ADVERTISEMENTS. 



TO GEOLOGISTS. 



RED AND WHITE CHALK of Speeton and East Yorkshire. The charac- 

 teristic and rarer Fossils of the above formations constantly on sale at 

 Bridlington. Address as under. 



Edward Tixdall, Old Guildhall, Bridlington. 



SOWERBY, CONCHOLOGIST AND PUBLISHER. EstabHshed 50 Yeai^s ; 

 from opposite the British Museum. Having the largest and finest Stock of 

 Minerals, Fossils, and Shells, they can be offered at prices lower than any other 

 estabhshment in the -world. 



The Geological, ]Mineral, and other Collections, having every specimen with the 

 scientific name attached, and being systematically arranged, afford the greatest 

 facOity to students. 



CABINETS. 



Mahogany Cabinets are made to any size, of the best seasoned woods, which 

 have been stacked for many years. 



A 4-drawer mahogany French-polished Cabiaet, enclosed by 



folding doors, lock and key £0 17 6 



A 5-drawer larger ditto ditto ditto . .110 



A 6-drawer ditto ditto ditto . .17 0 



A 7-drawer ditto ditto ditto . . 1 17 0 



An 8-drawer ditto ditto ditto . . 2 10 0 



SowEEBY, 167, Strand, London, W.C. 



TO be had, with advantage on direct application, at G. B. SOWERBY' S 

 NATURAL HISTORY AGENCY OFFICES, 32, GREAT RUSSELL 

 STREET, BLOOMSBURY. 



The Illusteted Index op Beitish Shells, containing Coloured Figures of 

 aU the Species known. 30s. G. B. Sowerby, F.L.S. 



The Thesal-eus Conchylioelti. 19 parts. 25s. each part. G. B. Sowerby. 



Beitish Wild Flo wees. 20 parts, at 3s. each. J. E. Sowerby. 



" Memoires sur les CoraUaines des Antilles." 12s. 6d. Duchassaing et 

 Michelotti. Just published at Turin. With plat«s. 



" Appunti sulla Geologia del Piemonte." 16s. 6d. Sig. B. Gastaldi. 



" Cenni sui Yertebrati Fossile del Piemonte." 10s. 6d. Sig. B. Gtistaldi. 



G. B. Sowerby has for Sale a Collection of 1,000 species of Shells ; a ditto of 

 1,600 British Plants, arranged and named in cases ; Tertiary Fossils from Turin ; 

 Crustacea and Fruit fi:-om Sheppy ; many specimens of Shells, Fossils, and 

 Miuerals ; various Books. 



Collections named, arranged, or prepared for sale. 



32, Great Russell Street, Bloomsbury. 



FOSSILS. 



A GENTLEMAN, having a LARGE COLLECTION of DUPLICATE SPE- 

 CIMENS from the English Tertiary and Oohtic Formations (including a 

 Fine Series of Stonesfield Fossils) is desirous of Entering into Communication 

 with any one having a Collection of Mineeals to Exchange for Fossils. 



Address A. A., " Geologist" Office, 156, Strand. 



