GBOLOGISTS' fISSOGIATION. 



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Meetings are held at University College, Gower Street. For terms of Membership apply to 

 the Secretary, C. Davies Sherborn, 540 King's Road, Chelsea. 



The MAY and JULY Nos. of the PROCEEDINGS are now ready, price Is. 6d. each. 



The May Number contains articles by Professor J. F. Blake on the 

 Classification of Ammonites ; W. Topley on the Landslip at Sandgate ; 

 G. Barrow on the Origin of the Crystalline Schists. 

 The J ul}'i Number contains accounts of the Fossil Gymnosperms, and of Geo- 

 logical Excursions to Norwich, Cromer, Lowestoft, Brill, Farnham, and 

 other places. 



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 

 complete Index, demy 8vo, cloth. Price 12s. 6d. net. " A valuable addition to British 

 Geology." — Professor T. G. Bonney, F.R.S., in Nature. 



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



Watsl^in^ h Donca^tei' 



l^atitraliats, 



36 STRAND, LONDON, W.C. 



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KEEP in stock every description of Apparatus and 

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Our new Label-List of British Macro-Lepidoptera, 



with Latin and English Names, is. 6d. post free. Also other 



useful Label and Exchange-Lists of Lepidoptera, Birds' 



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An Enormous Stock of British, European 



and Exotic Butterflies, and British 



Birds' Eggs, &c. 



A detailtd Pnce List sent post free on application 



MARINE ZOOLOGY. 



New Microscopical Slides: — 

 Lucernaria, showing tentacular origin of colleto- 



cystophors ... 2/- 



Campanularia angutata. fully expanded, a fine slide 1/6, 2/- 



Podocoryne carnea, a good type slide 



Bougainvillia, fully expanded 



Larval Loligo 



Larval Cirripedes 



Entire adult Clavellina, entire anatomy shown 



Young A mphioxus, showing eye and rudiments of 



gill-slits ... -"... 



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Dissecting Specimens. 



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ANNUAL SUBSCRIPTION (PoST Free), SIX SHILLINGS. 



The Midland Naturalist, 



A Monthly Natural History Magazine 

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



Vol. XVI. commenced January, 1893. 



London : ^impl^in, Mai«hall X^ Co., Ltd. BMiiggam: Coi^nigh M$. 



