ADVERTISEMENTS. 
7' 
TO GEOLOGISTS. 
RED AND WIIITE CHALK of Spccton and East Torkshiro. Tho charac- 
teristic and rarer Fossils of tho above formations constantly on sale at 
Hridliiiyton. Address as under. 
Edwakd Tindall, Old Guildhall, Bridlington. 
SOWERBY, CONCHOLOGIST AND PUBLISHER. EstabUshed 50 Yeai-s; 
from opposite the British Museum. Having the lai-gest and finest Stock of 
Minerals, Fossils, and Shells, they can be offered at prices lower than any other 
estabUshment in tho world. 
The Geological, Mineral, and other Collections, having every specimen with the 
scientific name attached, and being systemsiicaUy arranged, aflbrd tho greatest 
facUity 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-poUshed Cabinet, enclosed by 
folding doors, lock and key 
£0 17 
6 
A 5 -drawer larger ditto 
ditto 
ditto ' . 
1 1 
0 
A 6-drawer ditto 
ditto 
ditto 
1 7 
0 
A 7-di-awer ditto 
ditto 
ditto 
1 17 
0 
An 8-drawer ditto 
ditto 
ditto 
2 10 
0 
SowEKBY, 167, Strand, London, W.C. 
FOSSILS DISCOVERED IN THE EXCAVATIONS FOR THE MAIN 
DRAINAGE. 
TO GEOLOGISTS, NATURALISTS, AND THE PUBLIC. 
GREAT NOVELTY.— NEW STEREOSCOPIC SLIDE. No. I., price Is., 
CYRENA DULWICHIENSIS ; a new and beautiful species of Estuarine 
Shell, discovered by Mr. Charles Rickman, Honorary Curator, Lambeth 
Museum of Natural History, in Lower Eocene Strata at DuJwich, 60 feet from the 
surface. Photographed from the original, as engraved in the Illustrated, London 
News, Saturday, March 24th, 1860, and Oeologist for April. 
Published by J. Waenee, Optician, 72, Fleet-street, to whom aU orders are to 
be addressed. 
N.B. — Sent free by post on receipt of 14 postage stamps. 
MINERALOGY. — Eang's College, London. — Professor Tennant, F.G.S., 
commenced a course of Lectures on Mineralogy, yrith. a view to facilitate the 
study of Geology, and of the application of Mineral Substances in the Arts. 
The Lectures began on Friday, Octooer 5th, at Nine O'Clock, a.m. They 
wUl be continued on each succeeding Wednesday and Friday at the same hour. 
Fee £2 2s. R. W. JELF, D.D., Principal. 
