles set in a divergent manner around the centre. Each tubercle is tipped with a minute bristle. The neck or body of the tentacle is perfectly transparent, pellucid, whitish or nearly colourless, and appears to be a tube with thin w^alls slightly hairy on the surface, but containing a colourless thickish axis, freely per- meating its centre, marked with delicate parallel rings. The globose knobs at the tips of the tenta- cles remind me of the unexpanded blossoms of an Acacia : they are generally tinged with pale red, and in some polypes, especially terminal ones, they THE EGG-VESICLES. 193 are of a fine rose colour, and have an attractive appearance. The tentacles are endowed with the power of free motion, and they frequently throw themselves to and fro with considerable energy ; when perfectly at ease they are canied projecting at right angles from the polype, hut are more commonly curved up towards it. The whole polype can he also tossed from side to side at pleasure. The tentacles are contractile and exten- sile in some degree ; for if the animal be taken out of water for an instant, and again replaced, these organs are found to he shrunk up to less than half of their former length. In a few minutes they recover their extension. Some of the polype heads are furnished with organs of another kind. Among the tentacles, chiefly of the lower whorls, are seen one or two oval bodies, about twice or thrice as large as a tentacle-head, which are attached by short footstalks to the polype-body. They are composed of a clear jelly-like granular mass, with an oval dark nucleus in the centre, connected with the attachment: the nucleus is of an orange or yellow hue, and is coarsely granulated. In some that I kept, this dark nucleus became larger until it almost filled the interior; but the death of the animals prevented my seeing the full development. These are egg-cap- sules, as I afterwards ascertained. About the end of August a fine specimen in one of my glasses fell under my notice, as having an appear- ance which made me think that it had just renewed its polype-heads after the old ones had decayed away. But in looking at it I saw that one head bore two s 194 DISCHARGE OF THE EGGS. ovigerous vesicles of so large a size that I at once isolated the head in hopes of witnessing the develop- ment of the embryo. The capsules showed the same structure, but as one was larger and evidently more developed than the other, I selected that one for particular examination. (Fig. 5). It was perfectly spherical, with a short footstalk, through which a neck of dark brown sub- stance connected with the central nucleus, which was also dark brown, round or slightly oval, and well- defined. This nucleus is not an aggregation of ova, as Dr. Johnston seems to suppose (Br. Zooph. 39), but a sort of placenta around which many ova are arranged, in the manner shown at Fig. 5 (representing for clearness' sake a section). These ova fill the whole space between the nucleus and the walls of the capsule ; they are of a clear, yellowish-brown hue, slightly granular in texture, rondo -triangular in form, with one angle resting on the placental nucleus. I had not been watching the capsule many minutes before its gelatinous walls burst at the side the farthest from the footstalk; and the ova began to issue forth in quick succession, as shewn at Fig. 6. It appeared that the elasticity of the walls was the inmaediate cause of their exit, for they w^ere evidently pressed out ; and towards the end of the process when few remained, the collapse of the walls became quite evident, and when the last ovum was excluded, the capsule had shrunk up so as to leave scarcely any appreciable space between the skin and the nucleus, which latter remained unchanged Twenty five ova were thus excluded from one cap- THEIR STRUCTURE. 195 sule, the process being all over in about a minute. To my surprise they were neither medusoids, nor ciliated planules, but soft gelatinous inanimate eggs, closely like those of Rotifera, without the least appearance of cilia, or of spontaneous motion (Fig. 7). They all sank immediately to the bottom of the glass cell, and remained motionless, as far as respects change of place. But after several hours I perceived that each egg was undergoing a constant change of shape, reminding me of those alterations of outline seen in the Ammba among Infusoria. Sometimes a constriction would appear across one end of an egg, which would move towards the middle, cutting it into two portions, then be slowly obliterated. Or from some point in the circumference little swellings would protrude, and these I have reason to think separated, for though I did not actually see this done, I saw several small globules lying, by, of exactly the same substance and colour as the ova themselves. Or an Qgg would imperceptibly become from round to oval, thence to pear-shaped, and thence assume some irregular form, and gradually revert to its original appearance. These changes were slow in operation, but they indicate that the ovum remains soft and shell-less, and that there is a principle of volition within it. They one by one decomposed. THE bird's head CORALLINE. In one of the shallow pools near the base of Cap- stone Hill, I took several beautiful specimens of one of the prettiest of the Polyzoan polypes, Cellularia 196 THE bird's-head coralline. avicularia. Well does it deserve the name of Bird's head Coralline, given it hy the illustrious Ellis, for it possesses those curious appendages that resem- ble Vulture's heads, in great perfection. All these specimens of mine were most thickly studded with them, not a cell without its bird's head, and all see- sawing, and snapping, and opening the jaws, with the most amusing activity, and (what was marvellous) equally active on one specimen from whose cells all the polypes had died away, as in those in which the polypes were protruding their lovely bells of tentacles. The polypidoms were distinctly visible to the naked eye, and attracted my attention before T touched them, while yet in their native pool ; though of course I did npt know what they were until I examined them to better advantage. Some of them stand two inches in height, and are about one third of an inch in widest diameter. The cells are set in longitudinal series, two or three rows abreast, and closely adhering; the branchlets thus formed divide dichotomously, (that is, into two, and each of these into two more, and so on, and so make broad fan-shaped branches, which are segments of funnels : and the peculiar elegance of this zoophyte consists in the mode in which these ultimate branches are set on the stem, viz. in a spiral turn, so that the effect is that of several funnels set one within another, but which yet are seen, on turning the whole round, to compose one corkscrew band of fans. (See Plate X. %. 1.) The stem ascends perpendicularly from a slender base which is attached to the rock, or to the cells of riai^X PrtntedhyMlMonMR Vaitoa . CELLULARIA AVICULARTA. LIVING MICROSCOPY. 197 a Lepralia which encrust the rock; the midmost part of the spire is most expansive, whence the diminution above and below is pretty regular, The general colour, while alive, is pale buff, but the cells become nearly white in death. When examined microscopically it is, however, that the curious organization of this zoophyte is discovered, especially when examined in full health and vigour, with all the beautiful polypes protruded and expanded to the utmost, on the watch for prey. It seems to me a poor thing to strain one's eyes at a microscope over a dead and dry polypidom, as it does to examine a shrivelled and blackened flower out of a herbarium ; though I know well that both the one and the other are often indispensable for the making out of techni- cal characters. But if you want to get an insight into the structure and functions of any of these minute animals, especially such as are so transparent that all the offices of life are discernible in active operation, or if you want to be charmed with the perception of beauty, or delighted with new and sin- gular adaptations of means to ends, oi if you desire to see vitality under some of its most unusual and yet most interesting phases, or if you would have emotions of adoring wonder excited, and the tribute of praise elicited to that mighty Lord God who made all things for his own glory, — then take such a zoophyte as this, fresh from his clear tide-pool, take him without injury done by violently tearing him from his attachment, and therefore detach with care a minute portion of the surface-rock itself, and then drop him with every organ in full activity into a narrow glass cell with 198 THE birds' heads. parallel sides, filled with the purest sea-water, and put the whole on the stage of your microscope with a power of not more than 100 linear, at least for the first examination ; — I greatly mistake if you will not confess that the intellectual treat obtained is well worth, aye, ten times more than worth, all your trouble. The cells of the Bird's-head Coralline are oblong, shaped somewhat like a sack of com, with a spine ascending from each of the upper comers. (See figs. 2 and 3.) Each stands on the summit of its prede- cessor in the same row, and side by side with those of its fellow rows, in such an order that the top of one cell comes opposite the middle of the one beside it. The top of the cell is rounded and appears imperforate, but we shall presently find an opening there. The broad side that faces inwardly has a large elliptical transparent space occupying nearly its whole surface, which, from its well-defined edges, I was long tempted to think, was really a great aperture, though delicate manipulation appeared to give a very subtle surface to it ; this, as I subsequently found, is covered with a very thin and elastic membrane, and answers a pecu- liar end. Just below one of the spines that crowns the summit of the cell, on one of the edges, x-ather on the interior than on the exterior, is situated a little tubercle, to which is attached, by a very free joint, a bird's-head process, in all essential particulars agree- ing with that of Cellularia cilitata which I have already described. The lower mandible in this case is, however, set farther back, and the upper is desti- tute of those tooth-like serratures that characterize it THE POLYPES. 199 in the kindred species. The motions are exactly the same in both cases. I observe that sometimes the place of the bird's head is occupied by an oval or pear-shaped body, which is probably an early stage of its development; and when perfectly formed there is much difference of size, some of these curious organs being twice as large as others on the same specimen. Now let us come to the polype itself. It is when we get a good lateral view of a single inhabited cell, that we obtain a knowledge of the structure of the tenant. The summit of the cell is then seen to pro- trude, diagonally towards the inner side, — (i. e. to- wards the axis of the spire) a tubular mcTiith, which is membranous and contractile. When the animal wishes to emerge, this tubular orifice is pushed out by evolution of the integument, and the tentacles are exposed to view, closely pressed into a parallel bun- dle (See fig. 4); the evolution of the integument, that is attached at their base, goes on till the whole is straightened, when the tentacles diverge and assume the form of a funnel, or rather that of a wide-mouthed bell, the tips being slightly everted (See fig. 5). They are furnished with a double row of short cilia in the usual order, one set working upward, the other downward. Their base surrounds a muscular thick ring, the entrance to a funnel-shaped sac, the substance of which is granular, and evidently muscular, for its contractions and expansions are very vigorous, and yet delicate. Into this first stomach passes with a sort of gulp any animalcule, whirled to the bottom of the funnel by the ciliary vortex, and from thence it is 200 THE DIGESTIVE SYSTEM. delivered, through a contracted, hut still rather wide gullet, into an ohlong stomach, the lower portion of which is ohtuse. An extremely attenuated duct con- nects this, which is prohahly the true stomach, with a globular, rather small, intestine, which is again con- nected by a lengthened thread with the base of the cell. By an arrangement common to the ascidian type of the digestive function, the food is returned from the intestine into the true stomach, whence the effete parts are discharged, through a wide and thick tube that issues from it close behind the point where the gullet enters. This rectal tube passes upwards parallel to the gullet, and terminates by an orifice outside and beliind the base of the tentacles. All these viscera are beautifully distinct and easily identified, owing to the perfect transparency of the walls of the cell, the simplicity of the parts, and their density and dark yellow colour. All of them are manifestly granular in texture, except the slender corrugated tube which connects the stomach with the globose intestine : this is thin and membranous, and is doubtless, if I may judge from analogy, capable of wide expansion for the passage of the food-pellet. The sudden contraction of the polype into its cell upon disturbance or alarm, and its slow and gradual emergence again, afford excellent opportunities for studying the forms, proportions, and relative positions, of the internal organs. In contraction, the globular intestine remains nearly where it was, but the stomach slides down into the cell behind it, as far as the flex- ible duct will allow, and the thick gullet bows out in front, shewing more clearly the separation between it THE CELL-MEMBRANE. 201 and the rectum, and the insertion of both into the stomach. This retractation is in part effected by a pair of longitudinal muscular hands, which are inserted at the back of the bottom part of the cell, and into the skin of the neck below the tentacles. The contraction of these bands draws in the integument like the drawing of a stocking within itself, and forces down the viscera into the cavity of the cell, which is probably filled with the vital juices- (See Fig. 4). Besides the hind bands there is one or a pair of similar muscular bands attached on each side of tha front part of the base of the cell, and inserted simi- larly into the neck. It was while watching the con- traction of these that I discovered with pleasure the use of the membrane- covered aperture up the front of the cell. At the moment of the retractation of the viscera into the cell, a large angular membrane was forced outward from the frout side, which was pro- truded more or less in proportion to the degree of withdrawal of the polype, and as the latter emerged again, the membrane fell back to its place. It is evident then that this a provision for enlarging the cavity; the walls are horny and probably almost inelastic, but when the stomach forces the intestine forward, and the thick gullet is bent outward by the withdrawal of the neck and tentacles, the needful room is provided by the bulging out of this elastic membrane, which recovers its place by the pressure of the surrounding water, when the pressure of the fluids within is removed. 202 ECONOMY IN NATURE. A POPULOUS STONE. The economy with which God works in nature has been often noticed, and especially that phase of it which consists in the profusion and variety of exist- ance that can he crowded and sustained in a given space. A plant is growing in the earth; it occupies a certain amount of room, and appears, to speak loosely, to fill it. But on examination we may find other plants growing on it ; its back, the angles of its branches, its buds, its leaves, the interior of its blos- soms, its seed-vessels — are occupied by many species of spiders and insects, which find ample room for the carrying on of their respective functions and the enjoyment of their lives ; not to speak of the birds, and butterflies, and bees, and flies, that are but tem- porary visitants, mere comers and goers. Many of these minute animals have other creatures living on them as parasites ; the earwig that is snugly enscon- ced in the tube of that flower is tenanted by a long intestinal worm ; yonder caterpillar so calmly gnaw- ing out sinuous cavities in the edge of a leaf, sup- ports within a colony of infant ichneumons ; the little wild bee that has just alighted on this blossom would be found to carry about sundry maggots whose black heads peep out from beneath the rings of his abdomen. Even the very juices that circulate in the vessels of the plant probably bear along in their course the germs of invisible animalcules ; for if we take the leaves, or the flowers, or the stems, and make an infusion of them, carefully covering the vessel to A POPULOUS STONE. 203 prevent intrusion from without, we shall find in a day or two that the water is swarming with living creatures of various kinds, known to microscopic observers as infusory animalcules. But I think nowhere is this economy seen to better advantage now nowhere here is it more admirable than in the sea, especially about the rude rocks that fringe our coast, and that we are apt to think so barren and repulsive. The rough stony surface of the rock between tide-marks, is quite alive with beautiful and interesting creatures both animal and vegetable ; and as we find the profusion increase the nearer we approach to that line whence the nutrient water never recedes, we have a right to conclude, that it extends to an indefinite distance below tide-limit. The tiny pools that lie in the. hollows, renewed twice every day by the influx of the sea, are perfect nurseries of plants and animals of the most curious forms, and of the most interesting structure. I will endeavour to enumerate the diverse kinds of organic life that I have detected on a small fragment of rock now before me. It is a bit scarcely bigger than a penny-piece, which T detached the other day from a little rock-pool near low-water mark on the sea-ward side of Capstone Hill. One single polype on it attracted my notice by its beauty ; and when I applied my chisel to the fi-agment, I did not suspect that it was particularly rich in animal life ; nor is it richer than usual in the amount of animal life that it supports, but the variety certainly struck me as remarkable on so small a surface, when I came to examine it. 204 SEA-WEEDS. First of all, the surface is largely encrusted with the cells of a Lepralia, the species of which I shall probably better know when the development of some of its granules that I am watching is further advan- ced. Over these cells a yellow Sponge has spread itself, very thin, and profusely spiculous ; and patches of a scarlet Sponge of another kind occur. Another portion of the surface is occupied by the rose-coloured crust of the common Coralline, overspreading like a beautiful smooth lichen, but without a single shoot or many-jointed stem as yet thrown up, to indicate its true character. These then may be called the ground-work, for we have not yet got higher than the surface. From this spring up two or three tiny Sea-weeds. That very elegant plant, Bryopsis plumosa, is represented by several of its fronds, of a most lovely green hue, pec- tinated on each side like a comb, with perfect regu- larity. Then there is a little specimen of Ptilota sericea, also a pectinated species, something like the Bryopsis in delicacy, but of a brownish red colour, and much less beautiful. Besides these, there are growing parasitically on one of the polypes presently to be mentioned, several very minute ovate fronds, not more than one eighth of an inch in length, of a rose-red hue, which are probably very young specimens of some of the Rhodymenm. Now let us look at the Zoophytes. Most conspi- cuous are several of the corkscrew-funnels that first caught my eye while undisturbed in the quiet pool, and induced me to secure the fragment of supporting rock, — the spiral polypidoms of Cellularia avicularia. ZOOPHYTES. 205 one of the most curious of our native zoophytes. The specimens are particularly fine ; the cells tenanted with healthy polypes in great numbers, protruding their crystal stars of tentacles, and covered with scores of birds' heads nodding to and fro their bald heads like so many old men sleeping at church, and opening and shutting their frightfully gaping jaws like snap- ping turtles. Up the stem of one of these Bird's head Corallines a colony of Pedicellitia Belgica has entwined its creeping clinging roots, and is displaying its clubbed polypes with unfolded tentacles in every direction. This is a very common species in our rock- pools, parasitic on many sea-weeds and calcareous polypes. The most abundant thing of all is Crisia aculeata, a delicate and pretty species, easily recognised by its long slender spine springing from the margin of every cell. The multitude of these spines- gives a peculiar lightness to the little shrubs in which this species delights to grow. Several other species are parasitic on the Crisia. I detect the curious tiny snake-heads of Angiiinaria spatulata, entwined about its stems. A stalk of Bowerbankia imbricata also is here, studded with little aggregations of cells in dense clusters, set on the slender thread-like stem at wide intervals. And a few of the pitcher-hke cells of that singular zoophyte, Beania mirabilis, set with hooked prickles, I find ; in one of which I can see the polype snugly packed, though I cannot get him to display his beauties out- side his door. Besides all these, there are at least two kinds of T 206 STARFISHES. Hydroid polypes, both species of the family Corynidm. The one is a minute sessile Coryne, I believe unde- scribed ; the other is either Clava multicornis or a Hydractinia, for though two specimens occur of it (as well as of the former) I cannot, from their youth, determine to which genus it is to be referred.* When I first looked over the fragment with a lens, I was sure that I saw Eiicratea chelata, with active polypes ; but as I cannot by close searching again find it, it is possible I was mistaken. But even at this moment I discover something new ; for two little Balani have just opened their valve-like shells from amidst the yellow sponge, and are now throwing out their curled fans of most exquisitely fringed fingers, with precise regularity. The minute Crustacea that hide and play among the tangled stems of the zoophytes I will not mention, because their presence there may be considered as only accidental. But I cannot reckon as transient visitors a brood of infant Brittle-stars which I find creeping about the bases of the Cellularia, because I perceive that they have quite made the spot their home, and though they have been now several days in a vessel of water, free to leave their tiny fragment and visit others, or to roam over the expansive bottom of the the glass, if they will, they have no such desire ; but * Its head is rose-coloured, and this agrees with Clava, but the tentacles are covered with whorls of pointed tubercles, which Dr. Johnston states is not the case in that genus. On the other hand I cannot trace any echinated crust from which the polype springs, which is characteristic of Hydractinia. There are about nine tentacles, which appear to me to be set nearly in the same plane. No appearance of OTarian capsules is to be traced. It is probably a yoimg Clava. god's providential care 207 cling to the circumscribed limits of their native rock, with as unconquerable a partiality as if they were Swiss, and these fragments of stone were their own dear Alps. They crawl and twine over the surface, and round the edges ; but it is with the utmost reluc- tance, and only by the use of force and stratagem combined, that I can get one off from the hold to which he tenaciously clings. I am watching the development, and I may say metamorphosis, of the little brood with interest, and cannot yet say what they are ; but I think they will turn out to be either Ophiocoma rosula, or O.minuta, probably the latter. Now is not this a very pretty list of the tenantry of a bit of slate-rock two inches square ? And does it not read us an instructive homily, — one of those "sermons in stones" that the poet speaks of, — on the beneficent care of Him who " openeth his hand, and satisfieth the desire of every living thing" ? What a family is his to be provided for day by day, and yet every mouth filled ; — not one of these hungry polypes going unsupplied ! What a vast amount of happiness we here get just a glimpse of! for life, the mere exercise of vital functions in health, and in suitable circumstances and conditions, — the circumstances and conditions, I mean, for which the creatures themselves are fitted — is undoubtedly enjoyment, probably of as high a nature as the inferior animals are capable of receiving. We need not then ask for what purpose God has made so great a variety of creatures of no apparent benefit to man. Is it not an end worthy of a Being infinitely wise and good, that He has stocked every nook and corner of his world, even to overflow- 208 THE RESTITUTION OF ALL THINGS. ing, with sentient existences, capable of pleasure, and actually enjoying it to the full, hour by hour and day by day? It is sin alone that is the cause of suffering ; and though as a whole the domain of man partook of the lapse of its federal head and lord, and so " the whole creation groaneth and travaileth together until now," " by reason of him who so subjected it to vanity," yet we may suppose that at least the inverte- brate portions of the animal creation suffer their share of the fall rather coi'porately than individually, rather nominally, in dignity, than consciously, in pain or want. And yet I suppose that at that glorious "manifestation of the sons of God," when creation shall be more than reinstated in primal honour, and shall be permanently established, so as no more to be liable to lapse, in the immutability of the Manhood of the Son of God, who is able to " bear the glory," even these low-born atoms of almost unseen and unsuspected life, shall in some way or other, get an augmentation of happiness, and thus take their humble share in the blessing of the redeemed inheritance. THE SESSILE CORYNE. The little Coryne that I have mentioned in the preceding enumeration, appears to differ from any of those mentioned by Dr. Johnston. It may possibly be the young of some recognised species, but mean- while I shall describe it provisionally, as Coryne sessilis. (Plate XIV, fig. 3). The polypes, about -^ inch high, stand erect from the creeping stem, without any portion of the tube being free. They are long, THE SESSILE CORYNE. 209 slender, club-shaped, transparent, colourless except near the extremity where the core is dark red. The surface is much wrinkled transversely, and there is a very distinct polygonal reticulation, as if of cells, visible, beneath the integument, since it is not in the same focus as the wrinkles. The tentacles are very numerous, (I counted forty-five on one head, and there were probably some unseen,) shaped as in the larger species, with w^hich their structure agrees, with a hyaline wrinkled neck enlarging abruptly into a globular yellowish head ; they are arranged in about six whorls, and stand out just as in the other species. They are greatly smaller than those of ramosa, as is the whole polype, but especially the tentacles, their diameter not being more than one-fourth that of the tentacles of G. ramosa. I see no capsules on any head. (Fig. 1.) Several of these polypes were standing up, not very near together,- from a crust of Lepralia (on the stone just mentioned as chiselled from a rock-pool at Cap- stone) close around the base of a cluster of Cellularia avicularia. On very carefully separating one from its root, I found that the creeping stem was very small, not more than one-fourth the length of the free pol}^e ; it appeared to consist of a homy trans- parent tube not distinguishable from the integuments of the polype, with which it was evidently continuous. If the animal is young, is the encasing tube not formed until some advance is made to maturity ? Another specimen, sessile on the Lepralia without any apparent creeping stem, was much taller and more slender, apparently by voluntary elongation. 210 THE BELGIAN PEDICELLINA. being undisturbed. The polype was almost quite hyaline, with the red core only near the tip. The tentacles were still smaller than in the other, the necks tapering evenly to the junction of the globose heads, where they were very attenuated : the necks were hyaline with a few distant rings. They stood out at right angles, generally quite straight. The only tube appeared to be a very few investing folds of gelatinous matter lying like a loose stocking about its foot. Fig. 2 represents this variety. After a day or two, both specimens shrank up into a shapeless club, with all the tentacles agglutinated together and around the body, in a mass. THE BELGIAN PEDICELLINA. One of the most common of the minute zoophytes on this part of the coast is a species oiPedicellina. Dr. Johnston informs me that it is the*P. Belgica of Van Beneden, a species which, when the " History of the British Zoophytes " was published, had not been recognised on our shores. I find it in great abund- ance parasitical on the bases of the smaller sea-weeds that grow at low water, and trailing over other objects also. The base of the animal consists of a cylindrical stem (Plate XII. fig. 1.) about -^ inch in diameter, which creeps in an irregular twining manner over the support, branching at intervals irregularly, the branch- es intertwining and crossing each other, and sending forth, at more or less remote intervals, rounded buds, which soon elevate themselves upon a foot-stalk. THE TENTACLES. 21 I Both the stalk and the head now develop themselves in length and thickness, until the stalk attains a length of ahout -^ inch, and a thickness of ahout -^. The head or body of the Polype has now become somewhat bell -shaped, more gibbous, however, at one side than elsewhere ; and this side, for distinction's sake I shall call the back. The edge expands into a wide circular disk sometimes slightly reverted, around which are set, a little within the extreme rim, four- teen rather short cylindrical tentacles, separated from each other by somewhat more than their own width. They do not expand (so far as I have seen) beyond the limits of the disk, but rising perpendicularly from the edge, they curl over their tips in an elegant manner towards the common centre. The sides of these tentacles are set with delicate cilia (Fig. 2), the waves of which pass up on one side and down on the other. I think that the cilia are confined to the sides, for at either edge of the tentacular circle, where the exterior came between the eye and the light, I could not detect the least ciliary action. By means of the motions thus produced I saw minute, floating parti- cles drawn within the disk, and others shot forcibly out. The tentacles do not appear to be capable of con- traction or elongation, but when expanded their in- curved tips are continually being thrown inward, so as to increase the curl, and again opened. This action, which is almost constantly being performed, is a little spasmodic jerking or grasping, very slight in its degree. When alarmed, however, they are drawn inward by the common contraction of the 212 THE DIGESTIVE SYSTEM. disk, the edges of which then close together and form a puckered nipple, and the whole head becomes pear- shaped, in which state the animal might be mistaken for some large species of the stationary Rotifera. The colour of the whole animal is pellucid white, and viewed by reflected light, gives us no insight into its internal structure. It is only when examined as a transparent object that its interior is at all revealed. Even then the intguments are but imperfectly trans- parent ; the whole animal, body, stalk, and stem, is covered with a thick coat of gelatinous matter, which is viscous, and in which Diatomacece, and other ex- traneous bodies, become entangled ; the whole exter- nal surface is either granular or slightly corrugated, and transmits the rays of light tinged with yellowish brown ; these circumstances, combined with the over- lying of the viscera in the globose body, render the internal parts difficult of determination. It appears, however, that the funnel of the disk proceeds diagon- ally downwards, until it nearly reaches the wall of the abdominal cavity on the ventral side. It then sud- denly turns, and (as I think) performs several convo- lutions transversely across the body. At length it merges into a capacious sac which occupies the whole of the lower part of the cavity of the body. It appears, however, as if the centre only of this sac were void, for granules of the food may be observed, in almost every individual, agglomerated into a somewhat loose lengthened pellet, which continually revolves on its long axis. This food-pellet becomes visible as a slender thread near the middle of the sac, and passes diagonally upward, increasing in size as it advances THE GEMMULES. 213 towards the middle of the back, where it terminates. An outline, a little larger, is visible around it, which I conjecture to be the internal wall of the intestine, within which an energetic vermicular ciliary action goes on ; the rest of this viscus is composed probably of a thick glandular tissue, a structure not uncommon among the Rotifera. Within the substance of this sac, or else overlying it is a large transversely-oval viscus, of a yellowish brown hue, punctured all over with close- set round dots. The large intestinal sac passes in a narrow tube, from the point where the food-pellet terminated, forwards and upwards towards the front, and probably opens into the funnel ; for under pressure the contents of the intestine were forced out at the mouth, following the course of this tube. Such is the digestive system, no gizzard or manducatory organs being visible in any part. By one of those fortunate accidents which some- times occur unexpectedly, but which cannot be commanded, I obtained some light on the generative function of this zoophyte. Looking at one through the microscope, I perceived seated on the front, which was in a semi-expanded state, a minute oval hyaline body set with long cilia, with which it seemed to be struggling to free itself from the contact of the parent animal. Presently I saw another emerging, and I then observed what had escaped my notice before, that several more were lying in the free water around, sluggishly waving their cilia, but not swimming. On this I applied a slight pressure with the compres- sorium, and presently a mass of some twenty or thirty was protruded from the mouth, most of which mani- 214 THE GEMMULES. fested independent action. These bodies, (germs I may surely call them) are somewhat pear-shaped (Fig. 3) with a little tubercle at the larger end, around which are set a few (about four or five) long cilia or setae, twice or thrice as long as the body. These are not used for vibratile action, but as oan slowly waved through the water, or apparently to push withal, when the gemmule is making good its exit. When this is effected, it proceeds only a short distance ; the waving motion then becomes more feeble, and presently ceases. Under stronger pressure a larger mass was forced out, consisting mostly of germs immature, in which the cilia appeared as a broad thin band stretch- ing out from the neck forwards, but without any motion. I could distinctly trace the course of these germs through the pellucid body, and found that they proceeded from a large opaque mass, lying across the cavity, between the buccal funnel and the large intestinal sac; and they appeared to issue by the same orifice as that which gave exit to the contents of the intestine. I hence infer, that like other animals whose adult character is to be fixed to a changeless base, the young of this species are endowed for a brief period with the faculty of locomotion, sufficient to enable them to transport themselves to a site more or less remote from the parent, where then each fixes itself and becomes the founder of a colony. The motions of this zoophyte are lively and ener- getic; and hence we may infer the existence of a well-developed system of muscles. The body is occasionally tossed to and fro by the forcible bending of the foot-stalk; this latter is in some degree capable AFFINITIES OF PEDICELLINA. 215 of contraction, though not to any great extent. The creeping stem, however, which appears to he homoge- neous with the foot-stalks, has no power of contraction. The stem and stalks are transparent, of a yellowish hue, shewing a fibrous texture, or perhaps one com- posed of irregular lengthened cells. By contraction and flexure it is thrown into annular wrinkles, from the appearance of which I should judge the substance to be coriaceous. Something like a fibrous core can be discerned traversing its axis, which can be traced through the slender constricted joint into the body, whence it dilates as it passes upward. From analogy in stalked Rotifera, I conclude this to be a fascia of muscles, perhaps becoming two bands in the body, and passing upwards on opposite sides to the head ; their office being the retractation of the tentacular disk. The opacity of the integument precludes the sight of any other muscles, or of any nervous cords, if such exist. The structure of this zoophyte seems to point it out as osculant between the Anthozoa and the Polyzoay though manifesting no very close affinity with the normal genera of either. It is interesting also as being evidently a link by which the Zoophyta are con- nected with the Rotifer a, since it certainly approaches nearer to Stephanoceros, and Floscularia than any other Polype yet discovered. After these observations were made, I obtained specimens of much larger size and in great profu- sion, entwined among the stems of a Crista, from low- water off the Tunnel. It was a beautiful sight to look at the hundreds of heads all in active motion, the 216 THE CILIARY DISK. moment after they were detached from the rock (a piece of stone being chiselled off) and put into a phial of clear water. The crown of arching tentacles was much more elevated than I had yet seen it, the tips only being incurved ; and the floating atoms were ever and anon shot forcibly from out the disk. Some excellent views with the microscope enable me to correct and augment my observations. The ten- tacles are nearly square in section, or slightly grooved down the back. Their bases interiorly may be traced a good way down the funnel. The marginal part of the disk that surrounds and connects their bases is like a hyaline web, marked with close-set concentric lines or wrinkles. The lateral ciliary current of each tentacle runs down until it meets a strongly- marked ring of cilia, set round the funnel a little below the origin of the tentacles, and it was interest- ing to see in a vertical aspect each individual current merge into this great vortex. The walls of the fun- nel below this circle are more thick and opaque, and are perhaps muscular and endowed with the power of various contraction; like the oesophageal funnel in Stephanoceros, &c. Two that I counted had each fifteen tentacles. They associate with other Polypes. In this intsance PedicelUna, Anguinaria spatulata^ and Bowerhankia imhricata, had all entwined their creeping steems to- gether around the CrisiUj which was also intermingled with Crisidia cornuta. When the tentacles are much extended and expan- ded, the resemblance to some conditions of Stephaif- oceros is very striking, and they are every instant THE SPINED AND SLENDER PEDICELLINA. 217 twitched inwards at the tips, in the same manner as those of that genus. I find two other species of the same genus : the one is P. echinata, much like the ahove in every respect, except that the stalk is more or less studded with thick hristles or prickles standing out at right angles. The other is marked hy a very slender stalk, sometimes gently swollen in the middle, and having its base abruptly enlarged into a bottle-shaped bulb. The tentacles nearly meet in the centre of the disk. (Plate XII. Fig. 5). This species chiefly occurs on the common Coralline. I have little doubt that it is the P. gracilis of Sars ; though T find the bulbous base much more abruptly angular than in his figures; my specimens also have fifteen tentacles, whereas twenty are assigned to the species by this eminent Norwegian zoologist. This character, however, depends probably upon age rather than upon species. CHAPTER IX. Metamorphosis of Lepralia — Appearance of th.e Geramule — Budding of the Cell-spines — Development of the Poh-pe — Growth — The Three-headed Coryne — Singular Use of its Disk — Beania — Coralline Light — Lime Light — Tubulipora — Marine Viviaria — The Principle explained — Elegance of Sea- plants — Facilities for Study — Details of Experiments — Mode of procuring the Sea-weeds — Success — Anticipations — A curious Coincidence— Sponge -Crystals — Their elegant Form — Immense Numbers — Mutual Entanglement — Ciliated Sponge — Its crystal Coronet — Powers of Restoration. METAMORPHOSIS OF LEPRALIA. Ju7ie Wth. — I detached a minute atom of a red colour swimming rapidly in gyrations in the water in which were fragments of polypiferous rock. I caught it with a tube and examined it. It was a globose, or rather semi-elliptical body, of a soft consistence, covered on its whole surface with strong bristly cilia, in rapid vibration. Near the rounder end, was evi- dently an orifice, with amorphous lips ; and when the globule was submitted to slight pressure, just sufficient to confine it, it made eff'orts to get away by slightly lengthening itself, and drawing in the sides around this mouth, which was in a manner protruded forcibly Tlarj^XIR. f- ^r>:fifrp^.^ 'r umi^ ^Hfrc PrLniixLl.-HtUbitajf'di'njlmt 1-5,. LEPR ALIA coccmr; A? >. in, TURRiS NF(^;,K(;TA !l -lOI': ANI •' '■'• i' l.A . GEMMULE OF LEPRALIA. 219 and repeatedly. Presently on the restraint being continued, the globule threw out from different parts of its periphery, long lancet-like flexible pointed bristles twice as long as the cilia, with which it pushed here and there. These lancets I perceived were ordinarily bent at an acute angle near their base^ so as to lie flat on the body unperceived ; and I think there were many of them, for I fancied I saw the minute basal parts of many that were so concealed. Those that were exj)osed were ever and anon suddenly bent up again and so concealed, and again protruded. After examining it awhile, I carefully put it without injury into a glass of sea- water alone. Its diameter was about -^0^^^ i^^^^ (^^^ Plate XIIL Fig. 1). I afterwards saw another in the original vessel, and both this and the former had the habit of coming into contact with the side of the vessel, and continuing in one spot for a considerable while, (half an hour or more) not moving a hair's breadth from the place, and yet evidently not adhering, because gyrating uniformly all tlie time by the ciliary action. One of these I lost, and the one that I isolated got into a comer of the cell, and decayed. But carefully looking at the origi- nal vessel, I found some half a dozen scattered over the sides, but in a more advanced condition. These were all firmly adhering to the glass, and that so inseparably that the most careful touch of a pin's point to detach one, tore it into a shapeless mass of broken flesh. The youngest of these had taken the form of a flattened oval, or long hexagon, with one end more pointed than the other, in which the redness was curdhng and separating into masses. The others 220 BUDDING CELL-SPINES. showed eight points budding from the more acute end ; and in one the most advanced, these were already produced into eight slender spines, set around the end like the teeth of a comb, and slightly divergent. In this the the general hue was a pale pellucid flesh colour ; and an opaque band of deep red was arranged in a horse-shoe form, around the end oppo- site the spines. (See fig. 2). During the next day httle change took place except the lengthening of the spines ; but by the following evening, forty-eight hours after I had observed it in the state just described (fig. 2) it had made importan^ advances. The spines, without increasing in thick- ness, had shot out, until the middle and next pair were nearly as long as the transverse diameter of the body >' the other two pairs were much shorter. A touch with a pin broke short off" two of these, proving that they were very brittle, whence, and from their crystal- line appearance, I infer tlieir calcareous or siliceous nature. But while I was examining it I was surprised to observe a bundle of filaments among the spines, and much resembling them, except that they were bent irregularly, and slowly moved among themselves, while the spines were fixed. Lo ! the bundle is gently protruding, and presently the whole is withdrawn Hke lightning out of sight into what I can no longer hesi- tate to call the oval cell. A simultaneous jerk in the contents of the cell set me upon trying to make out the form of these, in which, notwithstanding the con- fusion of the parts, I had already traced (or fancied) the body of an ascidian polype, doubly bent up, like that of a Membranipora or Flustra. By careful DEVELOPMENT OF THE POLYPE. 221 watching during many protrusions and retractions, I was enabled to make out this with sufficient distinct- ness ; though some portions of the area were still semi- opaque, and therefore obscure. I could see also an am- ple aperture on the surface opposite to that at which I was looking (viz. the adhering base, for as it was in a glass vessel, ] could apply my microscope only to the outside, and therefore only saw it through the glass to which it had attached itself) ; this aperture on the upper surface, was excentral, and situated on tlie half nearest the spinous end. Possibly this aper- ture was covered with a membrane, (like that in Cellularia avicularia) for I think that the bundle of tentacles were not protruded through it, but through an orifice more terminal, yet still above the plane of the spines. The body of the polype, of a homy yellow hue, was doubly bent to one side, and behind the angle was an irregular transverse mass of deep red matter, and another small spot of the same was a little on one side of the centre. These were all the remains of the scarlet substance left. (See fig. 3). On the morning of the third day I found the polype perfectly formed and well-expanded, a circle of thirteen tentacles; these were usually protruded in tlie form of a funnel, with the rim so slightly everted as scarcely to entitle it to be called a bell, but now and then they were momentarily spread out quite flat so as to make a beautiful plane star, the tips forming a regular circle. I could now distinctly see the intes- tinal tube, which is inserted into the stomach low down in the body, and proceeds nearly parallel with it to the aperture. The body of the polype is con- 222 THE THREE-HEADED CORYNE. siderably protruded from the cell, below the diver- gence of the tentacles. The great circular aperture on the upper surface, appears to have a rim. (See %• 4). June iSt/i. A week old: no material alteration from last record. I found, however, the next day a gemmule represented at fig. 5, which perfects the series. It was in a state intermediate between figs. 1 and 2. Its length is ^th inch. The edges are pellucid, and have an appearance of radiating fibres. The redness is curdled, but not wholly separated. This continued for several days, the red mass slowly concentrating • but no spines appeared ; and at length I fear it was broken accidentally ; granular matter came out, leav- ing a glassy cell attached to the side of the vessel. The species was probably Lejiralia coccinea ; but eight spines are more than are ascribed to any of our species. THE THREE-HEADED CORYNE. June 18. — In the glass jar that contains Actiniae, &c., that I brought from Torquay, I found on the Membranipora, a very young specimen of Polycera 4:-lineata, about J inch long : very pretty. Some of the cells of the polype appeared to have been recently gnawed, probably by this little mollusk. In the same vessel I found another species of Coryne. (Plate XIY, figs. 4 — 6). It is sessile on a decaying frond of some Alga, about gQ-inch in height in medium extension, with no appearance of tube. The polype is sub-cylindrical, slightly clavate, round- hinlAdhylluJimajidfL 8t iiitJlii i^;-} CORYNE SESSILTS. 4- 6. CORYNE CIEKBERUS, ITS FORM. 22^ ed at the tip, where there are three tentacnla formed exactly Hke those of C. ramosa, but the round heads are much larger in proportion, and more coarsely granulated ; their diameter is nearly equal to that of the polype : the head is flattened vertically ; the oval grains of which it is composed are very distinct, and eacli is furnished with a conical transparent point ending in a short bristle. Tliis point is distinct from the oval granule, and its outline is perfectly discernible when seen vertically, as well as laterally. (Fig. 6). Near the base of the polype, at a slight swelling, there are four or five arms, which seem to be the withered remnants of former tentacles, from which the round heads have sloughed off. The specimen may be the young of C. ramosa, (Fig. 5.) The animal is active, bending both the tentacles and the body in all direc- tions : the latter especially is frequently curved round into a circle, so that the tip touches some part of the side, or one of the tentacles. The very extremity above the tentacles is surprisingly flexible ; and its walls are contractile and expansile. I saw the terminal orifice often partially opened by evolution of the skin, and then partially closed by a puckering of the sur- rounding margin : sometimes the interior was turned out so far as for the head to form a longish cylinder. But to my surprise, I find that this orifice is a great sucking disk. I had put the animals in what micros- copists call a live-box, and the two glass surfaces were just wide enough apart to allow the animal free liberty to turn about in all directions as far as it wished. On my looking at it after a momentary interval I saw that the extremity had suddenly become a large circular 224 SINGULAR USE OF ITS DISK. disk, of thrice the diameter of the body ; its substance was gelatinous, full of oblong granules arranged con- centrically. (See fig. 4.) I neither saw this disk evolved nor retracted ; but after some time, on looking at it, the same phenomenon was repeated. In order to obtain a better sight of it, but without a suspicion of what I was about to effect, I slightly turned the tube of the box, carrying with it the alga to which the polype was attached, my eye upon it attentively observing all the time. The base of the polype moved away from its position, but the broad disk was im- moveable ; I continued to turn the upper glass, until at length the body was dragged out so as to be con- siderably attenuated ; still the disk maintained its hold of the lower glass, with no other change than that of being elongated in the direction in which it was dragged. At length it slowly gave way, and resumed its original shape by gradual and almost imperceptible diminution of the circumference. The oval grains of the tentacle-heads appear to be packed in a gelatinous substance which fills their interstices, and envelopes the whole, which is then (I tliink) inclosed in a thin calcareous shell, for it breaks with a loudish crepitation under pressure. It is pos- sible however, that this crackling may have indicated the crushing of the grains themselves.* They often get loose from the heads without pressure, and then • At this time I was not familiar with the filiferous capsules of the Helianthoid Zoophytes. I will not cancel my recorded impressions of the actual observation ; but I now think that it is likely the granules were filiferous capsules, the crepitation that which marks the emission of the thread, and the "film of jelly," possibly the filament itself. BEANIA. 225 appear to drag a film of the jelly in which they are inclosed. Each granule is hollow at the centre, the cavity being oblong, and connected with the surface by a slender orifice at the interior end of the oval. I am astonished that Van Beneden should say there is no globosity in these tentacles in the active and vigo- rous polypes, and that this is merely the result of contraction. On the contrary I do not believe that the head is capable of contraction ; and I am sure that it is globular in polypes in the highest health and activity. I venture to assign to this little Coryne a provisional appellation, subject, of course, to future correction. Its triple head suggests the name of Coryne Cerherus. BEANIA MIRABILIS. The Beania mirahilis before-mentioned was para- sitical on the same Cellularia avicularia, and con- sisted of only a few cells springing from their creep- ing thread. Dr. Johnston's figure is very good, but the spines in my specimens were more regularly curved, and tapered to a point. Their direction more- over is not fully expressed by him, they shoot partially around the cell, following the curve of its transverse outline, but diagonally also, towards the point. The spines of both series thus curve diagonally towards each other, and if sufiiciently projected, would meet and cross at obtuse angles, and embrace the cell. I cannot see any keels ; the spines appear to me to spring from the smooth glassy side of the cell. 226 COMBUSTION OF LIME. COEALLINE LIGHT. The common Coralline, if held to the flame of a candle, burns with a most vivid white light. If we take a shoot and let it dry, and then present the tips to the flame, just at the very edge, not putting them into the fire, the ends of the shoot will become red first, snapping and flying ofi" with a crackling noise ; some, however, will retain their integrity, and these will presently become white-hot, and glow with an intensity of light most beautiful and dazzling, as long as they remain at the very edge of the flame, for the least removal of the Coralline, either by pulling it away, or by pushing it in, destroys the whiteness.. It will however return when again brought to the edge. The same tips will display the phenomenon as often as you please. I did not find the incrusting lamina that spreads over the rock before the shoots rise, show the light so well as the shoots. The brilliant light obtained by directing a stream of oxygen gas upon a piece of lime in a state of com- bustion, occurred to my mind as a parallel fact ; and I experimented with other forms of the same substance. The polypidoms of Cellularia avicularia, and of Eucratea chelata, one of the stony plates of Canjophyl- lia, and a fragment of oyster-shell, I successively placed in the flame, and all gave out the dazzling white light exactly as the Coralline had done. The homy poly- pidom of a Sertularia, on the other hand, shrivelled to a cinder. THE FAN TUBULIPORA. 227 TUBULTPORA FLABELLARIS. June 21. — At Hele, in a dark tide-pool between overhanging rocks, I gathered a frond of Nitoj}hyllum laceratum, on which were several patches of a pretty- zoophyte, evidently identical with the Tuhulijwra Jllahellaris of Fabricius, which though known to inhabit the shores of Europe from Greenland to the Mediterranean, has been only lately recognised as a British species by Mr. W. Thompson, who found it on the North coast of Ireland. It consists of a great number of long, slender, cylindrical tubes of pellucid coral or shelly substance, set side by side and over- lapping each other on the frond of the sea-weed, to which they adhere for a portion of their length, and then curve upward so as to be free at their terminal portions. The tubes are somewhat crowded, but diverge from each other, so as to form a resemblance to a curling feather. The margins of the tubes are oblique in some cases, in others quite transverse ; and the edges are slightly expanded. The exterior of the tube is set with many annular ridges, which are evidently the expanded rims of the tube at various periods of its growth ; the new shelly matter being deposited not from the very edge, but from a ring a little way within it, so as to leave the narrow expanded lip projecting as a permanent ridge, in a manner com- mon in many shells. The walls of the tubes are sparsely studded with minute round grains, like those of Grisia ; and similar ones are found far more thickly in the shapeless mass of shelly matter that envelopes the bases of some of the tubes, connecting them like a web. 228 MARINE VIVARIA. MARINE VIVARIA. One prominent object that I had in view in coming to the coast was the prosecution of a cherished scheme for the conservation of marine animals and plants in a living state. For several years past I have been paying attention to our native Kotifera, and in the course of this study had kept fresh water in glass vases unchanged from year to year, yet perfectly pure and sweet and fit for the support of animal life, by means of the aquatic plants, such as Vallisneria^ Myriophyllum, Nitella and Char a (but particularly the former two), which were growing in it. Not only did the Infusoria and Rotifera breed and multiply in successive generations in these unchanged vessels, but Entomostraca, Plan- aruB, Naides and other Annelides, and Hydrce, con- tinued their respective races ; and the young of our river fishes were able to maintain life for some weeks in an apparently healthy state, though (perhaps from causes unconnected with the purity of the water) I was not able to preserve these long. The possibility of similar results being obtained with sea-water had suggested itself to my mind, and the subject of growing the marine Algae had become a favourite musing, though my residence in London precluded any opportunity of carrying out my project. My notion was that as plants in a healthy state are known to give out oxygen under the stimulus of light^ and to assimilate carbon, and animals on the other hand consume oxygen and throw ofi" carbonic acid^ the balance between the two might be ascertained by THEIR ADVANTAGES. 229 experiment, and thus the great circular course of nature, the mutual dependence of organic life, be imitated on a small scale. My ulterior object in this speculation was twofold. First, I thought that the presence of the more delicate sea-weeds (the Rhodosperms or red famihes especially, many of which are among the most elegant of plants in colour and form), growing in water of crystalline clearness in a large glass vase, would be a desirable ornament in the parlour or drawing-room ; and that the attractions of such an object would be enhanced by the presence of the curious and often brilliant-hued animals, such as the rarer shelled Mollusca, the grace- ful Nudibranchs, and the numerous species of Sea- anemones, that are so seldom seen by any one but the professed naturalist. But more prominent still was the anticipation that by this plan great facilities would be afforded for the study of marine animals, under circumstances not widely diverse from those of nature. If the curious forms that stand on the threshold, so to speak, of animal life, can be kept in a healthy state, under our eye, in vessels where they can be watched from day to day without being disturbed, and that for a sufficiently prolonged period to allow of the development of the various conditions of their existence, it seemed to me that much insight into the functions and habits of these creatures, into their embryology, metamorphoses, and other peculiarities, might be gained, which other- wise would either remain in obscurity, or be revealed only by the wayward " fortune of the hour." Nor have these expectations been wholly unrealized. 230 LIVING SEA-WEEDS. My experiments, though not yet entirely successful, and needing much more attention and time to com- plete them, have yet established the fact, that the balance can be maintained between the plant and the animal for a considerable period at least, without dis- turbance of the water ; while my vivaria have afforded me the means of many interesting researches, the details of which form the subject of these pages. The first thing to be done was to obtain the Algse in a growing state. As they have no proper roots, but are in general very closely attached to the solid rock, from which they cannot be torn without injury by laceration, I have always used a hammer and chisel to cut away a small portion of the rock itself, having ready a jar of sea- water into which I dropped the fragment with its living burden, exposing it as little as possible to the air. The red sea-weeds I have found most successful : the Fnci and Laminarice, besides being unwieldy and unattractive, discharge so copious a quantity of mucus as to thicken and vitiate the water. The Ulvm and Enter omorjjhce on the other hand are apt to lose their colour, take the appearance of wet silver-paper, or colourless mem- brane, and presently decay and slough from their attachments. The species that I have found most capable of being preserved in a living state are Chon- drus crispus, the Delesserice, and Iridea edulis. The last-named is the very best of all, and next to it is Delesseria sanguinea, for maintaining the purity of the water, while the colours and forms of these render them very beautiful objects in a vase of clear water, particularly when the light (as from a window) is DETAILS OF EXPERIMENT. 231 transmitted through their expanded fronds. Many of my friends, both scientific and unscientific, who have seen my vases of growing Algse at various times during the present year, both at Torquay and at this place, have expressed strong admiration of the beau- tiful and novel exhibition. I have not as yet been able to preserve the water to an indefinite period. Sometimes the experiment has quite failed, the plants decaying and the animals dying almost immediately ; but more commonly, the whole have been preserved in health for several weeks. The following are the particulars of the most success- ful of my efforts. On the 3rd of May I put into a deep cylindrical glass jar (a confectioner's show-glass) 10 inches deep by 6j inches wide, about three pints of sea-water, and some marine plants and animals. On the 28th of June following, I examined the contents of the jar as carefully as was practicable without emptying it, or needlessly disturbing them. It had remained uncovered on the tables in my study, or sometimes in the window, ever since, a little water only having once been added merely to supply the loss by evaporation. The water was perfectly clear and pure. A slight floccose yellow deposition had accumulated on the sides of the jar, but there was very little sediment on the bottom. I had taken no note of the plants or animals when I had put them in ; but as none of them had died, and none had been either abstracted or added, the following enumeration gives the original as well as then present contents. There were at this time in the jar the following 232 MARINE PLANTS AND ANIMALS. Algae, all in a growing state, and attached to the original fragments of rock : — Two tufts of Delesseria sanguinea, each with nume- rous leaves. Two oi Rhodymenia juhata, one small, the other a large tuft. A small Ptilota plumosa, growing with one of the last-named. A Chondrus ci'isjms, with An Ulva latissima, growing parasitically on one of its fronds. These seven plants had supplied fpr eight weeks the requisite oxygen for the following animals, which were at this time all alive and healthy : — Anthea cereus. Actinia hellis, a large specimen. hellis, a half- grown one. anyuicoma, large. anguicomay small. nivea. rosea. rosea, a small specimen. mesemhryanthemum, young. mesemhryanthemum, young, another variety. Crisia denticulata, a large tuft. Coryne ?, young. Pedicellina Belgica, two numerous colonies. Membranipora pilosa. Doris (hilineata ?^ J. Polycera 4.-lineata, very small. Phyllodoce lamelligera^ about 1 1 inches long. A coil of small Annelides. END OF THE EXPERIMENT. 233 Several BerpiilcB. Acarida. Entomostraca. Infusoria. Grantia nivea. And other smaller zoophytes and sponges which I could not identify. Soon after this examination I went on a journey, and did not return till the 7th of July. The weather had set in very hot : whether this, combined with the closeness of the room, had had any effect I do not know; but on my return I found the water beginning to be offensive, a sort of scum forming on the surface, and the animals evidently dying. Some were already dead, but most of the others recovered on being removed to fresh sea-water. This result, though it puts an end to my experiment at this time, I do not regard as conclusive against the hypothesis ; for of course animals are liable to death under any circum- stances, and the corrupting body of one of these in so limited a volume of water would soon prove fatal to others, even though there might be no lack of oxygen for respiration. It is possible that one of the large Actinim may have casually died during my absence, the timely removal of wliich might have averted the consequences to the others ; but this is only conjec- ture. Perhaps there was too large an amount of animal life in proportion to the vegetable ; but the maintenance of all these in health and activity for nearly nine weeks seems hardly to agree with such a supposition. Should these experiments be perfected, what would hinder our keeping collections of marine animals for 234 ANTICIPATIONS OF SUCCESS. observation and study, even in London and other inland cities ? Such a degree of success as I have attained would admit of so desirable a consummation, for even in London no great difficulty would be expe- rienced in having a jar of sea-water brought up once in a couple of months. I hope to see the lovely marine Algae too, that hitherto have been almost unknown except pressed between the leaves of a book, growing in their native health and beauty, and wav- ing their delicate translucent fronds, on the tables of our drawing-rooms and on the shelves of our con- servatories. It is a curious circumstance that experiments exactly parallel to these, founded on the same prin- ciples, have been simultaneously prosecuted with the same results by another gentleman, whose name is well known in the scientific world. Mr. Robert Warington of Apothecaries' Hall has now (Dec. 1852) at his residence in London a marine aquarium, with living Algae and Sea-anemones in a healthy condition. I find, on comparing notes, that Mr. Warington has precedence of me in instituting these experiments; but the particulars that I have above detailed of my own success were fully recorded before I had the slightest knowledge that the thought of such a project had ever crossed the mind of any person but myself. (See Appendix)' GRANTIA BOTRYOIDES. Highly curious are the needle-like crystals or spi- culae of flint or lime that enter into the composition of many of our Sponges ; and I would hardly wish to SPONGE-CRYSTALS. 235 give a greater treat to an intelligent but unscientific friend then by placing an atom of woolly stuff, scraped from the surface of a rock with a pin's point, beneath a good microscope with a rather high power on, and bidding him peep. I am sure you would have been charmed with the sight I have had this morning ; I was both surprised and delighted myself. Going carefully over, with a triple lens, a frond of Nitophyllum laceratum, that I obtained a day or two siuce at Hele, — the same frond, by the way, that had already yielded me the interesting Tuhulipora Jiahel- laris, — my eye was caught by what appeared to be the ends of the tubes of some larger species of the same genus projecting from over the edge of the sinuous and lacerated frond. I immediately transferred it to a glass cell, and applied it to the stage of the com- pound microscope with a power of 220 diameters. To my astonishment a mass of starry crystals met my view, entangled among each other almost as thick as they could lie, by scores, nay by hundreds. For a moment the eye was bewildered by the multitude of slender needle-like points crossing and recrossing in every possible direction ; but soon the curious spec- tacle began to take some kind of order ; the crystals were seen to be all of one form, though varying con- siderably in length and thickness ; they are three-rayed stars, diverging at an angle of 120 degrees : tbe rays, straight, slender needles, perfectly cylindrical except that they taper to a fine point, smooth and transparent as if made of glass, and highly refractive. These spiculae appear to me to be held together only by their mutual entanglement and interlacing ; their 236 STRUCTURE AND points, in the process of formation, (I had almost said, of crystallization J have shot through and among each other, so that it would be almost impossible to extract one from any point without either breaking off its rays, or tearing away a considerable portion of the whole surface. The rays shoot in the same plane, and in that plane the stars lie, not quite at random, as to their direction ; for the great majority have one point directed lengthwise from the mouth of the tube towards the base. There are not wanting however many, which point in the opposite direction; and several at intermediate angles. Of course, it requires but little divergence from the first named direction to produce the second; still, however, the prevalent order appears to be this. I cannot trace any fibrous or gelatinous or granular matter in which the spied se are set ; but beneath the layer formed by their interlacing points, there is a surface composed of round granules of transparent of pellucid matter, set as close as possible, which are plainly seen between the crossing needles. This ap- pears to be the interior lining of the tube, in fact the tube itself, around which the spiculse are arranged as a loose outer casing, giving firmness to the whole. I could not detect spiculae of any other form than the three-rayed stars; but several of these had one or more of their rays broken short; for from their com- position they are very brittle, as I have often proved in other species. The form of this specimen was so very irregular that but a poor idea can be conveyed of it by words : it may, however, be roughly described as an elliptical PlaU XY F.H.(Hyssedd.ttUth Jointed by}{ulJbn,ii-Mi$cHaIttn.. I £ CL^Wt:L.LmA LISTERI 3-6 GRANTI/-. BOTRYOIDES FORM OF A SPONGE. 237 mass, sending forth from one side several tubes, which divide or branch into others. The former portion lies adhering to the face of the sea-weed, but most of the tubes project from the edge of the frond. The longest tube is about J inch in length, and -^ inch in greatest diameter. The tubes terminate with plain transverse orifices, without any thickening : in one the margin is shghtly expanded, but this is evidently accidental. The spicules project from the edge their points in brist- ling array, as they do from the whole surface; and if it were an object of large size, one would say it was a formidable affair to take hold of with ungloved hands, I watched carefully for any trace of vortex or cur- rent ; but the particles and floating atoms in the vicinity of the apertures were perfectly still ; and I could not detect the least appearance of motion in the water. If there be any circulation, as Dr. Grant has satisfactorily shown to exist in the genus, it is pro- bably periodical. The accompanying figures may assist you to form a notion of the general appearance of this sponge, and of the peculiar structure or armature which I have described above. Fig. 3, Plate XV., represents the natural size of the entire mass ; Fig. 4 the same considerably magnified, attached to the surface of a piece of the sea-weed frond ; Fig. 5 represents the terminal portion of the largest tube, much more highly magnified, with the spiculse, and the granular surface beneath. The colour is dull pellucid white. The characters of the species appear to identify it with the Grantia hotryoides of naturalists, a sponge said to be rare in the south of England. 238 THE CROWNED SPONGE. GRANTIA CILIATA. On the same Alga I find a compound specimen of another pretty and interesting sponge of the same genus, Grantia ciliata. It is seated near the edge of the frond of the sea-weed, and sends up two little oval lobes with short necks, of which a very exact notion may be obtained by comparing them with the bottles in which soda-water is sold ; but they are not more than -J inch in height. The oval body is bristled over with slender simple spiculse, all pointed, some abruptly, others very gradually : they vary much in thickness and length, some being of excessive tenu- ity; they stand out in all directions from the sur- face, like the quills of a porcupine, but there is a slight tendency to point forward. Abundance of loose granulous or floccose matter is entangled among the spines, but this is probably accidental and uncon- nected with the organization of the sponge. The colour is dead-white ; and this I should suppose to be produced by the reflection of light from the thou- sands of shining spiculse, just as the whiteness of snow is merely the light reflected from a vast number of minute crystals of ice. The neck of this bottle-like sponge consists of a dense fringe of the ordinary spiculse, perhaps more slender than the average, which are set around the orifice like a crown, pointing forwards and a little outwards; so as to perfect the resemblance to a bottle-neck. I incline to think that the stream of water periodi- ITS RESTORATIVE POWER. 239 cally projected from this orifice may be the mould, if I may so say, upon which this coronal fringe is modelled, or at least a means of restoring its form if acciden- tally injured. I had a specimen at Torquay, much larger than this, globose in form and about half an inch in diameter. The neck of fringing spines had been accidentally crushed and distorted; but after it had lain for some days in a vessel of sea-water I was agreeably surprised to find it restored to its original regularity aad beauty. I cannot detect any jet of water from this specimen before me, but in that ob- tained at Torquay, (unless my memory greatly fails me,) T distinctly and repeatedly saw it. CHAPTER X. Respiration and Circulation— A Transparent Ascidia— Organs of Sight— Play of the Gills— Ciliary Waves— The Heart— Cours- ing of the Blood-globules — Reversal of the Current — "Na- ture," what is it r — The Praise of God— Luminosity of the Sea— A Charming Spectacle — Light-producing Zoophytes — Luminosity a Vital Function — Noctiluca, a luminous Animal- cule— Its Structure — Production of its Embryo — The Slender Coryne — D escription — Parasites . RESPIRATION AND CIRCULATION. To take a stolen peep into the Adyta of nature's mysteries, to surprise, as it were, life, carrying on its more secret and recondite functions, must always afford a peculiar pleasure to the reflecting and curious. This the microscope often allows us to do ; and when our eye is brought to the little dark orifice of the wonder- shewing tube, we may fancy that we are slyly peeping through the keyhole of Madam Nature's door, her laboratory door, where she is actually at work, con- cocting and fashioning those marvellous forms which constitute the world of living beings around us. I have been for the last two or three hours engaged in watching two of the most important vital functions, respiration and circulation, under circumstances of unusual felicity for the study. In looking over one i TRANSPARENT ASCIDIA. .241 of my vivaria^ a pan containing marine plants and animals that have been undisturbed for several weeks, I found, attached to a sea-weed, a tiny globule of jelly, not bigger than one of those little spherules wherewith homoeopathy supplants the jalaps and rhubarbs that our grandmothers believed in, and swallowed. It is an Ascidian mollusk, one of that tribe of humble animals that form the link by which the oyster is connected with the zoophyte ; and it appears to belong to that genus that the learned Savigny has named Clavellina. Transparent as the purest crystal, it needed only to be transferred in a drop of its native sea-water to the stage of the micros- cope, and the whole of its complex interior organism was revealed. The old sage's wish that man had a window in his breast, that we might see into him, was more than realised in this case : the whole surface of the little animal was one entire window ; its body was a crystal palace in miniature. (See Plate XV., fig. 1.) To form a correct notion of this tiny creature, imagine a membranous bag, about as large as a small pin's head, with an opening at the top and another very similar in one side ; the form neither globular nor cubical, but intermediate between these two, and rather flattened on two sides. One of the orifices admits water for respiration and food; the latter passes through a digestive system of some complexity, and is discharged through the side aperture. The digestive organs lie chiefly on one side, the opposite to that which forms the principal subject of my ex- amination : they are but dimly indicated in the accom- panying sketch, and I shall not further notice them. Y 242 THE EYES. The two orifices scarcely differ from each other in form or structure ; from what I know of them in other animals of this tribe, they are protrusile tubes of flesh, terminating abruptly, and fringed around the interior with short filaments or tentacles ; the exteriors of the tubes are furnished with minute oval specks of crimson, which are doubtless rudimentary eyes ; they look like uncut rubies or garnets, set in the transparent colour- less flesh, without any sockets ; and probably convey only the vague sensation of light, without definite vision. How many there are around each aperture I cannot say from observation, (probably eight on one and six on the other) for I have not seen either so far protruded as to be properly opened : each is slowly thrust out in a puckered state for a little way, slightly opened, then suddenly and forcibly drawn in, and tightly constricted. The whole animal is inclosed in a coating of loose shapeless jelly, that appears to be thrown off" from its surface, rather than to be an organic part of it ; still, at one corner of the bottom it forms a thick short foot-stalk, by which the creature is attached to the sea- weed ; and this foot- stalk evidently has an organic core into which there passes a vessel from the body of the animal. What first strikes the eye on looking at this little creature, and continues long to arrest the admiring gaze, is the respiratory organ in full play. The gills are large ; they form a flattened bag, nearly of the same shape as the animal itself, but a little smaller every way, which hangs down like a veil on one side of the general cavity, — the side nearest the eye as THE PLAY OF THE GILLS. 243 you look on the accompanying figure ; the digestive organs lying beyond and beneath it. The inner sur- face of this transparent sac is studded with rings of a long-oval figure, set side by side in four rows. These rings appear to consist of a slight elevation of the general membranous surface, so as to make little shallow cells, the whole edges of which are fringed with cilia, whose movements make waves that follow each other round the course in regular succession. In truth it is a beautiful sight to see forty or more of these oblong rings, all set round their interior with what look like the cogs on a watch-wheel, dark and distinct, running round and round with an even, mo- derately rapid, ceaseless motion. (See fig. 2). These black running figures, so like cogs and so well defined as they are, are merely an optical delusion ; they do not represent the cilia, but merely the waves which the cilia make ; the cilia themselves are exceedingly slender, and close-set hairs, as may be seen at the ends of the ovals, where a slight alteration of position pre- vents the waves from taking the tooth-like appearance. Sometimes one here and there of the ovals ceases to play, while the rest continue ; and now and then, the whole are suddenly arrested simultaneously as if by magic, and presently all start together again, which has a most charming efi'ect. But what struck me as singular was that while in general the ciliary wave ran in the same direction in the diff'erent ovals, there would be one here and there, in which the course was reversed ; and I think that the animal has the power of choosing the direction of the waves, of setting them going and of stopping them, individually as well as collectively. 244 THE HEART. I am afraid my attempt to describe these phenomena is but partially successful : I am sure it cannot convey to you any adequate idea of the spectacle itself. Have you ever gazed with interest on a compUcated piece of machinery in motion, such as is common in our large manufacturing houses ? If so, I dare say you have felt a sort of pleased bewilderment at the multi- tude of wheels and bands, rolling and circling in incessant play, yet with the most perfect steadiness and regularity. Something of that sort of impression was made on my mind by the sight of the respiratory organ of this tiny Ascidia, coupled as it was with another simultaneous, equally extensive system of movements, yet quite independent, and in nowise interfering with the former. I mean the circulation of the blood. At the very bottom of the interior, below the breathing sac, there is an oblong cavity, through whose centre there runs a long transparent vessel, formed of a delicate membrane, of the appearance of which I can give you a notion only by comparing it to a long bag pointed, but not closed, at either end, and then twisted in some unintelligible manner, so as to make three turns. This is the heart ; and within it are seen many minute colourless globules, floating freely in a subtle fluid ; this is the nutrient juice of the body, which we may, without much violence, designate the blood. Now see the circulation of this fluid. The membranous bag gives a spasmodic contraction at one end, and drives forward the globules contained there ; the contraction in an instant passes onward along the three twists of the heart, (the part behind THE BLOOD-CURRENTS. 245 expanding immediately as the action passes on) and the globules are forcibly expelled through the narrow but open extremity. Meanwliile, globules from around the other end have rushed in, as soon as that part resumed its usual width, which in turn are driven forward by a periodic repetition of the systole and diastole. The globules thus periodically driven forth from the heart now let us watch, and see what becomes of them. They do not appear to pass into any defined system of vessels that we may call arteries, but to find their way through the interstices of the various organs in the general cavity of the body. The greater number of globules pass immediately from the heart through a vessel into the short foot- stalk, where they accumulate in a large reservoir. But the rest pass up along the side of the body, which (in the aspect in which we are looking at it, and as it is represented in the figure) is the right. As they proceed, (by jerks of course, impelled by the contractions of the heart) some find their way into the space between the breathing surfaces, but how I can hardly say, if the breathing organ is indeed, as I had supposed, a sac ; — they certainly do slip in be- tween the rows of oval rings, and wind along down between the rings in irregular courses. Of course, I know that I am liable to mistake here, confounding, through the transparency of the organs, those globules which are outside the breathing sac with those that are within it ; still after the utmost care by focusing, I think I am sure the globules do pass as I have said ; besides those which wind along on the outside, or I 246 REVERSAL OF THE CURRENT. between the outer surface of the sac and the interior surface of the body; for many take this course, on both sides of the sac. But to return to the current which passes up the right side : arriving at the upper angle of the body, the stream turns off to the left abruptly, principally passing along a fold or groove in the exterior of the breathing sac, until it reaches the left side, down which it passes, and along the bottom, until it arrives at the entrance of the heart, and rushes in to fill the vacuum produced by the expansion of its walls after the periodic contraction. This is the perfect circle ; but the minor streams that had forked off sideways in the course, as those within the sac, for example, find their way to the entrance of the heart by shorter and more irregular courses. One or two things connected with this circulatory system are worthy of special notice. The first is that its direction is not constant but reversible. After watching this course follow^ed with regularity for perhaps a hundred pulsations or so, all of a sud- den, the heart ceased to beat, and all the globules rested in their circling course, that I had supposed incessant. Oh, ho ! said I, — " Thy stone, 0 Sisyphus, stands still, Ixion rests upon his wheel ; — " when, after a pause of two or three seconds, the pul- sation began again, but at the opposite end of the heart, and proceeded with perfect regularity, just as before, hut in the opposite direction. The globules, of course, obeyed the new impulse, entered at their PERIODS OF THE PULSATIONS. 247 former exit, and passed out at their former entrance, and performed the circulation in every respect the same as before, but in the reverse direction. Those globules that pass through the vessel into the foot-stalk appear to accumulate there as in a reser- voir, until the course is changed ; when they crowd into the heart again and perform their grand tour. Yet there is a measure of circulation here, for even in the connecting vessel one stream ascends from the reservoir into the body as the other (and principal one) descends into it from the heart ; and so, vice versa. I have spoken of these motions as being performed with regularity ; but this term must be understood with some qualification. The pulsations are not quite uniform, being sometimes more languid, sometimes more vigorous ; perhaps forty beats in a minute may be the average ; but I have counted sixty, and pre- sently after thirty ; I have counted twenty beats in one half-minute, and only fifteen in the next. The period during which one course continues is equally uncertain ; but about two minutes may be the usual I time. Sometimes the pulsation intermits for a second or so, and then goes on in the same direction ; and sometimes there is a curious variation in the heart's action, — a faint and then a strong beat, a faint and a strong one, and so alternately for some time. Several other points in the organization of this animal I might notice ; as the forked muscular bands that ramify from each aperture, the use of which is doubtless to perform the strong retractations of those — 248 NATURE — WHAT ? that hang down freely like so many walking-sticks into the cavity of the body from the oral orifice, to the number of ten at least, the nature and use of which organs I am not aware of. Wishing to see the course of the food into the stomach, I mingled indigo and carmine with the water ; but though I saw the particles of pigment continually taken in (not, as I had expected, by the oral aperture but by the anal), I could not trace them beyond the immediate vicinity of the orifice ; nor could I discern the least discoloration of the stomach or intestines by it. Indeed I could not detect any distinct canal or tube leading from either aperture to the stomach. The gelatinous coat, how- ever, which invests the whole animal, has apparently the power of imbibing water ; for on my lemoving it into clean water after two or three hours' immersion in the coloured, the whole of the investing coat was tinged with faint purple, which slowly disappeared. The admixture of pigment was probably injurious to its health, for both circulation and respiration were suspended, and were resumed only after some half- hour's immersion in the pure water. When I spoke just now of these wonderful mechan- isms and functions as " Nature's operations," I used the phrase in playfulness rather than in seriousness. For who indeed is Nature, and what are her attri- butes ? Is not the term one in which we take refage from the necessity of acknowledging the God of glory? " It has become customary," says the greatest of modern zoologists, to personify Nature, and to employ the name for that of its Author, out of re- THE WORK OF GOD. 249 sped." I fear it is rather out of shame than out of respect ; the potent dread of that terrific word "cantj" I much fear has effected the suhstitution. If we remember the word of Jehovah himself, " Whoso offereth praise glorifieth me" (Psalm 1, 23.), we shall not think it any mark of respect to conceal his name in speaking of his wondrous works, and to give the honour of their formation to a fabulous and imaginary power. No, this little ball of animated jelly is one of the inventions of the Almighty Son of God ; of Him who is the Brightness of God's glory, and the express Image of his Person, without whom there was not any thing made that was made. Its intricate ma- chinery, all its clock-work circles and revolutions, were originally the contrivance of his infinite wisdom, the workmanship of his matchless skill. And they are maintained in their beautiful order and precision, not by any inherent force implanted in them at first, but by his perpetual sustaining will. He, upholding all things by the word of his power, maintains the vital functions of this tiny globule, as truly and with as absolute a volition as He maintains the motions of the solar system, or they would instantly collapse into nothing. He made this also for his own glory ; and it is included in that extensive category, of which it is declared, " For his pleasure they are, and were created." Every word of the above description was penned, and my dramng was made, long before I was aware that this little animal had been already described and 250 A CHARMING SPECTACLE. figured by Mr. Lister in the Phil. Trans, for 1834. He assigned to it no name, hut it has since been called Perojjhora Listeri. Whatever points of agreement are found between the observations of that eminent naturalist and my own, are due to our having drawn from a common original : and I will not cancel this paper, since a concurrence of independent research is valuable in all science. LUMINOSITY OF THE SEA. I was coming down lately by the Steamer from Bristol to Ilfracombe in lovely summer weather. Night fell on us when approaching Lynmouth, and from thence to Ilfracombe, the sea, unruffled by a breeze, presented a phenomenon of no rare occurrence, indeed, to those who are much on the water, but of unusual splendour and beauty. It was the phospho- rescence of the luminous animalcules ; and though I have seen the same appearance in greater profusion and magnificence in other seas, I think I never saw it with more delight or admiration than here. Sparkles of brilliance were seen thickly studding the smooth surface, when intently looked at, though a careless observer would have overlooked them ; and as the vessel's bow sploughed up the water, and threw ofi" the liquid furrow on each side, brighter specks were left adhering to the dark planks, as the water fell off", and shone brilliantly until the next plunge w^ashed them away. The foaming wash of the furrow itself was turbid with milky light, in which glowed spangles of intense brightness. But the most beautiful eff'ect of ILLUMINATED WAVES. 251 the -whole, by far, and what was novel to me, was pro- duced by the projecting paddle-boxes. Each of these drove up from before its broad front, a little wave continually prolonging itself, which presently curled over outwardly with a glassy edge, and broke. It was from this curling and breaking edge, here and there, not in every part, that there gleamed up a bluish light of the most vivid lustre, so intense that T could almost read the small print of a book that I held up over the gangway. The luminous animals evidently ran in shoals, unequally distributed ; for sometimes many rods would be passed, in which none or scarcely any light was evolved, then it would appear and continue for perhaps an equal space. The waves formed by the summits ©f the swells behind the ship continued to break, and were visible for a long way behind, as a succession of luminous spots ; and occa- sionally one would appear in the distant darkness, after the intermediate one had ceased, bearing no small resemblance, as some one on board observed, to a ship showing a light by way of signal. The scene recalled the graphic lines of Sir Walter Scott : — Awak'd before the rushing prow. The mimic fires of ocean glow. Those lightnings of the wave ; Wild sparkles crest the broken tides, And flashing round, the vessel's sides With elfish lustre lave ; While far behind, their livid light To the dark billows of the night A blooming splendour gave. Lord op the Isles, i. 21. While on this subject I will mention the charming 252 LIVING SELF-LIGHTED LAMPS. spectacle presented by some of the Sertularian Zoo- phytes, in the dark. Other naturalists, as Professor Forbes, Mr. Hassal, and Mr. Landsborough, have observed it before me, and it was the admiration expressed by them at the sight that set me upon witnessing it for myself. I had a frond of Laminaria digitata, on whose smooth surface a populous colony of that delicate zoophyte Laomedea geniculata had established itself. I had put the frond into a vessel of water as it came out of the sea, and the polypes were now in the highest health and vigour in a large vase in my study. After nightfall I Avent into the room, in the dark, and taking a slender stick struck the frond and waved it to and fro. Instantly one and another of the polypes lighted up, lamp after lamp rapidly seemed to catch the flame, until in a second or two every stalk bore several tiny but brilliant stars, while from the regular manner in which the stalks were disposed along the lines of the creeping stem, as before described, (See p. 90 ante), the spectacle bore a resemblance sufficiently striking to the illumination of a city ; or rather to the gas-jets of some figure of a crown or V. R., adorning the house of a loyal citizen on a gala-night ; the more because of the momentary extinction and relighting of the flames here and there, and the manner in which the successive ignition ap- peared to run rapidly from part to part. It has been a question whether the luminosity of these polypes is a vital function, or only the result of death and decomposition. I agree with Mr. Hassal in thinking it attendant, if not dependent, upon vita- lity. The colony of Laomedea in the preceding LUMINOUS ANIMALCULE. 258 experiment was still attached to its sea-weed, and this had not been washed up on the beach, but was growing in its native tide-pool when I plucked it ; it had never been out of water a single minute, and the polypes were in high health and activity both be- fore and after the observation of their luminosity. LUMINOUS ANIMALCULE. Some weeks afterwards I had an opportunity of becoming acquainted with a minute animal to which a great portion of the luminousness of the sea is attributed. One of my large glass vases of sea-water, I had observed to become suddenly luminous at night on being tapped with the finger ; the light was in minute but brilliant sparks, chiefly at various points on the surface of the water, and around its edge. It is possible, however that the vibration of the glass produced a more powerful effect on the animals in contact with it, than on those in the water at some distance. After the first tap or two, the light was not again produced, and no jarring or shaking of the ves- sel would renew it. I determined to examine the water carefully in the morning. In the mean time, however, in the course of examining some polypes from another vessel, I unin- tentionally isolated a minute globule of jelly, which I presently recognized as Noctiluca miliaris. Kemem- bering that this animalcule is highly luminous, I immediately suspected that the luminous points of my large vase might be owing to the presence of this same little creature. I accordingly set the jar in the z 254 THE NOCTILUCA. window between my eye and the light, and was not long in discovering, without the aid of a lens, a goodly number of the tiny globules swimming about in various directions. They swam with an even glid- ing motion, much resembling that of the Volvox glohator of our fresh water pools, but without any revolution that I could perceive. They appeared social, congregating into little groups, of half a dozen or more together ; and when at rest affected the sur- face and the side of the glass next the light. A jar or shake of the vessel sent them down from the surface. It was not very easy to catch sight of them, nor to keep them in view when seen, owing rather to their extreme delicacy and colourless transparency than to their minuteness. They were in fact distinctly appre- ciable by the naked eye, for they measured from -^ th to -^ th of an inch in diameter. With a power of 220, each was seen to be a globose sac of gelatinous substance, ordinarily smooth and distended, but occasionally roughened with fine wrinklings in the surface. At one side there is a sort of infolding, exactly like that of a peach or plum (see figs. 6 and 8, Plate XVI.) ; and this if viewed directly sidewise appears to be a deep furrow, from which the two rounded sides recede, with two minor lobes between them. (See fig. 7). From the bottom of the furrow springs a small slender proboscis of a thickened ribbon-form, very narrow, and about as long as two-thirds the diameter of the globe, with the tip slightly swollen. (Fig. 11). It is frequently twisted with one curl, but is moved sluggishly in ni GMtf