XC1V 



HA RD WICKE'S SCIENCE-GOSSIP. 



S. LOUIS'S 



Above 70 Series of Unmounted Objects at 2s. each Series, ready 

 for mounting. Also 12 Series of Unmounted Cleaned Diatoms, at 

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

 beautifully mounted on 3X1 Slips. The Mounted Slides are in 

 Series of X2 for 5s. Also 21 Special Series of Mounted Slides, 6 

 in each Series, at 4.?. each. 



SPECIAL SERIES 20. 



6 Slides, 4s. 

 Bacillus tuberculosis. 



Typlri-abdominalis. 

 Sarcina lutea. 



Micrococcus ovale (Lactic ferment.) 



„ cinabreus. 

 Pasteurella C holera-gallmarum. 



SPECIAL SERIES 21. 



6 Slides, 4s. 

 Bacillus Lesagei. 



thermophilus. 

 „ of Diphtheria. 

 Bacterium xanthinum. 

 Urobaciiius 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 Leeuwenhceckiu 

 Arachnoidiscus Ehrenberg-ii. 

 Aulacodiscus Kittonii. 

 Jsthmia enervis. 



Patella vulgata. 

 Buccinium undatum. 

 Cyclostoma elegans. 

 L'ittorina littorea. 

 Haiiotis tuberculata. 



ti it (opaque.) 



Series 1— 5s. for 12 Slides. 



Surirella striatula. 

 Campylodiscus costatus. 

 Terpsipoe musica. 

 Navi'cula 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. HARW00D, Colchester, 



Supplies British Macro and Miero-Lepidoptera, 



Living Pnpse of Lepidoptera, Coleoptera, 

 Aculeate and other Hymenoptera, Hemiptera, 

 Diptera, Birds' Eggs 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. 



CONCHOLOGY. 



MARINE, 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 ON APPLICATION 

 MIPDfKMPICAL -^T^T 



A ■ H. H.WALKER. 12 



•MEDIA 



.12.ChurchS<LIVERP00L. 



TO MUSEUMS AND PRIVATE COLLECTORS. 



W. K. MANN, NATURALIST, 



(Established 1868,) 

 WELLINGTON TEKRACE, CLIFTON, BRISTOL, 



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

 authentic selections in this country of BIRDS' EGGS, i n 

 Clutches and with Nest. BIRD SKINS. British and EXOTIC 

 LEPIDOPTERA , 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 is. 



NEW PRICE CATALOGUE FREE. 



VALUABLE collections of SHELLS, FOSSILS, 



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

 apply to F. M. HELE, 11 Elmgrove Road, Cotham, Bristol. 

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



MICROSCOPE SLIDES. 



Attractive Slides for exhibiting ; gorgeous polarising, brilliant 

 opaque, and interesting objects in great variety. Price 5s. doz. 

 Many worth is. each. 



SPSCIA1 OPFBS,- Two dozen Slides post-free for raj., 

 to Belgium, Canada, France. Germany, India, Malta, New Zealand, 

 South Africa, Switzerland, Trinidad, and Australia (except Queens- 

 land). 



HENRY EBBAGE, Southend-on-Sea. 



Known everywhere. 



Post 8vo., cloth limp, 2s. per Volume. 



Bayard Taylor's Diversions of the Echo Club. 



Bennett's Ballad History of England. 



Bennett's Song's for Sailors. 



Godwin's Lives of the Neeromaneers. 



Pope's Poetical Works. 



Holmes's Autocrat of the Breakfast-Table. 



Jesse's Scenes of Country Life. 



Leigh Hunt's Tale for a Chimney Corner. 



Mallory's Mort d' Arthur : Selections. 



Pascal's Provincial Letters. 



Rochefoucauld's Maxims and Reflections. 



LONDON : CHATTO & WINDUS, 214, Piccadilly, W. 



To Museums, Private Collectors, etc. 



INSECTS IN AMBER 



Mare Specimens of Real Amber Pieces, containing 

 all Jiinds of Insects, always to be 7iad 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.C. 



ESTABLISHED 1851. 



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For the encouragement of Thrift the Bank receives small sums on 

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FRANCIS RAVENSCROFT, Manager. 



HOW TO PURCHASE A HOUSE FOR 

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FRANCIS RAVENSCROFT, Manager. 



