120 



HARDWICKE'S SCIENCE- GOSSIP. 



D. S. — The leaf-like excrescences are not a fungus, but a 

 gall. 



X. — We are not aware that any book has been published on 

 sea-side pebbles except that of J. G. Francis, called " Beach 

 Rambles," which is as full of geological errors as it could pos- 

 sibly be. 



B. Hooker. — Your larva of the goat-moth should be kept in 

 a tin or wire-gauze box, and a large piece of half rotten ash- 

 wood placed with it. It will appear as a moth the third year 

 from its commencing its life as a caterpillar. 



D. Cooper. — There is no doubt your specimen is Clausilia 

 laminiata, in which the mouth is almost entirely deflected to 

 the side opposite to that on which it is usually found. 



R. Ramsay. — You will be able in your subsequent geological 

 reading to answer your own difficulty better than we can in the 

 short space at our command. But we may say that the reason 

 why it would be futile to bore for coal through the Oolite or 

 Wealden would be on account of the known thickness of the 

 overlying formations. 2nd. Your highest Scotch mountains 

 have nothing to do with the thickness of our old red sandstone. 

 The thickness of the latter is known from observing the angle 

 of the dip of the strata, and the area covered by the outcrop. If 

 you study Page's " Geology," you will soon get over your 

 present difficulties. Persevere ! 



A. Sells. — Your Zoophytes are : No. 1, Flustra foliacea. 

 No. 2, Sertularia operculata. No. 3, Dasya coccinea, a sea- 

 weed. No. 4, Sertularia argentea. Nos. 5 & 7, Sertularia 

 filicula. No. 6, Plnmnlaria falcata. No. 8, Antennularia 

 antennina. 



A. Wheldon. — You will find full instructions for " sugaring" 

 for moths, &c, in " Collecting and Preserving Natural History 

 Specimens," published by Hardwicke & Bogue, 192, Picca- 

 dilly, at 3s. 6d. 



A. G. N. — Your specimen is an English plant, usually found 

 growing in such localities as that you name. It is the curious 

 Butcher's Broom (Rnsciis acnleattis). 



J. W. N. and Others. — It is intended to revise the rules, &c, 

 of the Botanical Exchange Club. Due and full notice of revi- 

 sion, &c., will be given in our columns. Application for mem- 

 bership can then be made. 



W. Hobbs. — Very likely your chrysalides will develop early 

 during the coming summer. 



J. P. Thompson. — We understood that a new edition of 

 Pritchard's " Infusoria" was postponed. Lownde's 'Anatomy 

 of the Blow-fly " can be had of Messrs. Hardwicke & Bogue. 



R. B. N. — The fossils are corals, belonging to the Silurian 

 formation. No. 1 is the "Chain-coral" (Halysites catenipora), 

 and No. 2 is Favosites Gothlandica. The small shells which 

 you think look like "cockles" are in reality not bivalves, but 

 specimens of Melluscoidea. They are fossils belonging to a 

 group (Brachiopoda') once as abundant as they are now rare. 

 The name of those enclosed is Rhyconella IVilsoni. 



T. McGann. — Your entomostracans are the male and female 

 of Canthocamptus minutns. Your slides are very well got up 

 indeed. 



A. S. A. — Get " Collecting and Preserving," published by 

 Hardwicke & Bogue, 192, Piccadilly, price 3s. 6d., and read 

 the article on collecting butterflies and moths, by Dr. Knaggs, 

 and beetles, by Mr. E. C. Rye. 



EXCHANGES. 



Duplicates. — A number of Lepidoptera in good condition, 

 and well set. Desiderata : Birds' Eggs, side-blown, not in my 

 collection. — R. Kay, 2, Spring-street, Bury. 



Wanted, Newman's or Stainton's " Lepidoptera." Offered 

 5 vols, bound, and 3 unbound, Science-Gossip, and other 

 books. — W. E. Green, 24, Triangle, Bristol. 



J. W. Bulmer, near the church, Northallerton, Yorks., will 

 exchange Jackdaw's, Lapwing's, Song Thrush's, Moorhen's, 

 Stock-dove's, Starling's, &c, birds' eggs, for other varieties of 



eggs- 



Wanted, British or foreign Stone Implements and Weapons 

 of any kind ; Stone Hammers, Chisels, Wedges, &c. ; also 

 Tools and Weapons wholly or partly composed of stone, relating 

 to any uncivilized race of men. — W. M. Cole, 93, St. Helen's- 

 street, Ipswich. 



Bird's Eggs, 250 varieties, valuable duplicates, side-blown, in- 

 cluding many unprocurable species. Desiderata : Species new 

 to collection. Exchange lists supplied. All letters answered. 

 Sissons, 11, Priory-road. Sharrow, Sheffield. 



Well-mounted Slides of injected human Kidney, Palate of 

 Whelk, and transverse Section of Porcupine Quill, in exchange 

 for others mounted in balsam. — J. A. Kay, Mansion House, 

 Brompton, Chatham. 



Wanted, some good Polariscope Objects, for others or cash. 

 — T. Brown, 7, Spencer-street, London, E.C. 



For Elytron of Diamond Beetle, or Skin of Tench or Sole, 

 Polar-mounted, send well-mounted objects or material to 

 Thomas Shipton, Chesterfield. 



Slide, as announced in last month's Science-Gi'skip, 

 offered in exchange for first-class prepared material (unmounted 1 . 

 Box must accompany material to be returned with slide. — James 

 Simpson, 15, Prospect-place, Dumbiedykes-road, Edinburgh. 



London Catalogue, Seventh Edition, Nos. 19, 121, 122, 130, 

 133, 201, 265, 267, 349, 394, 396, 497, 533, 542, 534, 841 b, 860, 

 888, 912, 923, 1014, 1040, 1109, 1142, 1310, offered for any 

 of Nos. 775 to 807 inclusive. — W. Jones, Manchester-street, 

 Oldham. 



For BatracJwspcrmum moniliforme and Tahellaria ventri- 

 cosa, both just as collected, send objects of interest. — W. West, 

 Chemist, Bradford. 



Wanted, Westwood's " Introduction to the Classification of 

 Insects," for foreign insects (chiefly parasites), mounted or un- 

 mounted. — M., Anglesea Lodge, Godalming, Surrey. 



Wanted, a few Eggs of Lepidoptera, and Micro-Lepido- 

 ptera, whole for mounting, in exchange for really good slides. — 

 T. H. Buffham, Clarendon-road, Walthamstow. 



Wanted, a Coddington Half-inch Lens, Matthews or other 

 Turntable, and a Section-cutting Machine. Can offer good 

 Micro Slides, &c.— Wright, 8, Grosvenor-road, Headingley,. 

 Leeds. 



Will exchange " Live Stock," Journal, cost 8s., and other 

 books, for back numbers of Science-Gossip, or scientific works. 

 E. Velge, 41, Peckham Grove, London. 



Wanted, every description of Mounted Objects and Micro- 

 scopic Apparatus, in exchange for Mounting Materials. A list 

 sent to all applicants. Foreign correspondence solicited. All 

 letters answered.— E. Atkins, 200, Essex-road, Islington, 

 London. 



Wanted, Volumes of Science-Gossip, Coleoptera, or Books 

 on them, in exchange for very large Latin Book on Insects, 

 date 1634. " Insectorum sive minimorum animalium Theatrum." 

 Calf, full of woodcuts of all insects, exchange value 15s. — J. N. 

 Minnitt, 5, Regent-street, Nottingham. 



Wanted, Wood Sections, Fish Scales. Hair Sections, and 

 every variety of Unmounted Objects, for Mounted Objects 

 (good).— C. W. Lawton, 200, Essex-road, Islington, London. 



Wanted, unmounted, Ripe Capsules of Mosses, Sori of 

 Ferns, cleaned Polycystina and Foraminifera. Well mounted 

 Slides in exchange. — Send postal slide-box for return to 

 T. Sherlock, 32, Exchange-street, St. Helens. 



Foreign Shells. — Duplicates, mostly of Japanese, Chinese, 

 Burmese, Java, and Philippines, Australian. — Desiderata : 

 principally North and South American, West Indian, Medi- 

 terranean, Spanish, French, Algerian, and Egyptian ; also 

 duplicates of about fifty sorts of British Land and Freshwater 

 Shells for the above desiderata. Exchanges invited. — W. 

 Sutton, Upper Claremont, Newcastle-on-Tyne. 



London Catalogue, 7th edition, wanted, 1479, 1495 b, 

 1496 b, 1505, 1511, 1513, 1520 b, 1523 b, 1531 b, 1535 b, 

 1548, 1572 b, for 1447, 1449, 1448, 1136, 1145, &c. — B. M. 

 Watkins, Treaddow, Hentland, Ross, Herefordshire. 



A firm, substantial, Equatorial Stand for Telescope for 

 exchange. Wanted, a Foot-lathe, good Magic Lantern, or 

 Scientific Apparatus. — Address, H. Morland, Cranford, 

 Middlesex. 



Mosses. — Wanted, a Northern Correspondent to exchange 

 Species from the West of England District. — Address, £. 

 Wheeler, 31, Triangle, Tullen-road, Bristol. 



Rare British and Foreign Eggs to exchange for others not 

 in collection. All letters answered. — J. T. T. Reed, Ryhope, 

 Sunderland. 



Will exchange any class of neatly-mounted Micro Slides 

 or Material, Diatoms in situ ; Parasites or their Eggs particu- 

 larly wanted. Prefer to send stained vegetable preparations, 

 unless otherwise requested. — W. Teasdale, Headingley, Leeds. 



BOOKS, &c, RECEIVED. 



" Popular Science Review." April. 

 " Land and Water." April. 

 " Midland Naturalist." April. 

 " Scottish Naturalist." April. 

 "American Naturalist." March. 

 " Science pour Tous." March. 



" Bulletin de la Societe Beige de Microscopic" February. 

 " Feuille des Jeunes Naturalistes." January, February, 

 March, and April. 



&c. &c. &c. 



Communications have been received up to the ioth 

 ult., from:— B. H.— D. C— C. W. L.— A. J.-H. B.— 

 J. W. D. K— A. W.— H. A. M.— B. B. T.— J. F.— Col. B.— 



B. P.— P. T.— H. K.— T. Q. C— Dr. E. De C— W. B. G.— 

 H. F. B.— W. R. M.— F. A. P.— A. P.— G. N. M. — R. N.— 



C. L. P.-J. N.-R. E. S.- W. T.-W. H. B.-W. J.— J. P. S. 

 — R. R.— J. C— Col. M.— VV. V. A.— W. W.— H. L. G.— 



B. M. O.-R. H.-W. H. H.-J. C.-E. W.-J. T. T. R. 

 —A. S. B.— T. W.— T. H. B.— J. D.— E. A.— W. E. G.— 



C. F. W.— W. M. P. -J. W. B.— J. A. K.— Dr. E. H. V.— 

 A. G. N.-J. W. N— R. K.— W. H. W.— F. H. A.— W. W.— 

 T. S.-T. B.-E. V.-J. C.-J. K.-H. W. S. W. B.-J. W. C. 

 _j. s.— J. T. P.— J. P. T.— H. P. M. -T. S.— H. N. B.— 

 J. W. S.-W. S.— J. McG.-W. E. J.-H. M.— B. M. W.— 

 W. D. B.-J. P.-W. H. B.-G. L. H.-T. W. D.-A. B.— 

 E. W. M.— A. S.— H. B.— A. S. A.-G. A.— &c. &c. &c. 



