a i ° a i f a 5 ¥ ‘ , : ~_ 4 eda ea at “yt ‘ eo ® H ¥ b ~ ri é . “! ' < , a airy - > 1. NUY. 1gU2 Guest sstesseesssoseeoneeeee Lith doth pth rte tads hts ed Ter 2 aA ES f BRIGHTON AND HOVE 2 Ratural history s Philosophical Society. CIS CIN IA ID CLS CIS OIG IIS AIG AIA MIS HID O19 19 OID Os AI M18 1d HID GIS Hid IO Me ID OO GO G10 WO MO a 3) ABSTRACTS OF PAPERS . yy z READ BEFORE THE SOCIETY, 6 D ‘: nN ‘TOGETHER WITH (THE ANNUAL REPORT & FOR THE RAMs OD wid nls O18 OO | ONG AB oo He ee eee eo ee ee Pe ee Oa a Ry YEAR ENDING JUNE 11th, 1902. Brighton. 1902. WE ee Oo ON Ne NNR SD BRIGHTON AND HOVE Natural bistorys Philosophical Society. —_— = DE Goes ABSTRACTS OF PAPERS READ BEFORE THE SOCIETY, TOGETHER WITH THE ANNUAL REPORT FOR THE YEAR ENDING JUNE 11th, 1902. INDE Zs: OFFICERS OF THE SOCIETY... Fi ce ve ox nan Excavatinc 1x Eoypr anp its Resutts—Proressor FLINDERS Petrie, F.R.S., &e. ... oat i = = a: Ponar Prosuems: Arctic anp Antarctic—Mr. MILier Curisty, F.G.5. sae Bus “= A = re British Veceraste Gatts—Mr. Epwarp T. Connoxp, F.E.S. Insect ARcnitects AND Encineers—Mk. Frep Enoct, F.G.5., &e. Tae Zones or THE CHALK NEAR Bricutron—Mr. WILiiaM McPuersoy, F.G.S. ... om me ; aide oe Some Prenistoric Camping GRounpS NEAR BricHTon— Mr. Hersert §. Toms see ae 42 ae ar Revort or Councin Aes a 2 = aes zee Lrprarian’s Report i vA if ae a i MerroroLocy oF BricHToN on ee Va woe = TREASURER’s AccoUNT = ee 5a nok af. bse Boranica Report... S6E be Pee es ae ie AnnuaL General MEETING see wes dea Be a SocreTmes AssoclaTED oe nes bets ee of: sae List or Mempers ... 84:4 | Leastwidth ... =. ple Average width .. ... 40:4] Average width «2 O90 So far as is known at present, Marsupites is better repre- sented in England than in any other part of the Cretaceous sea, and it is only found in a small vertical horizon in that sea. It has now a very small geographical range, being found only in fragments in France and in Algeria, and not in America, which is very surprising when we consider the large development in that country of the lower part of the zone Uintacrinus. There is little doubt it will yet be found in the United States, India, and Palestine. Among the characteristic fossils of the zone are found Echinocorys vulgaris, of a helmet shape, hence the popular name of Shepherd’s helmet. The zone can be fairly well recognised Dr: ” Bather. a ee ee a ae ee se ————————————— UL LC eee 33 by this fossil, and, equally so on the coast, by the presence of Echinoconus conicus. Whenever you find it you may be certain you are near Marsupites, at least, on the coast. Lima hopert is found of a large and fine form, but, owing to the delicacy of the shell, difficult to separate from the matrix. Spondylus spinosus here attains its maximum size. They are quite common, wih the spines well preserved, but are very fragile, and great care is required in cleaning. If the chalk is allowed to dry, the spines are more easily saved. Ostrea wegmanniana (D’Orbigny) was discovered, for the first time in England, in 1899, in this zone, by the writer. The original and finest block, for they are gregarious, is among the collection to illustrate this paper. It ranges from the Uintacrinus beds at the Black Rock to the base of the Actinocamax (Belemnitella) quadratus zone, near Rottingdean. The most likely place to find specimens is in the inter-tidal chalk, one hundred yards east of the Pumping Station. They are well known in the chalk of France and were found many years ago by Mr. Griffith and Dr. Rowe, but not identified by the Geological Survey, Jermyn Street. This zone has only one Ammonite, and a very remark- able one it is (Amuinonites leptophyllus), popularly known as Landscapes, a good description of their sutures, and sometimes Carpet Slippers, which is not so appropriate. It goes from Uintacrinus to the middle of the Actinocamax zone beyond Rottingdean. There is a fair specimen at present exposed on the inter-tidal chalk near Roedean Cottage, 4 feet 3 inches in diameter, in circumference 12 feet 9 inches. They are quite common, but generally much worn. They are not found in France. This is an interesting fossil, the last species of the race, and it is curious how it should have become extinct on attaining this enormous size. There is no evidence from the chalk structure to exhibit any violent change in the condition of life to suddenly destroy this genus, which survived numerous and sudden changes throughout the Lias, passing above the Gault, in very different conditions to the chalk, in diminishing numbers, and finally disappears in the Actinocamax (Bel.) quadratus zone, long before the chalk deposits ceased to be laid down. There is a fine specimen in the British Museum, taken from the neighbourhood of Rottingdean. Cyphosoma kenigi, one of the beautiful fossils of the zone, is fairly common in fragments, but specimens in good condition are rare. The lower part of the zone, marked No. 4 on the diagram, is the sub-zone of Uintacrinus. This fossil was a free swimming crinoid. The first specimens were collected by Professor Marsh in 1870, from the Uintah Mountain, hence the name. A fine block from Kansas in the British Museum, with perfect specimens, led to a search in this country, with the curious result that plates and ossicles were found in Dr. 34 Rowe’s collection,—undescribed for twenty years. They were also found in the Willett collection in the Brighton Museum, described as Marsupites. In 1899, directed to search in the neighbourhood of the Black Rock, by Dr. Rowe and Mr Sherborn, I was successful in finding a few plates and ossicles on the inter-tidal chalk, the only exposure on the coast. They are not found beyond five hundred yards to the east of the steps at the Coombe Rock, where Marsupites begin to be sparingly found. Making an examination of the inland exposures this winter, I found an exposure of the zone of fifty feet in the Kemp Town Railway Station Quarry. It con- tains single plates and many ossicles, accompanied by many fragments of Bourgeticrinus. This is the only other exposure of Uintacrinus in the Brighton district and also the best. It can be traced from the base of the west side of the quarry, gradually rising until it joins the Marsupites beds at the top of the tunnel, a height of 85 feet. The base of the tunnel is the zone of Micraster cor-anguinum. This quarry is the only exposure of Marsupites, Uintacrinus and Micraster cor- anguinum that can be studied in situ in the inland exposures, as only a few connected plates of Uintacrinus have been found in Britain. I give some measurements and description from Professor Beecher* of perfect specimens found on a slab in Kansas. ‘‘ Notwithstanding the considerable geographic range, the horizon appears to be nearly constant. The slab occupies 27 square feet of surface. In the area are calyces of 220 individuals. Occasionally a specimen measures 70™™ across the diameter. A flattened condition is about 60™™ minimum specimen. The arm branches can seldom be traced more than 10mm _ from the calyx, though separate ones extend quite five times that distance from the surface. The presence of several small Ostrea larva tends to show that the water was of a moderate depth. Nearly all the specimens of Uintacrinus, as well as the limestone layers containing them, are of a light buff colour.” I have found Ostrea larva in the Uintacrinus beds at the Black Rock. It is now in the British Museum. This is the lowest zone that it has been yet found in England. This co- relation of Uintacrinus and Ostrea larva from Western Kansas in America to Brighton, a distance of six thousand miles, gives an enormous area to the nearly contemporaneous deposits in the cretaceous sea. The absence of Marsupites in America may possibly have been caused by the land rising in America and sinking in England. With Uintacrinus is associated, at the Black Rock and Kemp Town quarry, two fossils of an equally restricted vertical range. Actinocamaw verus, which is not * American Journal of Science (1900). SE eee 35 found above the Uintacrinus beds, is small, without an alveolar cavity. It is a rather rare fossil. The other, Terebratulina rowet, goes up to the base of the Marsupites beds. It is very small, and, like Terebratulina gracilis, rather gregarious. Kingena lima is found, but is rather a rare fossil in this zone. Oreaster ocellata, a very rare Asteroid, I found at the eastern end of the zone in the inter-tidal chalk near Roedean Cottage. There is here a bed of much crushed crinoids, and should be carefully examined for good specimens. The JLchinocorys vulgaris of this zone are very characteristic. They are of great size compared with the zones above, and the upper surface is nearly flat in many specimens. The discovery of Uintacrinus in Kemp Town Railway quarry was quite unexpected. The distance from the Black Rock is about a mile, and the elevation at the base 200 feet, and Uintacrinus rises in quarry to 250 feet; so that we have in that distance the horizon above the sea level raised 250 feet. The denudation between the Golf House and Kemp Town was narrow near the coast, for we find at the Brighton and Preston Railway Stations the highest zones of the Sussex chalk Actinocamax ( Bel.) quadratus. At the end of the Paper, an attempt will be made to explain this gap and the extensive inland denudations. The next zone 5, Micraster cor-anguinun, is found at the base of the cliffs east of the Pumping Station. It overlaps a considerable part of the Marsupites beds above, and Uintacrinus under. It is well exposed at the base of both sides of the Kemp Town quarry. Lhynchonella plicatilis is common, but more abundant and of a larger size in the zone above. Good examples of Terebratulina striata are found here. This fossil is found in all the zones of the chalk and is found living at great depths in the present seas,—at 600 feet in the Hebrides and 7,000 feet off Japan. Micraster cor-anguinum is also found in the Railway cutting at Dyke Station,—-an elevation of 500 feet. It is also found in a small hillside quarry at Norton Top,—elevation 600 feet. The zone in this district is every- where poorly exposed. Zone 6, Micraster cor-testudinarium.—This is a new dis- covery of the zone in this district. The only exposure, and it is a very slender one, is on the hill road, half a mile south of Balsdean Farm, towards Rottingdean. The exposure is so small that few examples have been found. One specimen has been described by Dr. Rowe as ‘‘an absolutely typical one.” It will be found among the specimens illustrating the zone. A few associated fossils are Terebratula carnea, Terebratula semt- globosa, Rhynchonella plicatilis. Epiaster gibbus may belong to this zone, but it was not found in siti. Zone 7.—Holaster planus (middle Chalk) is found at the top of Bevendean Pit, a small exposure one-sixth of a mile 36 north-east from Bevendean Farm. 4Holaster placenta is also found, and Micraster praecursor. They may represent the junction with the next zone. Zone 8.—Terebratulina gracilis is much more satisfactorily exposed than the last three zones. Hitherto unknown in this district, and found within three miles of Brighton, and at an elevation of 400 feet above the highest zone on the coast, the two principal exposures are at Saddlescombe Quarry, 500 feet above sea level, and at a place named Falmer Bottom on the Gin. map. The exposure at Falmer Bottom begins at the 450 level, on south side, and is found in chalk turned up by the plough, in an attempt to take in a few extra yards of the crest of the hill. I have proved the zone also by digging into the hill side, and found sixteen in an hour. At Saddlescombe the exposure is large, showing sixty feet of vertical chalk. The name-fossil is abundant with a few Rhynchonella cuviert. It is found more sparingly in Bevendean, Iford, Balsdean, and Norton Pit, under Falmer Bottom, under the junction with the zone. Terebratulina gracilis is one of the most delicate and beautiful fossils found in the chalk, or any other formation. It is very small, with one of the valves flat and fan-shaped. The other valve is slightly raised. It is difficult to find, unless the mealy weathering of the chalk has been washed off by heavy rains. The associated fossils of this zone are widely different from those of the zones above. One of the most striking changes is the absence of Lchinocorys vulgaris (Ananchytes ovata), so predominant in the upper zones of the chalk. The presence of small Ammonites, altogether absent in the higher zones, the absence of Ventriculites, and the rather more frequent appearance of Univalves, all indicate a shallower sea. Discoidea dixoni is the only echinus, along with a form of Echinoconus conicus, that are found in this zone. The former is not so common, perhaps, owing to the small exposure. Inoceramus labiatus is found abundantly. The other charac- teristic fossils are Cyphosoma corallare, two undetermined species of Inoceramus, Terebratula carnea, Terebratula semi- globosa, Tooth of Enchodus Lewesiensis, and many scales of Beryx, a fish of much interest, as it still survives in the deep waters of the present seas. Zone 9.—Rhynchonella cuvieri. A marked change in the character of the chalk is found in this zone. It is hard, of a darker colour, with dark nodules and streaks, indicating a still shallower water during the deposit. This zone is repre- sented in two small pits near Bevendean Farm and at Norton Farm, distant from the former two and three quarter miles in an easterly direction, and about the same elevation 250 feet above the sea level; also in the lower part of Saddlescombe Pit. The name-fossil is a small Rhynchonella. It is common in 4 : : . 37 the pits named above, especially in Bevendean. It is not usually gregarious, but here it is more so than in Devonshire. There is another distinction, the zone is without flints in Devonshire ; in Beyendean they are quite common. The presence or absence of flints is not a safe guide throughout a zone. In the Marsupites zone in Kent flints are almosi absent, while in Brighton, near Roedean Cottage, on the sea bed, flints form nearly one-third of the area. Small Ammo- nites are found at the middle of Falmer Bottom, their last appearance. They are more common in Norton pit, and still more so in Balsdean Pit, perhaps owing to the larger exposure. They are always in casts, and generally much crushed. The species of the specimens exhibited have not yet been determined. Pleurotomaria perspectiva is the only univalve found in Balsdean pit. Hehinoconus conicus occurs here in a form peculiar to the zone; it is higher and more conical than the form in the Marsupites Zone. The absence of Echinoconus sub- rotundus indicates that the exposures are near to the top of the zone, coupled with the presence of Holaster planus at the top of the small Bevendean pit. Spondylus spinosus is present in Balsdean and Bevendean pits. It is much smaller than the form found in the Marsupites Zone. Two specimens from the same pit have not yet been identified ; they may be Spondylus (striata). Terebratulina striata appears in Norton pit. It is found everywhere in the chalk. Inoceramus labiatus is found in Falmer Bottom, Norton pit, Balsdean, and Bevendean. From its great abundance, mostly in casts, it is an excellent guide that you are either in the zone above or this. There are several species of Jnocerami in Balsdean and Norton pits. Inoceramus cuvieri can be recognised, but the others, being mostly casts, are difficult to determine. Ostrea hippopodium is found in Balsdean; it is more common in the upper zones. Terebratula carnea and Terebratula semi-globosa are very abundant in Bevendean and Balsdean pits. Zone 10, Grey Chalk.—A very small exposure on the Lewes Road, north of the Dyke near Fulking represents the upper part of the zone. The name-fossil Holaster sub-globosus and Terebratulina carnea were found; the original Holaster sub-globosus was so damaged that I will have to place alongside a fine specimen from the grey chalk of Folkestone. Summary of Results. The discovery of a Zone of Uintacrinus and Micraster cor- anguinum in Kemp Town Quarry and the Dyke, of Micraster cor- testudinarium on the Balsdean Road, of Holaster planus at the top of Bevendean Pit, of Terebratulina yracilis in Saddlescombe, 38 Falmer Bottom, Bevendean, Norton and Balsdean pits, of Rhynchonella cuvieri in Bevendean, Norton and Balsdean pit, and of the Grey Chalk at Fulking, north of the Dyke Railway Station. The appearance and disappearance of forms of life is well defined, and the lesson is taught in all the Zones,—adaptation to altered conditions, or extinction, never to reappear in the same form. THURSDAY, MAY 8ru. Some Prebistoric Camping Grounds near Brighton, BY Mr. HERBERT S. TOMS. OTH previously to and during my six years’ residence in Brighton, my favourite recreation has lain in scouring the country, at every available opportunity, in search of flint imple- ments and such other material as enables the archeologist to construct, by synthetic and comparative methods, a fairly accurate account of what were the crafts, arts, and customs of the prehistoric inhabitants of Great Britain. Of my many rambles in the fair County of Sussex, which have been principally confined to the Downs, and of the success or disappointment attending them, I do not propose to give a detailed account. The object of the present paper is to lay before you, in the nature of a preliminary report, one result of my local “flint- hunting” expeditions during the last twelve months. Quite frequently the remark has been made to me that the flint tools of prehistoric men lie scattered broadcast over the surface of the Downs, and in such abundance as to be easily found if one takes the trouble to look for them. One of my friends even went so far as to inform me, in good humour, that he knew of a field where a waggonload might he obtained, and coupled it with the suggestion that my next tramp should be made to the site of this happy hunting-ground. ‘This view of the subject may be a popular one; but, judging from my own 39 experience, and that of other enthusiastic collectors, I must emphatically state such a view to be erroneous and most mis- leading. Before coming to Brighton I had had sufficient training to enable me to detect any flint implement which lay in my path during a walk across the fields or over the hills, and I felt fully qualified to commence similar expeditions in the neighbourhood of Brighton. But, surprising as it now seems to me, my first two years’ search in this district were very unproductive ones ; for not one flint axe rewarded my repeated rambles, and, of the few smaller flint implements I came across, none were of such workmanship or presentable appearance as to merit a place in the Museum collection. The result of these disappointments was an extension of my field of explorations to more likely localities. Of these Cissbury comes first on the list. In the entrenchment itself I discovered little of any value. The best hunting-grounds, I found, were the cultivated patches of Downland in its vicinity ; and, in carefully and methodically working these, I met with much success. On my first visit I turned up no less than a dozen flint axes, three only of which were perfect specimens. During another visit I was rewarded with an axe, a gouge, a dagger, and a large boring instrument, the three latter being rare types, hitherto unrepresented in our local collection of flint implements. ‘An extended search in this district led to the observation that the axes do of lie scattered broadcast over the hills, but that they are confined to certain spots, and that, where one finds a single specimen, several others may generally be revealed by a diligent search. This fact also led me both to cultivate a minute observance of any evidence which would enable me to trace such productive sites, and to the endeavour of fathoming the reason why they should occur in this manner. Such an observance was attended by the discovery that other prehistoric remains invariably and abundantly occur on these spots in close association with the flint axes ; and, as these associated remains have an important bearing on the subject of my paper, I now propose to deal with them in detail. For this purpose I have selected typical examples from the various sites on the Downs. As the initiated will observe, they consist of flint flakes ; flint cores: hammer-stones ; the smaller flint implements, such as scrapers, needle-makers, arrow-shafters, and borers ; and the calcined flints with which prehistoric man boiled water and cooked his food The flint flakes are by far the most abundant, occurring, as they do, by the thousand. These were either chips struck from a flint by primitive man to serve for cutting or scraping purposes, or the chips produced during the fabrication of some flint tool, such as an axe. As the ordinary observer experiences the 40 utmost difficulty in distinguishing these artificial chips of flint from natural splinters, it is necessary for me to explain, at this point, how such artificial fractures differ from natural ones ; and, for this purpose, I shall have recourse to the most primitive method of producing a flint flake. “Let us suppose that the primitive savage required a cutting instrument, and that among the flints near at hand there were none with such naturally sharp edges as would fulfil his purpose. By experiment and research we know, in such a case, he selected from the flints near at hand one about the size of his fist, to serve as a hammer, and another of a convenient size from which to strike chips or flakes, which would also serve for cutting purposes. If the flint to be chipped was small, he held it in his hand to undergo the operation. If too large to be held comfort- ably in the hand, it was probably rested on the thigh: then, with a well-directed blow from his hammer-stone, he struck a chip from the other flint. Let us now examine such a chip or flake, as it is technically termed. We shall first observe that it has a flat top upon which the full force of the hammer-stone was concen- trated. Directly underneath this flat top, and on the smooth side of the flake, which fits into the hollow from which it was struck, we observe a little rounded protuberence ; this is known as the bulb, or cone, of percussion. In a typical flake we then notice the existence of approximately concentric rays covering the flat surface of the flake on the same side as the bulb of percussion. In some instances these rays and the bulb of percussion are so pronounced as to give the flake the appearance of a fossil shell cast in flint ; the bulb of percussion simulating the umbo or top of the shell, and the concentric rays the divisions of its periodic growth. To this reremblance is due the coining of the term * conchoidal,” or shelly fracture, now applied to the artificial to distinguish it from natural fractures which lack these character- istics. When we examine the hollow from which the flake was detached, we naturally observe the above characteristics in a reversed form. ‘This hollow is known as a facet. “To proceed a stage further, let us assume our flint chipper has struck flake after flake from the same flint till none of its original surface remains, the whole being covered with the facets of the detached flakes. It is obvious that the next flake taken off will bear the imprint of one or more of the facets from which the previous flakes were removed. To produce a good symmetrical flake from such a core of flint, the blow should be delivered directly above the divisional line of two adjoining facets, the result will then be that this line will form a ridge running down the middle of the detached flake. “Flaking with the hammer-stone, as described above, is a knack not very readily acquired ; and, where the production of long, symmetrical flakes is concerned, it is extremely difficult, — : sel ett ee te el ol — J 41 necessitating, as it does, long, careful, and thoughtful practice, To obtain such a result as a flint flake, the flint to be chipped should be retained, by some means or other, in an elastic medium—an elastic medium, however, is not a sine gud non, although it is preferable—and the blow of the hammer-stone must be sharp and delivered with precision. “Lord Avebury has gone so far as to state that ‘a flint flake ts to the antiquary as sure a trace of man as the footprint in the sand was to Robinson Crusoe”* My observations, how- ever, enable me to say that this statement requires some modification. One would infer from such a remark that the production of a conchoidal fracture by any natural agency is a sheer impossibility. Such, though, is not the case. There are many ways in which flakes can be and are produced by natural causes where the underlying principle of flaking practically amounts to the same as the artificial process described above. One local instance will suffice in explanation: Maybe many of you have walked from Brighton to Rottingdean along the shore. If so you will have observed that wherever the rough seas had washed away the shingle between high and low water marks, it had laid bare the chalk floor. You will agree with me, too, that this uneven surface requires some circumspection to traverse in safety; for the water left in the depressions seems to exert a great attraction over one’s feet, and, in the endeavour to avoid these poois, the chances are manifold that one’s ankles or shins become barked by the flint boulders projecting out of the chalk floor. Now it is to these boulders, held firmly in the chalky matrix, that I wish to draw your attention. Our first and lively impression is that they are very abundant; our second impression, on closer inspection, is that many of them dis- tinctly show conchoidal facets. Now, after I have emphatically stated that the knack of chipping flakes from a flint is not easily acquired, you will ask how the flaking on these rough boulders was produced. The answer is simple. It was effected by natural attrition with other loose boulders and pebbles, the motive power being supplied by the waves of the rough seas. By chance it happened that some few of the boulders and pebbles, swept to and fro by the waves, struck the projecting flint at the correct angle and with the proper force, and then off flew a flake. Such chips, produced by the blind forces of nature, are irregular, unsymmetrical, and generally of small size, and a little practice enables one to distinguish with accuracy between this natural flaking and the comparatively beautiful and thoughtful workmanship of the hand of man. Whenever we come across a symmetrical or well-formed flake which exhibits the portions of at least two facets on its outer face, then, and then * Prehistoric Times, page 87. 42 only, I think we may dogmatically assert that such a flake is, in ninety-nine cases out of a hundred, ‘as sure a trace of man as the footprint in the sand was to Robinson Crusoe.’”* As the majority of the flakes found in association with the axes on the productive spots are well-formed and show evidence of skilled workmanship, we may conclude they were produced by primitive man in fashioning his flint tools, or, as I have already mentioned, for use as cutting or scraping instruments. Before quitting these introductory remarks on artificial flint chips, there is yet another and an important characteristic exhibited by many of them to which I am tempted to draw your attention. In examining a collection of prehistoric flakes, one often observes specimens with a facet on the bulb of per- cussion (fig. 12) caused by the removal of a more or less minute flake. In scientific terminology, this little facet is known as an éraillure. It has recently been described as the secondary hall- mark of a man-made flakey, and has hitherto been maintained as a valuable criterion by the champions of the authenticity of the so-called Eolithic or Plateau implements and of the rude tools of early Paleolithic times. Mr. W. J. Lewis Abbott, F.G.S., has explained the cause of an éraillure to himself in the following manner:—‘“In an ordinary blow one just brings the hammer upon the object, and is regardless of the rebound, which generally initiates the return motion, and thus is unrecognised ; but, when one wants to hit in a certain place, in a certain definite direction, there is an unconscious concentration of all muscular power to make the blow fall at that particular spot, and even keep the hammer there, and this voluntary muscular opposition offered to the uprise of the striker forces it back, occasioning a secondary but light blow. This can also be well seen and heard when one attempts to drive a nail in an awkward place by a series of slow, deliberate blows, each of which will be followed by a second involuntary tap, _ It is this tap which removes the small flake from the bulb of per- cussion, and produces the well-known évai//ure. This, therefore, is characteristic of an intentionally directed blow. Upon sub- mitting a specimen to Mr. J. Allen Brown, F.G.S., he at once noticed this inestimable hall-mark. All experiments thus point to the éraz//ure as being altogether more important than a mere bulb of percussion, and, so far as we are aware, may be taken as a proof of man’s work, as it can easily be seen among flakes inten- tionally removed from a block, but so far as is known under no other circumstances.” { * Experiments in a Lost Art, by H. S. Toms. + The Authenticity of the Plateau Implements, by W. J. Lewis Abkott, F.G.S., Natural Science, vol. xii., page 114. + Worked Flints from the Cromer Forest Bed, by W. J. Lewis Abbott, F.G.S., Natural Science, vol. x., pages 92-93. tt i Implements from Prehistoric Camping Grounds. Figs. 1-4, scrapers; fig. 5, combined needlemaker and scraper; figs. 6-8, needlemakers; figs. 9-11, arrowshafters ; fig. 12, flake showing éraillure == Ll 43 Quite recently I have carried out a long series of flaking experiments in the endeavour to verify, if possible, Mr. Lewis Abbott’s view with regard to the production of an érazd/ure, and as to its being such an inestimable hall-mark of man’s handiwork ; but, so far, my efforts in this respect have led me to a very different conclusion. In the first instance, my experiments have convinced me that, to produce a flake, the rebounding blow, which has been so harped upon, is not an absolute necessity. I have intentionally delivered blows at such angles as to render impossible a rebound or a re-striking of the flint with the hammer-stone, and, invari- ably, such a single blow has successfully detached a respectable flake ; and, what is of far more importance, many of the flakes so struck off by single blows have exhibited the characteristic éraillure. This, therefore, entirely negatives Mr. Lewis Abbott’s theoretical explanation as to its being due to the involuntary rebounding tap. Occasionally I have succeeded with a single blow in detaching a flake with two or more éraillures ; and, after careful consideration, to my mind, the most feasible explanation of their production lies in the uneven surface of the hammer- stone at the point of impact. At any rate, the existence of an éraillure on a flake cannot, in my opinion, be considered as characteristic of an intentionally delivered blow. I have instanced above the natural production of conchvidal fractures, and, as my experiments have shown an érai//ure can be and is often caused by a single blow, I see no reason why natural flakes should not: bear the same characteristic. Reverting once more to the subject of my paper, I will now direct your attention to the flint cores ‘These are merely blocks of flint, generally of small size, covered with the facets of artificially detached flakes. They represent the residuum of large flint boulders from which prehistoric man chipped flakes of convenient sizes to make into cutting and scraping instruments. These also occur in abundance, and were evidently cast aside as useless when no flakes of the desired shape and size could be struck from them. It has been suggested that some of the smaller cores were used as -sling-stones; but this is merely conjecture. As a rule they are not of any uniform size or shape, and the existence of shore pebbles with them points tu the inference that the latter would by preference have been used as sling-stones if, indeed, the sling were in use in this part of the country in prehistoric times. The flints which prehistoric man used as hammer-stones in flaking next claim our attention. These, too, are by no means uncommon, and are invariably turned up wherever other evidence of primitive man abounds. — They are, as you will observe in the examples exhibited, generally round flints—occasionally shore pebbles— which rarely exceed the size of one’s fist, and are more 44 or less covered with comparatively minute indentations. These indentations, moreover, form the principal evidence which goes to prove they were used as hammer-stones ; for, by experiment, one ascertains not only that flints of this shape and size are the most convenient to handle and of the right weight to produce the force necessary to detach a flake, but that continuous chipping results in giving them similar indentations, and, in fact, the exact appearance of the hammer-stone of prehistoric times. | Occasion- ally one comes across a flint core which has been used as a hammer-stone. Of the smaller flint implements awaiting description, the most common is the scraper (figs. 1-4). This tool is invariably a flint flake re-chipped to a round and bevelled edge. The Opinion is that these scrapers were used by primitive man in dressing the skins of animals; for, among the Eskimos, a similar instrument was, and—I believe I am correct in so stating—is still used for the same purpose. Several of these Eskimo scrapers are to be seen in the principal Museums of Europe and America, and, in his classic work on Stone Imple- ments, Sir John Evans figures one as a comparison with the scrapers of prehistoric times.* Many of the scrapers one finds on the Downs are beautifully formed, and, as they are of all shapes and sizes, the probability is they were used for a variety of purposes in a variety of ways. Judging by my own experiments in flint chipping, I may say these little tools are easily and rapidly made, and to this may be due the fact of their occurrence in such numbers. { now ask you to closely examine the two scrapers which have little semi-circular notches chipped out of their edges (fig. 5). With these are arranged a number of flakes which also exhibit similar notches of varying sizes. It is evident they were used as a spoke-shave for scraping or pointing some cylin- drical object. In Matural Science is figured a similarly notched flake of white quartz, which is described as having been used by the Red Indians of the Sacramento Valley, U.S.A., for pointing their bone needles.t The notches in many of the local flakes would seem to have been serviceable for a similar purpose. In others, though, the notches are much too large for this, and might have been employed for scraping or smoothing the shafts of arrows or other wooden articles. Such hollow or concave scrapers have therefore been provisionally termed, according to their respective sizes, bone needle-makers(figs. 6-8) and arrow- shafters (figs. 9-11). These needle-makers occur nowhere so abundantly as on the Sussex Downs, and it at first occurred to * Ancient Stone Implements, p- 268, fig. 203. + The Authenticity of the Plateau Implements, by W. J. Lewis Abbott, F.G.S., Matural Science, vol. xii., No. 72, plate vi., fig. 38. 45 me that the majority of the little notches might have been pro- duced naturally. In order to ascertain whether this might be the case, I devoted some time to the endeavour tc reproduce them both on the old surface flakes and on flakes newly struck from a flint. My attempts to fashion such semi-circular notches by blows from a small hammer-stone, a pointed flint, or the edge of another flake ended in a complete failure. Further experiment convinced me that the majority of the smaller and well-formed notches could only have been ;roduced by quite a different and more refined mode of flaking ; the flaking instrument used being a pointed piece of bone or horn, and the minute flakes being detached by pressure and not by blows. Not a little skill, too, is required for the operation; although, once the knack of flaking by pressure is acquired, they are readily and quickly made. ’ Having satisfied myself as to the very probable method employed in the intentional production of these needle-makers, another question arose, namely, could any of the notches have been produced unintentionally by prehistoric man during the operation of fashioning his bone spears, bone awls, or needles with the sharp edge of a flake? The bone handle of an old tooth brush with angular sides came as a timely aid at this point in my investigations. With the edge of a flake I not only made its sides rapidly assume a convex form, but I found that the pressure against the edge of the flake had detached a number of minute chips, resulting in the formation of a concave notch of the same size and shape as the convex edge of the tooth brush. On comparing my handiwork with the prehistoric needle-makers, I saw, much to my gratification, that it was an exact replica of the smaller kinds. This simple experiment leads me to believe that many of the ancient specimens were unintentionally formed in a similar manner. Personally, I think we may take for granted that but few of the notches on these hollow scrapers were naturally produced. In the case of the larger specimens, it is probable that many of them were fashioned by blows from a pointed stone, as I have succeeded in reproducing several in this manner. In speaking of the arrow-shafters, Dr. Thomas Wilson, of the United States National Museum, says: ‘The scrapers with a concave edge, for scraping arrows, are rarely found in pre- historic collections. . . . The United States National Museum possesses some, but not many. They seem not to have been recognised or cared for, and were not gathered by collectors.” * * Arrowpoints, Spearheads, and Knives of Prehistoric Times, by Thomas Wilson, LL.D., Annual Report Smithsonian Institute, 1897, p. 885. 46 The small tools, termed borers, require little description. In the majority of instances they are flakes chipped to a sharp point to serve as boring or piercing instruments. In regarding these, the ordinary observer may feel rather sceptical as to their boring or piercing capabilities; but experiment proves they admirably answer the purpose of boring holes in wood or bone. This I successfully demonstrated to some sceptical friends by boring a perfectly circular hole with one of these rude tools through the handle of a hat brush. ‘The discovery of these borers in connection with the flint axes is a rare occurrence, and but few have hitherto rewarded my many rambles over the Downs. With the exception of the flint axes, the tools described above are not such as could have been well employed as weapons of offence or defence. They evidently served more pacific purposes in the dorrestic phase of primitive man’s life ; and, we may depend, they played an important part in the preparation of animal hides as clothing, the covering of their huts or tents, &c. Of the existence of habitations on these productive sites there is an entire lack of evidence ; but, that food was cooked or water boiled on these spots, there is a profusion of proof existing in the enormous quantities of what are known as ‘‘pot-boilers,” or cooking stones. From the examples exhibited you will perceive they are approximately round flints, of varying sizes, and that they differ in colour from ordinary flints, as well as in the multitude of cracks which extend through them in every direction. This greyish tint and cracked appearance can only be reproduced in one way, namely, by heating flints to a high temperature, either directly or indirectly, by fire. In the fortified camps of pre- historic man these burnt flints occur in thousands; and it is now generally recognised among archzologists that they were employed in the cooking operations of the prehistoric tribes, who, like many savages of recent years, had no pottery or other vessels which would stand the heat of the fire. The following quotation from Professor Tylor will give you a fair idea of this method of stone-boiling as it obtained among the savages of North America :— ‘“There is a North American tribe who received from their neighbours, the Ojibwas, the name of Assinaboins, or Stone- Boilers, from their mode of boiling their meat, of which Catlin gives a particular account. ‘They dig a hole in the ground, take a piece of animal’s raw hide, and press it down with their hands close to the sides of the hole, which thus becomes a sort of pot or basin. ‘This they fill with water, and they make a number of stones red-hot in a fire close by. The meat is put into the water, and the stones dropped in till the meat is boiled. Catlin describes the process as awkward and tedious, and says that, since the Assinaboins had learnt from the Mandans to make 47 pottery, and had been supplied with vessels by the traders, they had entirely done away with the custom, ‘excepting at public festivals, where they seem, like all others of the human family, to take pleasure in cherishing and perpetuating their ancient customs.’ Elsewhere, among the Sioux or Dacotas, to whom the Assinaboins belong, the tradition has been preserved that their fathers used to cook game in its own skin, which they set up on four sticks planted in the ground, and put water, meat, and hot stones into it. The Sioux had the art of stone-boiling in common with the mass of the northern tribes. Father Charlevoix, writing above a century ago, speaks of the Indians of the North as using wooden kettles and boiling water in them by throwing in red-hot stones, but, even then, iron pots were superseding both these vessels and the pottery of other tribes. To specify more particularly, the Micmacs and the Souriquois, the Blackfeet and the Crees, are known to have been stone-boilers ; the Shoshonees or Snake Indians, like the far more northerly tribes of Slaves, Dog-Ribs, &c., still make, or lately made, their pots of roots plaited, or rather twined, so closely that they will hold water, boiling their food in them with hot stones ; while, west of the Rocky Mountains, the Indians use similar baskets to boil salmon, acorn porridge, and other foods in, or wooden vessels such as Captain Cook found at Nootka Sound, and La Pérouse at Port Frangais. Lastly, Sir Edward Belcher met with the practice of stone-boiling, in 1826, among the Esquimaux at Icy Cape.” * In Australasia and many of the Polynesian Islands, the practice of stone-boiling was in universal use until comparatively recent times. It is now, however, being rapidly superseded by the introduction cf metal pots and pans of European origin, The large wooden bowl on the table is said to have been used by the inhabitants of Banks Island, New Hebrides, in conjunction with heated stones for cooking food. It has been suggested that many of the so-called pot-boilers found on the cultivated patches of the Downs are merely flints which have been accidentally burnt in couch or other refuse heaps. This may be the case in a few instances ; but the genuine articles are readily recognised by their aged aud weathered appear- ance, and also by their similarity with the undoubted specimens from the prehistoric entrenchments and habitation sites. Having completed my brief and analytic description of the remains found in association on these productive spots, we will now turn to the Ordnance Surveys, and note the positions of a few of the most typical of such sites which I have discovered and paid repeated visits to during the past year or so. In the neighbourhood of Cissbury you will observe there are three. One * Early History of Mankind, pp. 263-264. 48 on the crest of Lychpole Hill, about half a mile south-east of the entrenchment ; another about 400 yards to the east ; and the other on the spur of the Downs, known as Mount Carvey, which slopes from Cissbury towards Broadwater. Flakes, cores, scrapers, cooking stones, refuse axes, &c., are to be found in spots throughout the length and breadth of this latter spur ; but the example marked on the map has proved the most typical and most productive. The areas of these and the other sites I have yet to mention are very varied, some being less than a quarter of an acre in extent, whilst, in others, the “ finds” lay scattered in groups over several acres. The next ordnance sheet shows the positions of three com- paratively small but very productive sites bordering the summit of the eastern escarpment of the Downs in the neighbourhood of Beachy Head. For the purpose of reference I have indicated these respectively as A, B, and C. A is situated on the northern slope of Crapham Hill, C on Pea Down, and B about half a mile north on the same spur of the Downs known as the Peak. In this district I have failed to come across one perfect axe, my discoveries being confined to refuse portions of small but beautifully chipped axes, and to the usual well-formed flakes, showing evidence of expert workmanship, scrapers, needle makers, &c. On site B an acquaintance of mine recently discovered a perfect and delicately worked barbed arrowhead when walking over the ground with me. The marked scarcity of large and complete axes in this dis- trict is, in my opinion, obviously due to the depredations of the ubiquitous stone-picker. Last year, when working the Beachy Head district, I came across a dozen men, women, and boys who were engaged in picking flints for road material from the cultivated land, and I found that, owing to their frequent conversations with collectors, every man, woman, and boy had become possessed of sufficient knowledge to recognise a ‘‘ war-stone ”’—the name it has pleased them to give a flint axe—whose value might represent anything from sixpence to as many shillings, according to the excellence of the specimen and to the length of the collector’s purse. But, in many instances, the stone-picker is not so acquainted with a rudimentary knowledge of these artificially chipped flints, and consequently many (yes, very many) beautiful specimens are gathered and subsequently cracked up as road material. In this way the Downs are being rapidly denuded of the flint implements. Happily, however, the majority of the smaller tools are left behind, and thus afford sufficient evidence to enable one to still trace the spots where they most abound. Last year, when walking by the side of the cultivated field which adjoins the Dyke Road in front of the Booth Museum,— the site Mr Councillor Carden lately proposed as a new park for Brighton,—my eye was arrested by.a beautiful little scraper which 49 lay within reach of my walking stick just over the wire fence. This led me to trespass and to the discovery that the surface of the field near the fence was covered with flakes and cooking stones. I then applied to Mr. J. J. Clark for permission to walk over the field, which he kindly granted me. Since then I have repeatedly worked the field, and have found that the cooking stones, flakes, scrapers, needle-makers, cores, &c., occur more or less in groups over its whole surface. Of the larger implements I have only discovered the halves of flint axes, both rough and polished, including a large roughly chipped axe, probably a waster, which has subsequently proved one of the most interesting surface implements I have yet found. Its special characteristic is a small patch of glaze on one of the facets, which Professor Boyd Dawkins says is identical with that hitherto only observed on a few of the older river-drift implements.* The question of the origin of this natural glaze is yet unsolved. It is, moreover, a question which cannot detain us on the present occasion. The next spot to be mentioned is the most typical I have to bring before your notice. This is situated in the open fields on each side of the Dyke Road just beyond the last reservoir and about half-way from the clock tower to the Dyke. Here I have discovered several fine and perfect axes, and some of the most beautiful scrapers I have ever seen. With these, too, were associated the usual quantities of flakes, cooking stones, and many of the other smaller flint tools. The finest axe it has ever been my lot to add to the Museum collection, I accidentally turned up about two years ago near the south-western summit of Newmarket Hill, known locally as Norton Top. This is now shown mounted in a wooden handle of very modern appearance to represent the probable style of hafting. Its discovery induced me to thoroughly work the brow of the hill and the cultivated land in its vicinity as far as the growth of the crops would allow. But, with the exception of one small but prolific spot near Wick Farm, a quarter of a mile to the south-west of the hill, this locality at first proved very barren. This particular spot, the last I have to bring before your notice, was absolutely littered with delicate flakes. Cooking stones, too, were in abundance, and, associated with them, were many finely worked scrapers, including several of exceptionally small size. Before leaving this part of the Downs, I may mention that Norton Top has recently been laid bare of its crops and so enabled me to give it a thorough overhaul. A few solitary pot-boilers lie strewn here and there over its surface unaccompanied by any of the smaller flint implements; but, not far from the spot where the flint axe was found, there are * Paleolithic Implements from Savernake, by Edgar Willett, M.B., Journal of the Anthropological Institute, vol. xxxi., page 310. 50 hundreds of well-formed flakes grouped together and confined to small spaces only a few square yards in extent. Such spots as the latter are commonly termed fabrication sites, or, in other words, places where primitive man made a halt or periodic visits in order to dig into the clayey mould capping the hillside for flints from which to make his flint tools. Whether either of these represents the spot where the axe exhibited was fabricated, it is of course impossible to say, although it is probable, owing to the axe exhibiting no sign of ever having been used. This brings me to the conclusion of my brief description of these productive sites and of the implements found in association on them. There are many others scattered. over the Downs in the three districts mentioned; but, as yet, I have not had sufficient leisure to overhaul them thoroughly, and [ ‘have deferred marking their positions on the maps till this has been done. They are by no means common, and often, when I have set out on a prospecting tour over the Downs, 1 have walked miles without coming across a single flake, cooking-stone, or the least trace of a new site. Those I have already discovered are generally situated on or quite near some eminence which commands a wide view of the surrounding country. From the array of evidence we may deduce the obvious conclusion that these productive areas were frequented by the members of some primitive tribe, not only for the purpose of boiling water or cooking food, but for making their flint tools and for preparing animal hides as clothing, tent coverings, and other articles for domestic use. Lacking a better term, I have therefore given these sites the name of ‘“ Camping Grounds.” The problem now inviting our solution is the question as to what period may we assign these camping grounds. Judging by the nature of the “ finds,” many of you may have no hesitation in saying we may at once relegate them to a position in the Neolithic phase of the Stone Age. Before venturing any opinion, however, it is necessary that we examine the evidence of the extent and duration both of flint chipping and of the practice of stone-boiling in the south of England. From the character of the exhibits I think we may safely cmit any reference to the older stone periods, and confine our attention to the consideration of the later prehistoric and early historic times. In the Neolithic period, flint chipping in England had not only merged from a craft into a fine art, but it had attained its highest degree of perfection. As to the duration of this high standard of excellence we are unable to say, but recent research seems to point to the inference that the art exhibited little sign of decadence till the transitional period of the substitution of bronze tools for those of stone was far advanced. Moreover, the abundance of flakes, scrapers, hammer-stones, &c., found in association with the remains of the Bronze, Early Iron, and eee ee ”-—S—<“