c?o i«^ cj no i^o <5"5r . 



G. B. SOWER BY, \{i constant receipt of 

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Books by G. B. SOWERBY, F.L.S. : 

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RECENT PUBLICATIONS OF THE ASSOCIATION. 



THE EOCENE AND OLIGOCENE BEDS OF THE PARIS BASIN, by G. F. Harris 



and H. W. Burrows. Demy 8vo, pp. viii., 129, with Index of Genera and General Index, 

 Lists of Fossils, Sections, and a folding Map. 5s. net. 



RECORD OF EXCURSIONS. Pp. vii., 572, with 3 Maps, 214 figures in text, and 

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E. STANFORD, Publisherto the Association, 26&27C0CKSPUR ST., LONDON, S.W. 



Watl^m^^Donca^teP, 



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l^aturalists, 



36 STRAND, LONDON, W.C. 



(Five doors from Charing Cross), 



EEP in stock every description of Apparatus and 

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Ournew Label-List of British Macro-Lepidoptera, 



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useful Label and Exchange-Lists of Lepidoptera, Birds' 



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An Enormous Stock of British, European 



and Exotic Butterflies, and British 



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A detailed Price List sent post free on application 



MARINE ZOOLOGY, 



Some New Microscopical Slides: — 



Craspedote Medusa, various species 1/6 



Luceriiaria, showing tentacular origin of marginal 



bodies; a most beautiful preparation 2/- 



Triple stained sec. of Anemone (/I if(jw!Stfl) i/- 



Vertical sec. of /I s/ff>»'a, ovaries, ambulacrals, &c. ... 1/6 



Othonia, a typical Serpulid, with caudal eye-spots ... 1/3 



Salpa, Solitaria stage, an unusually fine slide ... 2/- 

 Compound Ascidian (Folyclinum), vert, sec thro' ... 



colony t/4 



Young Amphioxus, eye and rudiments of gill-slits ... 1 '6 



Dissecting Specimens for all Science Exams. 



Museum Preparations: — Specialities in 

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The Midland Naturalist, 



A Monthly Natural History Magazine 

 and the Journal of the Midland Unipn of Natural History Societies. 



Vol. XVI. commenced. January, 1893. 



London : ^im[\I^in, Marshall \ Co., Ltd. BMqggam: Cornish M$, 



