June i, 1905] 



jVA TURE 



WATKINS & DONCASTER, 



Naturalists and Manufacturers of 



CABINETS AND APPARATUS 



FOR ENTOMOLOGY, BIRDS' EGGS AND SKINS, AND ALL 

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A LARGE STOCK OF 

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Workmen true to Nature. 



All Books and Publjeations on Natural History supplied. 



36 STRAND, LONDON, W.C. 



(Five Doors from Charing Cross.) 

 S0- yeir Catalogue (llP'i pj).) iii.tt issued, post free. 



ALBERT EDWARD JAMRACH 



(Late CHARLES JAMRACH), 

 NATURALIST, 



180 ST. GEORGE STREET EAST. 



Implements of Savage Warfare, Idols, Sacred Masks, Piiruvian Pottery, 

 Netsukis China. Lacquers, Gongs, Shells, and other Curios. 



MIGROSGOPIGAL PETROGRAPHY. 



Gentlemen interested in the above study are invited to send to 



JAMES R. QREQORY & CO., 



I Kelso Place, Kensington Court, London, W., 



for a Prospectus of 



THE TWENTIETH CENTURY ATLAS OF 



MICROSCOPICAL PETROGRAPHY, 



now being issued in Twelve Monthly Parts, each Part containing Four Fine 

 Half- Tone Plates, and also Four actual Ro.' " ' 



THE NEW COLLECTION OF 



336 SPECIMENS AND SLIDES OF ROCKS, 



according to H. ROSENBUSCH: "Elemente tier 

 Gesteinslehre, 2d ed. 190L'' 



Accompanied by a text-book : " J'racti.a! Pctrograthy," giving 

 description of the polarizing microscope and its application, and ah 

 macroscopical and microscopical features of every spect 

 tion, by Professor Dr. K. Bus;: of the I" " 

 1 collection is intended for the practical use of stuaents, 

 representatives of all important type.s of rocks ; it 

 massive rocks (94 deep-seated rocks, 50 dike rocks, 

 I 28 sedimentary, and 3t crystalline schists. Out of it t\ 

 of 250 and 165 specimens have been selected. The pii 

 i Collection 1. 336 Specimens of Rocks .. 



I ,, la. 336 Slides 



,, II. 250 Specimens of Rocks 



Ila. 250 Slides 



,, III. 165 Specimens of Rocks 



Ilia. 165 Slides 205 



COLLECTIONS OF MINERALS, FOSSILS, METEORITES, 

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The fifth edition of Catalogue No. 4, Petrography, has just 

 been published (210 pages), and will be sent free of charge on 

 application. 



Dr. F. KRANTZ, 



RHENISH MINERAL OFFICE, BONN-ON-RHINE. GERMANY. 



of the 

 of this collec- 

 ■y of Mimsler. This 

 ;, and contains typical 



380 Marks. 



420 



270 



310 ,, 



170 



ESTABLISHED 



TABLE OF RARE ELEMENTS. 



By E. L. N. ARMBRECHT. 



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;ht. Dis 

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LIVING SPECIMENS FOR 

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Volvox, Spirogyra, Desmids, Diatoms, Amoeba, Arcella, Actinosphsrium, 

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 other specimens of Pond Life. Price li. per Tube, Post Free. Helix 

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THOMAS BOLTON, 



25 BALSALL HEATH ROAD, BIRMINGHAM. 



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, Tealia, CaryophylUa, Alcy 



- , Actii _ , , 



Hormiphora (preserved) ; Leptoplana ; Lineus, Amphiporus, 

 Nereis, Aphrodite, Arenicola, Lanice, Terobella ;_^ Lepas, Balanns, 

 Gammarus, Ligia Mysis, Nebalia, Carcinus; Patell; 

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 For prices and more detailed lisu apply to 

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ARMBRECHT, NELSON & CO., 

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N.B.— Sent Free on application. 



MINERALS, ROCKS, FOSSILS. 



A large stock of BRITISH AND FOREIGN MINERALS always on view 



COItl^^ISH ]VXI»rER.A.LiS 



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ROCKS, MINERALS, FOSSILS. 



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Adapted for the Board of Education Examinations in 



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A. largt stock 0/ Minimis. Rocks, Fossils and Microscopic Objtcts for 



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