E,E lE^E^IIsr TS. 



AUTHORS of Papers who may wish additional copies of their Articles, may have 

 them on payment of the Printer's Charges as below (such reprints to be 

 ordered when the MS. is forwarded for publication) : — 



25 copies 4 pp. 3/6. 8 pp. 4/6. 12 pp. 8/-. 16 pp. 10/6. 



5° „ ,, 4/6. „ 6/6. „ 10/-. „ 12/6. 



100 ,, „ 6/6. ,, 9/-. „ 12/-, ,, 15/-. 



Will be inserted at the following rates : — 



Whole Page ... ... ... 20/-. Quarter Page... ... ... 7/-. 



Half Page ... ... ... 12/6. Six lines or under ... ... 3/6. 



One-Third Page ... ... 8/-. Every additional line ... -/6. 



G~0 QOWERBY, 121, FULHAM ROAD, London, S.W. 

 . J3. O (Removed from 45, Great Russell Street), has 

 probably the Largest STOCK OF RECENT SHELLS of any dealer in the 

 world, from which selections may be made on the premises or specimens sent for 

 selection. 



COLLECTIONS Illustrative of Generic and Sub-generic Forms, and Species, 

 from 100 to 5,000 species from £1 los. to ^^300. 



Museums, Private Collections, and Specimens Classified, Named, and 

 Arranged. 



THESAURUS CONCHYLIORUM, by G. B. Sowerby. Part 44 (com- 

 pleting the Fifth Vokime) contains a completion of the Monographs of the Genera 

 CONUS and VOLUTA, with Thirteen Coloured Plates. Price, £1 5s. 



ILLUSTRATED INDEX OF BRITISH SHELLS. New Edition, 

 Enlarged and Revised, with Twenty-six Coloured Plates, giving a figure of every 

 known British species. Price, £1 15s. 



THE SCOTTISH NATURALIST, 



A QUARTERLY MAGAZINE OF NATURAL SCIENCE. 

 Edited by Professor Trail, Aberdeen. 

 Annual Subscriptions, payable in advance, 4s. 6d., post free. 

 Articles and communications for the Magazine should be sent to the Editor 

 before the ist of December, March, June, or September, if intended for publication 

 in the January, April, July, or October numbers respectively. 



Orders for copies, subscriptions, &c. , should be sent to S. CoWAN & Co., Peith, 

 from whom also Terms for Advertising may be had. 



THE MARINE MOLLUSGA OF ROUSILLON: 



DESCRIPTIVE AJ^D SYMOKYMIC. 



FORMING ONE VOLUME, ACCOMPANIED BY PHOTOGRAPHIC PLATES. 



By E. BUCQUOY and M. DAUTZENBERG. 



Price 4 FRANCS PER PART, Payable on Receipt of Part. 



The work will be completed in 8 or 10 parts, and 5 photographic plates in each part. 

 Subscriptions to be sent to 



M. PH. DAUTSENBEEG, 213, rue de I'Universite, Paris. 



