ADVERTISEMENTS. 
7 
TO GEOLOGISTS. 
n ED AND WHITE CHALK of Speoton and East Yorkshire. The cliarac- 
jX toristio and rarer Fossils of the above formations constantly on sale at 
Bridlington. Address as under. 
Edwakd Tindall, Old Guildhall, Bridlington. 
SOWERBY, CONCHOLOGIST AND PUBLISHER. Established 50 Years j 
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 
establishment in the world. 
The Geological, Mineral, and other Collections, having every specimen with the 
scientific name attached, and being systematically arranged, aiford the greatest 
facility 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 Cabinet, enclosed by 
folding doors, lock and key 
. £0 17 
6 
A 5-drawer lai-ger ditto 
ditto 
ditto 
. 1 1 
0 
A 6-drawer ditto 
ditto 
ditto 
. 1 7 
0 
A 7 -drawer ditto 
ditto 
ditto 
. 1 17 
0 
An 8-drawer ditto 
ditto 
ditto 
. 2 10 
0 
SoWERBY, 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 Dulwich, 60 feet from tho 
surface. Photographed from the original, as engraved in the Illustrated London 
News, Saturday, Mai'ch 24th, 1860, and Geologist for April. 
Published by J, Warner, Optician, 72, Fleet-street, to whom all orders are to 
be addressed. 
N.B. — Sent free by post on receipt of 14 postage stamps. 
MAPS, PLANS, SECTIONS, and DRAWINGS on STONE and WOOD, 
ENGRAVINGS on METAL, WOOD, and STONE, LECTURE DIA- 
GRAMS, and all kinds of SCIENTIFIC ILLUSTRATIONS, LITHOGRAPHIC, 
COPPER-PLATE, WOOD-CUT, and GENERAL PRINTING, and BINDING 
are executed at the Office of 
The " GEOLOGIST," 22, Southampton-street, Strand. 
Authors' manuscripts revised and prepared for the press, and estimates given for 
complete works. 
