IN PREPARATION, 



f 



A MONOGRAPH OF THE LAND & FRESHWATER MOLLUSC 



OF THE 



BRITISH FAUNA 



This Work is intended to he thoroughly Exhaustive, and will fully illustrate Variatic 

 Structure and Development. 



Co-operation is invited from all Conchologists interested in above subject. Anj' information, or 

 specimens illustrating the Life History — structure, development, variation, distribution, 

 ETC. — will be welcomed and carefully acknowledged. Address: — Care of Mr. J. W. TAYLOR, 

 OfBce of The Journal of Conchology, St. Ann Street, Leeds. 



I' 



isroTiCE.. ~ \ 



The First Volume of the Quarterly Journal of Conchology 

 can now be had, Price 20/-, or separate numbers to 

 complete sets, at I/- each. No. I, 1/6 each. 



The Second and Third Volumes may still be had. 



LEEDS: TAYLOR BROTHERS, ST. ANN STREET. 



f 



"THE 2:TATTJRALIST," 



Journal of the Yorkshire Naturalists' Union and General Field Club Record. 



Edited by C. P. HOBKIRK, F.L.S., and O. T. PORRITT, F.L.S. 



Monthly price Ad. or ^s. per annum (in advance). 



Containing Original Articles on Natural History subjects ; Papers read at 

 Meetings of Natural History Societies and Field Clubs; Reports of Meetings and 

 Excursions ; Notes and Queries ; Exchanges, &c. 



The Volume commences August in each year ; Volume VIII. commenced August, 

 1882. Post Free of 



B. BROWN, PUBLISHER, HUDDERSFIELD. 



^jj^ AMEBIQAST ITATTJEALIST. 



The proprietors have associated with Professors Packard and Cope, its principal 

 editors, a number of leading scientists, whose names are a guarantee of editorial ability, 

 as Dr. C. O. Whitman (Microscopy), Prof. Henry Sewall (Physiology), Prof. C. E. 

 Bessey (Botany). Prof. O. T. INIason (Anthropology-), Prof C. V. Riley (Entomology), 

 Prof. H. Carvill Lewis (Mineralogy), and Mr. Ellis H. Yarnall (Geographical 

 Exploration). 



It has been the aim of the Naturalist to preserve its well-known national 

 character, which is illustrated in the wide distribution of its editorial responsibilities. 



It appears to be the most favored medium of publication of the naturalists and 

 biologists in the United States, when they wish to bring the results of their investiga- 

 tions before the general public in a more or less popular form. It is the only magazine 

 in the world to-day, ivhich keeps its readers en rappoii with the zvork of Americans in 

 the field of the natural sciences. The NATURALIST publishes 112 large octavo pages 

 per month, with numerous illustrations. Yearly Subscription, 18s, 31s. 6d. will 

 pay for two years' Subscription, and 45s. for three. Single numbers. Is. 6d. 



McCALLA & STAVELY, 237—9, Dock Street, Philadelphia. 



English Agents .-—TRUBNER & Co., 67 & 69, Ludgate Hill LONDON. 



CR QdWFRRV ^' ^^^^'^ RUSSELL ST., LONDON, 

 ■ Di UUIfLllUIj names and arranges Specimens and Collections 

 of SHELLS, for Public and Private Museums; supplies Desiderata and 

 entire Collections from a large and valuable Stock, which is constantly 

 being replenished by novelties from various parts of the World. 



Price Lists on Application. Specimens sent for Selection. 



