lxxxvi 



HARDWICKE'S SCIENCE-GOSSIP. 



£5. LOUIS'S 



^E^IE^ 6EJIiCE;@JSC0PIC5L e@BJEC¥]5. 



Above 70 Series of Unmounted Objects at Is. each Series, ready 

 for mounting. Also 12 Series of Unmounted Clea?ied Diatoms, at 

 3s. each, 12 tubes in each. Also above 50 Series of Mounted Slides, 

 beautifully mounted on 3 X 1 Slips. The Mounted Slides are in 

 Series of 12 for 5*. Also 2t Special Series of Mounted Slides, 6 

 in each Series, at 4,y. each. 



SPECIAL SERIES 20. 

 6 Slides, 4s. 

 Bacillus tuberculosis. 



, , Typhi-abdominalis. 

 Sarcina lutea. 



Micrococcus ovale (Lactic ferment.) 



cinabreus. 

 Pasteurella Cholera-g-allinarum. 



SPECIAL SERIES 21. 



6 Slides, 4s. 

 Bacillus Lesagei. 



„ thermophilus. 



,, of Diphtheria. 

 Bacterium xanthinum. 

 Urobacillus Maddoxii. 

 Urococcus Van-Tieghemi. 



12 PALATES OF M0LLTJSCA.-5s. for 12 Slides. 



Trochus magus. 



lineatus. 

 Helix pomatia. 



„ aspersa. 

 Bulimus acutus. 

 Limax marginata. 



12 SELECTED DIATOMS. 



Coscinodiscus robustus. 

 Trinacria regina. 

 Heliopelta Leeuwenhceckil. 

 Arachnoidiscus Elirenbergii, 

 Aulacodiscus Kittonii. 

 Isthmia enervis. 



Patella vulgata. 

 Buccinium undatum. 

 Cyclostoma elegans. 

 Littorina Httorea. 

 Haliotis tuberculata. 



if n (opaque.) 



Series 1— 5s. for 12 Slides. 



Surirella striatula. 

 Campylodiscus costatus. 

 TerpsipOe musica. 

 Navicula firma. 

 Actinocylus Ehrenbergii. 

 Actinoptychus senarius. 



Sole Agent: Wm. WEST, 15, Horton Lane* Bradford. 



Send Stamp for Catalogue of 40 Pages. 

 Of all Booksellers. Price ONE SHILLING- nett. 



NATURAL SCIENCE 



A Monthly Review of Scientific Progress. 



Contains NOTES, ARTICLES, and REVIEWS, by the most 

 Eminent Naturalists. 



London and New York : MACMILLAN & CO. 



W. H. HARWOOD, Colchester, 



Supplies British Macro and Micro-Lepidoptera, 



Living: Pupae of Lepidoptera, Coleoptera, 

 Aculeate and other Hymenoptera, Hemiptera, 

 Diptera, Birds' Egg's and Skins, Shells, &c. 



The Specimens are in the finest possible condition, and all the 

 Insects are warranted British, and true to name. Type Collections 

 of the various Orders, Families, Sub-Families, and Genera at very 

 moderate prices. 



N. B. — As the Lists are separate, it is requested that applicants 

 will in each case specify which they require. 



CON CHOLO OY. 



MAK.INE, LAND, and FRESHWATER SHELLS 



FROM ALL PARTS OF THE WORLD. 



A Large Stock of Choice and Rare Specimens. 



Square Glass-Topped Boxes, from Is. 3d. per doz. 

 Circular, Is. per doz. 



HUGH FULTON, 216, King's Rd., Chelsea, LONDON, S.W. 



ILLUSTRATED LIST FREE DN APPLICATION 



Hunting 



JLwl_~£- — cTh.h. walker. 



MEDIA 



.l2.Cl,urchS<:LIVERP00L. 



TO MUSEUMS AND PRIVATE COLLECTORS. 



W. K. MANN, NATURALIST, 



(Established 1868,) 

 WELLINGTON TERRACE, CLIFTON, BRISTOL, 



Has now for sale, at reduced prices, one of the largest and most 

 authentic selections in this country of BIRDS' EGOS, in 

 Clutches and with Nest. BIRD SKINS. British and EXOTIC 

 IiEBIDOPTERA , and Insects generally. Splendid Stock. 

 FOREIGN SHELLS, Natural History Books, CABINETS , 

 and Apparatus. Selections of Shells and Insects, sent on approval. 



Special Offer.— Steel Egg Drill, Brass Blowpipe, and Egg 

 Label List, post-free if. 



NEW PRICE CATALOGUE FREE. 



A FINE FOUR-INCH 



ACHROMATIC TELESCOPE, 



By the late Mr. Cooke of York, equatorially mounted with tripod 

 and other requisites, as good as new. Original cost £(so. Now 

 offered at £35.— Apply to R. BENNETT, 19 Lower Hill Street, 

 Wisbech. 



A FEW STANDARD WORKS and others on 



il MICROSCOPY, in perfect order, also some SLIDES in 

 portable Cabinet, TO BE SOLD. — Apply, A. FOX, 63, Crouch 

 Street, Colchester. 



Price Is. nett. 



ON THE ORGANISATION OF SCIENCE. 

 By a Free Lance. 

 " A powerful plea." — Academy. " A very weighty protest . . . 

 suggestive and interesting . . . such vigour and incisiveness." — 

 Natural Science. "Nothing could be more admirable than his 

 purpose." — Lancet. 



WILLIAMS AND NORGATE. 



THE MICRO-FUNGI OF FRANCE, 



In Micro-Slides, with Explanatory Text. 

 Published by SIM. J. Tempere and E. Dutertre. 



From 1,000 to 1,200 species will be issued in Series of 25 species every two 

 months. Each slide will contain two preparations, one transparent for special 

 study, and the other presenting the species in situ. 



Price of each. Series with accompanying Text, 28s. post-free, 

 and registered. 



N.B. — Subscribers are requested to send their names as early as possible, 

 as 25 collections only -will be published. 



J. TEMPERE. 168, Rue St. Antoine, Paris. 



To Museums, Private Collectors, ete. 



INSECTS IN AMBER 



Mare Specimens of Real Amber Pieces, containing 

 all kinds of Insects, always to be had of 



J. HEYMANN & CO., 



Importers and Exporters of ROUGH AMBER, AND MANUFAC- 

 TURERS OF ALL KINDS OF AMBER GOODS. 



120 & 121, NEWGATE STREET, LONDON, E.G. 



VALUABLE collections of SHELLS, FOSSILS, 



V MINERALS, &c, FOR SALE. — For viewing, or particulars, 

 apply to F. M. HELE, ir Elmgrove Road, Cotham, Bristol. 

 N.B. — Many Duplicate Sliells for Sale at very cheap prices. 



ESTABLISHED 1851. 



BIRKBECK BANK 



Southampton Buildings, Chancery Lane. 



THREE ; per CENT. INTEREST allowed on DEPOSITS 

 repayable on demand. 



TWO per CENT, on CURRENT ACCOUNTS, calculated 

 on minimum monthly balances, when not drawn below £100. 



STOCKS, SHARES, and ANNUITIES purchased and sold. 



SAVINGS DEPARTMENT. 



For the encouragement of Thrift the Bank receives small sums on 

 deposit, and allows Interest, at the rate of THREE per CENT, 

 per Annum on each completed £x. Accounts are balanced and 

 Interest added on the 31st March annually. 



FRANCIS RAVENSCROFT, Manager. 



HOW TO PURCHASE A HOUSE FOR 

 TWO GUINEAS PER MONTH, OR A PLOT OF 

 LAND FOR FIVE SHILLINGS PER MONTH, with im- 

 mediate possession. Apply at the Office of the Birkbeck 

 Freehold Land Society. 



The BIRKBECK ALMANACK, with full particulars, post 

 free, on application. 



FRANCIS RAVENSCROFT, Manager 



mm 



n 



IsNumbers'f or use by Bankers:— Barrel Pens,] |UI 

 1225, 226, 262. Slip Pens, 332, 909, 287, 166 J |S« 

 £404. In fine, medium, and broad Points. ^3 " 



