THE MANUAL OF CONCHOLOGY. 



Founded by the late Geo. W. Tryon, Jun., continued under the care of the 

 Conchological Section. Academy of Natural Sciences of Philadelphia, by 

 Henry A. Pilsbry, Conservator. 



The Manual of Conehology is a fully illustrated monography of recent 

 molluscs. Issued in octavo form, in quarterly parts. Each part comprises 64 

 (or more) pages of letterpress, and 15 to 20 plates. 



The Second Series is now in progress : the First, Marine Univalves, of 

 which sixteen volumes have appeared finished that series as planned by its 

 illustrious founder. A supplemental volume to this series will be issued this 

 year, to contain the Dentaliidae. Of the present Series, Terrestrial Molluscs, ten 

 volumes have been published, completing Helix with Index. A few copies of 

 Vol. IX, "Guide to the Study of Helices," will be sold separately at the 

 regular subscription price. Separate copies of the Index, suitable for the purposes 

 of a Catalogue or Check list, can also be had at $1.00 each. 



The Monography of the Bulimi was commenced in the tenth volume. 



The illustrations of the Manual have received high commendation, and are 

 fully equal to the best figures of shells published. 



Prices : — Plain (uncoloured) edition, $3 GO per part. Coloured edition, $5.00 

 per part. Fine edition (both coloured and India-tinted plates) $8.00 per part. 



Structural and Systematic Conehology, by Geo. w. Tryon, Jun. 



A Complete Conchological Te.xt Book of 1,200 pages, 140 plates and 

 over 3,500 figures of Genera, Anatomy, &c. Three volumes bound in one. 

 Cloth. Price $6.00. 



For further information or descriptive circular, with sample plates of Manual, 

 address : — 



S. RAYMOND ROBERTS, Treasurer. 



P. O. Address GLEN RIDGE, NEW JERSEY, U.S.A. 



important IReDuctiou of price. 



2 volumes (7 parts with 2 Supplements) 2061 pages, 

 Royal Octavo, 1886-1890. 



DR. C. A. WESTERLUND'S 



FAUNA OF THE PALAEARCTIC LAND AND FRESH -WATER MOLLUSCA, 



(In German Language). 



Reduced in Price from £t,. gs. od. to £2. is. od. post free. 



After the sale of a limited number of cojnes the original price luill again be charged. 



R. FRIEDLANDER & SOHN, BERLIN, N.W. 



THE JOURNAL OF CONCHOLOGY, 



THE ORGAN OF THE CONCHOLOGICAL SOCIETY 

 OF GREAT BRITAIN AND IRELAND. 



HON. SECRETARY, W. E. HOYLE, M.A., 



The Owens College, Manchester. 

 Annual Subscription, 5s. 



The number for January, 1901, commences a new volume 

 and contains a list of British Marine Mollusca, revised and 

 brought up to date by a Committee of the Society. 



Please mention this Journal in replying to Advertisements. 



