ADVERTISEMENTS. 



3 



NEW WORKS PUBLISHED 



AT THE "GEOLOGIST" OFFICE, 156, STUAND. 



'Now ready ^ 8i!0., with Five 4to. PlateSy price 7s. 6d. 



A MONOGRAPH OF THE SCOTTISH CARBON- 

 IFEROUS BRACHIOPODA. 



BY THOMAS DAVIDSON, Esq., F.R.S., F.G.S. 



London: "Geologist" Office, 156, Strand. 



SIR RODERICK I. MURCHISON'S 

 NEW GEOLOGICAL 



SKETCH MAP OF SCOTLAND. 



This Map, containing the recent most important groupings of the Scotch Rocks 

 by Sir Roderick I. Murchison, is, under his authority, now published at the 

 " Geologist" OflBce, 156, Strand, accompanied by an Explanation op the 

 Details. 



London : " Geologist" Office, 156, Strand, and through all Booksellers. 

 Price Is. 6d. 



FOSSILS DISCOVERED IN THE EXCAVATIONS FOR THE MAIN 

 DRAINAGE. 



TO GEOLOGISTS, NATURALISTS, AND THE PUBLIC. 



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GREAT NOYELTY.— NEW STEREOSCOPIC SLIDE. No. I., price Is., 

 CYRENA DULWICHIENSIS ; a new and beautiful species of Estuarine 

 Shell, discovered by Mr. Charles Rigkman, Honorary Curator, Lambeth 

 Museum of Natural History, in Lower Eocene Strata at Dulwich, 60 feet from the 

 surface. Photographed from the original, as engraved in the Illustrated London 

 News, Saturday, March 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. 



