ICRCSCOPICAL INSTITUTE. 



E. THUM, 35 BRUDERSTRASSE, LEIPZIG. 



SPECIALTY: 



DIATOMS, TEST, A .D TYPENPLATTEN. 

 CATALOGUE FREE. 



NATURAL HISTORY JOURNAL L SCHOOL REPORTER. 



Intended for Beginners ; 3/- per Year. 



Monthly, except Januarij, July, and August. 



Specimen Copy, Id. Stamp. 

 Address: J. E. CLARK. 20, Bootham, York. 



FRICB 12s. 



(Registered.) Anew self-centering Turn Table, acknowledgecJ to be the best yet introduced, desigrie* 



and manufactured by H. P. AVZtWA.R.I>; 

 Dealer in Microscopes, Apparatus, and all kinds of Microscopical Material,' 



164, OXFORD STREET, MANCHESTER (near Owen's College) 



Aylward's Working Microscope. (For Review see the Northern ilJf/owco^JiVjfAugust, 

 1881). The original form, which has been most highly praised, has recently been much 

 Improved by ]\Ir. Aylwai-d. 



Aylward's Mounting Case contains every requisite portably packed. 



Microscopical Specimens by all the best preparers ; unmounted material of all kinds. 



Special notice is directed to the NEW POND-LIFE COLLECTING APPAEATUS, which 

 has been so favourably noticed in the leading Microscopical and Scientific Journals, and 

 highly recommended by all who have used it. It is generally admitted to be the best 

 introduced. Designed and manufactured by H. P. Aylwahd. 



Ayjward has devoted special attention to the production of thin cover glasses, and 

 supplies them in squares, circles, and ovals. Microscopical slips with ground 

 edges, etc. Special quotations to the Trade and Shippers. 



Mr 



NATURALIST REPRINTS, No. 1. 



List of Land & Freshwater liollusca of Lancashire, | 



BY ROBERT STANDEN. \ 



This paper contains not only Mr. Staiiden's own observations, but also those 

 of Messrs. R. D. Darbishire, T. Rogers, W. H. Heathcote, J. A. Hargreaves, F. i 

 C. Long, H. Stephenson, and other conchologists ; and the observations published i 

 in Dyson's list of 1850 and in Hardy's lists of 1804 and 1805 are reproduced f.-ix] 

 comparison. 



Leeds, 1887. Price 9d. (by Post, 9Ad.) 

 To be had from the Publishers of The Natcrallst, I'ark Row, Leeds. 



