SCIENCE-GOSSIP. 



Prellminnry Notice. 



THE VALUABLE COLLECTION OF BIRDS 



formed by tlie late Mr. Whiteley, also the Collection of British 

 and Foreign Insects, Birds, Minerals and other Natural History 

 Specimens formed by the late Mr. Hadfleld, of Newark. 



Mr. J. C. Stevens \vill sell the above by auction at his Great 

 Eooms, 38, King Street, Covent Garden, early in May. Catalogue 

 in preparation. 



Monday, April 17th. 



A GENERAL COLLECTION OF NATURAL HISTORY 



SPECIMENS. 



' Mr. J. C. Stevens will sell the above by auction at his Great 

 Booms, 38, King Street, Covent Garden, as above, at 12.30 

 precisely. 



On view Saturday prior, 10.0 a.m. to 4.0 p.m., and morning of 

 sale, and catalogues had. 



LOUIS'S MICROSCOPICAL OBJECTS 



24 Series, Unmounted, of Cleaned Diatoms, 12 tubes in each 

 Series, 4s. per Series. 5 Series of 24 Foraminiferous Sands at 

 2s. each. 5 Series of 24 Microfungi at 2s. each. 7 Series of 24 

 Sections of Woods, 2s. each. 



Cleaned Unmounted Dia- 

 toms. 



Series i. — 4s. •per 12 htbes. 



Aulacodiscus Kittonii. 

 Synedra vilna typica. 

 Prasiez (Hungary). 

 Millbury (Mass. U.S.A.) 

 Sing Sing (Hudson River, 



U.S.A.) 

 Cherryfleld (Maine, U.S.A.) 

 St. Satumin (France). 

 Bain's lower (Oamaru). 

 Bodos (Hungary). 

 Simbirsk (Russia). 

 Licmophora iiabellata. 

 Striatella unipunctata. 



24 Trans. Sect, of Woods. 



Series xxviii. — IJnmountedi, 2s. 



Pinus pinea. 

 Pinus laricio. 

 Pinus montana. 

 Quercus Sessiliflora. 

 Carpinus betulus. 

 Ulmus campestris. 

 Tilia parviilora 

 Clematis vitalba. 

 Myrtus communis. 

 Salix caprea 

 Platanus orientalis. 

 Populus alba. 

 Etc., etc. 



W. WEST. 15, MORTON LANE, BRADFORD. 



Send stamp for List. 



MAGIC lanterns; 



NO SMELL. NO SMOKE. NO BROKEN GLASSES. 

 GRAND ^i^THE MARVELLOUS 



RESULTS. HinK PAMPHENGOS. 



MAB,YELLOUS PAMPHENGOS. — The finest Oil-Ughted 

 lantern extant; equals Limelight; stood the test against all 

 imitations. Over 3,000 sold — supplied to the Government and 

 School Boards. Particulars free. 



GILCHRISr SCIENCE La.NTERN.-Ozyhydrogen Micro- 

 scopes, Polariscopes, &c. The Cinematograph, for Living Pictures. 



Mr. Hughes's Grandly Illustrated Catalogue, over 160 Original 

 Wood Engravings, Price, 6d. ; Postage, 3d. Cheapest, Best and 

 Most EeUable Outfits in the world. 



THE ART OF PROJECTION, AND COMPLETE MA&IC 

 LAN TEEN MANUAL, by an Expert. Over 100 fine Dlustrations , 

 with priceless wrinkles. How to use Oil, Limelight, Dissolving, 

 Electric, Microscopic and Polarising Lanterns, Shde Making, 

 Painting, &c. Price, bound in cloth, 3s. 6d. ; Postage, 5d. 



W. C. HUGHES, Patentee and Specialist. 



Brewster House, Mortimer Road, Kingsland, London, N, 



Second-Hand Lanterns and Slides — Bargains. 



ILLVSTRATEB LISTS FUSE. 



50 Beautifully Coloured Slides on loan for 3s. 



THE SCIENTIFIC ROLL 



AND MAGAZINE OF SYSTEMATIZED NOTES. 



This Work is a Valuable GUIDE, BIBLIO- 

 GRAPHY and INDEX to SCIENCE. 



This work, now in course of publication, embraces : 



1. A Bibliography classified according- to subjects arranged 

 (1) according to the year of publication, and (2) alphabetically 

 under each year according to the name of the author ; each item 

 has its distinctive nvimber for reference purposes. 



2. An Index, which, althoug-h arranged alphabetically, is 

 classified in groups more than is usual in an index, the object 

 being to render it possible, at some future time, to amalgamate 

 the various subject indexes into one general classified index. 



3. A Sysiemntized Collocation of Facts gi'ouped according to 

 their relationship to each other. The aim of the whole is to 

 enable any person engaged in scientific research to find the in- 

 formation he seeks ^vith a minimum expenditure of trouble, 

 time, and cash. 



As the work is the result of forty years' labour, its main 

 features cannot be fully described in a short advertisement. All 

 persons interested in the classification of scientific data, especi- 

 ally those commencing a research, are invited to send for a 

 prosijectus aud fuller particulars to 



A. RAMSAY, 

 4, Cowper Eoad, Acton, London, W. 



MARINE BIOLOGICAL ASSOCIATION OF 

 THE UNITED KINGDOM. 



THE LABORATORY, PLYMOUTH. 



The following Animals can always be supplied, either living or 

 preserved by the best methods : — 



Sycon ; Clava, Obelia, Sertularia; Actinia, TeaUa, CaryophyUia, 

 Alcyonium; Hormiphora (preserved) ; Leptoplana; Lineus, Am- 

 phiporus ; Nereis Aphrodite, Arenicola, Lanice, Terebella ; Lepas, 

 Balanus, Gammarus, Ligia, Mysis, Nebalia, Carcinus ; Patella, 

 Buccinum, Eledone, Pecten ; Bugula, Crisia, PerdicelUna ; 

 Holothuria, Asterias, Echinus: Ascidia, Salpa (preserved), 

 ScylUum, Eaia, etc., etc. 



For Prices and more detailed Lists apply to 



THE DIR ECTOR, Biological Laboratory, PLYMOUTH. 

 PHYSIOGRAPHY AND GEOLOGY. 



COLLECTIONS&MICROSCOPICSLIDES 



As advised by Science and Art Directory, arranged by 



JAMES R. GREGORY & Co., Mineralogists, &c. 



To Science and Art Department, British, Indian and Colonial 

 Museums, &c. 



Novelties and Rare Gems and Precious Stones^ 



Mineral Specimens for lluseums and Collectors, and all purposes. 



Rock Siiecimens and Microscopic Sections of Rocks and 



Minerals cut to order. 



New and Valuable Mineral Specimens constantly arriving. 



Stores Olid Offices;— I, KELSO PLACE, KENSINGTON, W. 



New Catalogues and Lists Free. 



SOUTHAMPTON BUILDINGS, CHANCERY LANE, W.C. 



TWO-AND-A-HALF per Cent. INTEREST allowed on De- 

 posits, repayable on demand. TWO per CENT, on CUEEENT 

 ACCOUNTS on the minimum monthly balances, when not 

 dravm below £lOO. STOCKS and SHAEES purchased and sold. 

 SAVINGS DEPARTMENT. . 

 For the encouragement of Thrift the Bank receives small sums 

 on deposit, and allows Interest monthly on each completed £1. 

 BIRKBECK BUILDING SOCIETY. 

 How to PUECBLISE A HOUSE for Two Gumeas per Month. 



BIRKBECK FREEHOLD LAND SOCIETY. 



How to Purchase a PLOT OF LAND for s. Per Month. 



The BIRKBECK ALMANACK,with full particulars, post free. 



Established 1851. FRANC IS BAVENSCROFT, Manager. 



BORD'S 

 PIANOS 



25 Per Cent. Discount for Cash, or 14-S. 6d. Per Month 



(Second-Hand, lOs. 6'\- J".*^^; ^°^^H' OH aQ^X J|^f'<1 

 Hire System. lUustrated Lists free, of C H A S. STY Lh. t» 

 & CO., 40 and 42, Southampton Row, London, W.C. 

 Pianos Exchanged. 



