The Editor requests that contributors will bear in mind the POPULAR 

 character of The Geologist, and endeavour to make their articles explicit 

 and intelligible to general readers. 



Students or others wishing for information on particular points of 

 Geology, or for explanation of Geological terms and phrases, are requested 

 to address their questions to the Editor of The Geologist. Answers 

 will be given to them in the ensuing number of the Magazine. 



Letters and communications by Post, specimens, books for review, and 

 parcels for this Magazine, to be addressed to The Editor of the Geologist, 

 154, Strand, London, W.C. to whom all advertisements maybe addressed. 



The Editor requests subscribers to forward their names and addresses 

 direct to himself, to insure correctness of delivery. 



The Geologist is sent by Post free to Subscribers for six months on 

 receipt of a Post-OAce order for 5s. 9d., or 6s. in Postage Stamps ; Post- 

 Office orders are to be made payable to the Editor, at the Charing Cross 

 Post-Ofi&ce. 



Geologist Office, S. J. MACKIE, 



154, Strand. Editor and Propinetor. 



CORRESPONDENTS. 



Communications received from J. IT. Wood, Esq. Nottingham; Rev. P. B. Brodie, 

 Eowington; J. E. AYakefield, Highgate; T. S. Fernon, Esq.; H. C. Salmon, Esq. 

 Plymouth; M. Jules Marcou; Mr. Mark Norman, Ventnor, Isle of Wight; W. P. 

 Jun, Regent's Park ; C. Evans, Esq. Hampstead ; " Beta ; " " Amateur ; " " X. Y. Z." 



BOOKS RECEIVED. 



Letter on Some Points of the Geology of Texas, by Jules Marcou, Zurich, 1858. 

 Illustrated Guide to Swanage and the Isle of Purbeck, by P. Brannon. London : 

 Longman & Co. 

 The Mining Journal. 



Preparing for publication, in post 8vo. price to Subscribers, 5*. 



'^fHE CHALK CLIFFS OF DOYEE ; a Geological and 



*- Paleontological Description of the typical section of the English Upper Cretaceous beds. — By 

 S. J. Mackie, F.G.S. F.S.A. 



Of the beautiful and instructive section of the Chalk Strata at Dover, there exists no other descrip- 

 tion tlian the original and admirable paper by William Phillips in the Geological Transactions of 1818. 

 The author's long and intimate acquaintance with this locality gives him peculiar facilities for pre- 

 senting in a light and readable form a concise and accurate account of the White Cliff? of this 

 celebrated shore, and which he trusts will be thought worthy of being regarded as a text-book 

 generally for the chalk districts of England. 



The proposed work will be illustrated by first-class woodcuts, and will be issued to Subscribers at the 

 price of Five Shillings. Subscriptions will be received by the Author, 17, Park-terrace, Claphara, S. 



London : J. Van Voorst, Paternoster row. 



SUBSCRIBERS' NAilES ALREADY RECEIVED. 

 Addiiional Names received : — 

 Lieut. F. W. HuTTON, 23d Royal Welsh Fusileers. 

 James Mushen, Esq. 10. Calthorp Street, Birmingham. 

 LoNSDAi E Bradley, Esq. M.R.A.C. Prior House, Richmond. Yorkshire, 

 H. C. SoRBY, Esq. F.G.S. Bromfield, Sheffield. 



