THE CONCHOLOGIST. 



THE MANUAL OF C0NCH0L0GY. 



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 Conchology is a fully illustrated monography of recent 

 molluscs, arranged according to natural affinities, and includes a large number of 

 species never before figured or new to science. 



Issued in octavo form, in quarterly parts. Each part comprises 64 (or more) 

 pages of letterpress, and 15 to 20 plates. 



Two series are now in progress: the First Series, Marine Univalves, of 

 which thirteen volumes have appeared, and the Second Series, Terrestrial 

 Molluscs, of which seven volumes are completed. 



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*00 per part. Coloured edition $ 5'oc 

 per part. Fine edition (both coloured and india-tinted plates) $ 8'00 per part. 



Structural and Systematic Conchology, by Geo. W. Tryon, Jun. 



A Complete Conchological Text 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 plate of the 

 Manual of Conchology, address : — 



S. RAYMOND ROBERTS, Treasurer, 



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



THE BRITISH NATURALIST. 



AN ILLUSTRATED. MAGAZINE OF NATURAL HISTORY. 



Conducted by JOHN E. ROBSON, F.E.S. 



Contains Articles and Notes on General Zoology by well known writers. 



Molluscan Section : Conducted by Messrs. W. A. Gain and Brockton Tomlin. 



A series of portraits of "Naturalists of the day" are now appearing. 



Special Supplements. Societies' Reports. General Notes. 



Annual Subscription, 6/-. 



All communications to be addressed : John E. Robson, Hartlepool. 



R. FRIEDLANDER & SOHN, 



CARLSTRASSE 11, BERLIN, N.W. 



Just published, our Catalogue of the Literature on 



MOLLTJSCA. 



106 pp., in roy. oct., with 2,500 titles of books, periodicals, papers, &c. 



Contents : — 



1. Scripta miscellanea. 2. Faunae Malacologicse. 3. Gasteropoda. 



4. Lamellibranchiata. 5. Heteropoda, Pteropoda, and Scaphopoda. 



6. Cephalopoda. 7. Molluscoidea (Bryozoa, and Brachiopoda). 



8, Tunicata (Ascidae and Salpae). 9. Mollusca fossilia. 



No previous Catalogue has ever been published containing so complete a list 



of conchological literature. 



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