90 



HARDYVICKE'S SCIENCE-GOSSIP. 



NOTICES TO CORRESPONDENTS. 



To Exchangers. — We have been requested to beg those 

 who make use of our Exchange Column, to keep faith with 

 any who may reply to them. It is essential that all exchanges 

 should be ready before publication. 



To Querists.— We have several queries whose answers we 

 are forced to postpone, chiefly owing to the melancholy 

 incident which has occurred in connection with Science- 

 Gossip. 



J. Thompson, and others.— Answers next month. 



W. W. P. H.— If you will refer to back volumes of Science 

 Gossip, you will get ample information concerning aquaria. 



An Occasional Correspondent has sent us a poem from 

 the well-known " Olney Hymns,'' in which is given, on pace 

 29o, the account of a " Toad and Spider," referred to in the 

 January number of Sciknce-Gossip by James Pearson. 



L. S F. — Your fossil fish is undoubtedly genuine. It is 

 from the Tertiary shales of Monte Bolca. We are afraid your 

 " centipede " is something else. Could you send us a sketch 

 of it? Consult " Geological Stories." London: Hardwicke, 

 price 4s. 



T. Edwards. — We believe your geological specimen is the 

 femur, not the paddle, of a Plesiosavrus. Was it discovered 

 in a drift deposit? Many svich specimens are found in drift 

 deposits in the eastern counties of England. Your description 

 of the bed in which the bone is said to have occurred answers 

 to that of a drift deposit. If so, the bone had been re- 

 deposited. 



H. R. W. — We are much obliged to you for your suggestion, 

 but are afraid it would not be possible at present to publish 

 a separate index of the ten volumes of Sciknce-Gossip. 

 Readers might find in Hardwicke's Catalogue an index of the 

 principal subjects treated upon in each volume, from the 

 beginning. 



C. J. Watkivs. — We shall be very glad to accept your kind 

 offer of named Exotic lepidoptera, &c. 



E. T. Scott. — Your spider's nest from the Cape is evidently 

 that of some species of Trap-door spider (Mygale). 



M. Y. fSkye). — Your specimen is a marine shell, evidently 

 a Littorinn, encrusted with a sponge called Leuconia vicea. 

 It is a common seaside object. See " Half- Hours at the Sea- 

 side." London : Hardwicke. 



Tidvtell.— Your specimen is Tussilago fragrans, not a 

 British plant, but an introduced species, which is rapidly 

 overrunning the country. 



M. H. C. would get every information he requires for the 

 management of a fresh-water tank in " Shirley Hibberd's 

 Fresh-water Aquarium," to be had from any bookseller for 

 about two shillings. 



EXCHANGES. 



Cbystals of Salicine for polariscope. — Send stamped 

 directed envelope to W. H. Gomm, Somerton, Taunton. 



For mounted section of Spine of Echinus, will give slide of 

 Foraminifera from Isle of Dogs.— C. E. B., 61, Crouch-street, 

 Colchester. 



Wanted, well mounted slide of Uredo fcetidu, or of Eye of 

 Drason-fly. Will give slide of Cluster-cups on Aconite. — 

 C. E. B., ol| Crouch-street, Colchester. 



A quantity of Crystals, mounted, for Polariscope, suitable 

 l~>r Binocular, or for other good Slides. — Thomas Buck, ill, 

 Corporation-road, Middlesborough. 



Wanted, specimens of Native Graphite, massive and 

 crystalline, and of Kish. Also specimens of Fruits and Seeds, 

 and their Products, found in commerce, or otherwise 

 interesting. — W. G. ^ Piper, care of F. Sutton, Bank-place, 

 Norwich. 



Specimens of British Lepidoptera with other collectors. — 

 Address, W. H. Eean, London Hospital,,Mile End, E. 



N. Z. W. will be glad to correspond with collectors of 

 Coleopterain Scotland, Wales, and the south of England, 

 with a view to purchase or exchange of fresh and unset 

 s-pecimens. — 3, Bootham, York. 



Wanted, Diatoiuaceous Deposit from Barbadoes; good 

 Slide given in exchange.— Thomas W. Bruce, 26, Wapping, 

 Liverpool. 



Skin of Scyllium, with angular scales in situ, mounted for 

 binocular arrangement, for any good Slide. — A. Haward, 1, 

 Shirley Villas, Addiscombe, Croydon. 



For Tous les Mois, send stamped envelope and any object 

 nf interest to J. G. R. Powell, Brow- Hill House, Leek, 

 Staffordshire. 



Rhitmni, Populi, Jrtcobtrw, Duminula, Derasa, Bntis, 

 Cytherea, Nupta, Crudu, Stubilis, Mensuraria, Bipunrttitu, 

 Ocelluta, Multistrigaria, Progemmaria, Punctariu, Cundiduta, 

 and others, for Butterflies in good condition. — H. A. M., 39, 

 Leamington-road, Bayswater, W. 



Wanted, any quantity of Dytiscus maginnlis, or other 

 Dyticidee, alive or lresh-killed, for Dissection, for Micro-slides, 

 Cash, &c — J. S. Harrison, 48, Lowgate, Hull. 



Wanted, fresh specimens of Wild Plants, for those of the- 

 British district. — W. E. Green, 4", Park-street, Bristol. 



Beale's " How to work with the Microscope," last edition' 

 for last edition of Carpenter's " Microscope and its Revela- 

 tions." — A. J. Blackmail. Romford, Essex. 



For exchange or otherwise, a first-class J Object Glass, 

 by Thomas Ross, especially selected for the late owner. — 

 Apply to Rev. J. Bramhall, St. John's Vicarage, near Lynne, 

 Norfolk. 



Slidrs of Micro-fungi, &c, well mounted, for all kinds of 

 Unmounted Material —J. H. Redgern, Grosvenor-street, 

 Manchester, S.E. 



Wanted, unmounted Zoophytes, British and Foreign, and 

 unmounted Parasites ; good Slides in exchange. — Edward 

 Ward. Higher Broughton, Manchester. 



Orthnseira arenaria,ior mounted or unmounted Objects. — 

 P. B., Florence Villa, Crophill, Glasgow. 



Butterflies from Borneo and South America, Precious 

 Stones, Minerals, Exotic Shells, for good Micro-slides. — 

 C. Napier, 4, Elgin-road, St. Peter's Park, London, W. 



Liberal Exchange in really first-class Objects, for 

 superior Diatomaceous Material from South America, Africa, 

 or Asia, or other really good stuff. — H. B. Thomas, Boston, 

 Lincolnshire. 



First-class selected and arranged Diatoms, for other 

 really good Slides, or Diatomaceous material. — G. W., 89, 

 Higher Cambridge- street, C. on M., Manchester. 



Wanted, 977, 1037, 1048, 1051, 1 105 ; offered, 969, 970, 1236, 

 1249, 1310, 1316, 1318, Lon. Cat., 6th edition.— W. J. Hannan, 

 6, Tatton-street, Ashton-under-Lyne. 



Wanted, Ova of Mori, and all other Silkworm Moths ; 

 British Lepidoptera will be given in exchange. — Castle 

 Barnes, 1, Priory-terrace, Colchester, Essex. 



Marine Alg.*, prepared as recommended in Science- 

 Gossip for March, Zoophytes, Mollusca, Diatoms, various 

 interesting Marine and Land Material, for Micro Accessories, 

 Polariscope, &c— T. McGann, Burrin, Oranmore, Ireland. 



Instructions in French or Shorthand (Pitman's), for 

 Assistance in Botany, Conchology, or any branch of Natural 

 History.— Apply G. T. Barker, Abbey Walk, Great Grimsby. 



Wanted, British Marine Algae, mounted or unmounted, for 

 American Algte.— Address, by Mail, Rev. A. B. Hervey, 10, 

 North Second street, Troy. New York, U.S.A. 



Wanted, good named Algae, Mosses, Seeds, Parasites, &c , 

 for other good named Objects for mounting.— C. J. Watkius, 

 Painswick, Gloucestershire. 



A good selection of Microscopic Slides, for a few cabinet 

 specimens of Fossils from the Old Red Sandstone, Coal 

 Measures, and Eocene.— E. Lovett, Holly Mount, Croydon. 



Wanted, Apparatus for the Microscope, for good Slides 

 and Material; also large Cabinet. — W.Tylar, 165, Well-street, 

 Birmingham. 



Wanted, Shells, Minerals, and Fossils.— J. T. T. Seed, 

 Ryhope, Sunderland. 



Cassell's " Natural History," 4 vols, (unbound), for other 

 books. — Thomas H. Hedworth, Dunston, Gateshead. 



Microscopic Slides for others. — Send lists to John C. 

 Hutcheson, 8, Lansdowne-cresccnt, Glasgow. 



Pup/E of P. Machaon, C. Elpenor, Porcellus, or Larvae of 

 any kind, for Imagos or Preserved Larvae. — William W. 

 Nettleton, Eyre-street, Batley. 



Several hundred Silkworms' Eggs for Carboniferous 

 Fossils.— H. H. Ebrall, Canonbury House, Shrewsbury. 



About fourteen species of Newer Pliocene and Red Crag 

 Fossils. Lists exchanged. Others wanted.— A. Limebeer, 

 8, Melvern Cottages, Kentish Town, N.W. 



Reversed specimens of the Common Snail {Helix aspersa), 

 for an equivalent in Micro-slides.— William Gray, Naturalists' 

 Field Club, Belfast. 



BOOKS, &c. RECEIVED. 



" Fungi." By Dr. M. C. Cooke and the Rev. M. J. 

 Berkeley. London : H. S. King & Co. 



'• Proceedings of Literary and Philosophical Society of 

 Liverpool, 18/3-4." 



" The Western." Parts 1, 2, and 3. 



" Bird Life." By Dr. Brehm. London : Van Voorst. 



" Land and Water." March. 



"Journal of Applied Science." March. 



" Monthly Microscopical Journal." March. 



" Ben Brierley's Journal." March. 



" I.es Mondes." March. 



" Entomologische Nachrichten." Parts 1, 2, 3. 4, and 5. 



"Canadian Entomologist." January. 



" The Colonies." March. 



