344 



CATALOaHE OP THE GOYEEIS-MEKT SUEYEY MAPS AKD 



SECTIOi^S. 



The following list cannot fail to be of utility to every practical geologist as a 

 table of reference, and its usefulness avlU be felt by others, who are, perhaps, in 

 ignorance, as many undoubtedly are, of even the existence of these valuable 

 geological maps and sections. 



The reason of such ignorance is, probably, that Her Majesty's Government do 

 not aUow usual trade-commission to the booksellers, who will not, therefore, obtain 

 them, except for such good customers as they cannot refuse, as these publications 

 bruig to them no profit, and often incur actual expense. 



Provincial geologists, moreover, find it no easy matter to ascertain what 

 portions of the country have been examined, and plotted, and coloured upon the 

 ordnance maps, by the Government officers, and it is still more difficult to obtain 

 information of the sections, and of the " decades " of fossils. 



The publications enumerated below are not only of geological, but of great 

 national value, and it is therefore very desirable to make known to our readers 

 that they can be obtained in London, of Mr. Stanford, mapseller and publisher. 

 Charing Cross ; of Messrs. Longman, the Government publishers. Paternoster 

 Row; and of Messrs. Letts and Son, Royal Exchange. 



By the courtesy of Mr. Stanford we are enabled to append to this paper a 

 reduced index map of the di^dsional portions of the survey, which will greatly 

 facilitate the object of this catalogue. 



THE GEOLOGICAL MAP AlU) SECTIOIs^S OF ENGLAl^D AXD 

 WALES. 



The maps are on the scale of one inch to a mile. They are the Ordnance maps, 

 specially adapted and coloured geologically, under the superintendence of the 

 jDii'ector- General of the Survey. 



The longitudinal or horizontal sections are on separate sheets, on a scale of 6 

 inches to a mile. 



The vertical sections are on a scale of 40 feet to an inch. 



The map is divided into 110 divisions or sheets, about 50 of which are published, 

 and 20 in ]3rogress of sm'vey. 



Some of the maps are printed in a single sheet, 27 inches by 40 — others in 

 quarter sheets. 



The price of the Geological Maps is 2s. 6d. per quarter sheet, and 6s. per sheet 

 except where th^ sheet is chiefly occupied by sea, when it is Is. per sheet. 



COUNTIES OP Els-eLAIfD AIx'D WALES PAETLY PrBLISHED, TOGETHEH WITH 

 THEIE SECTIO^iTS. 



XcTE. — The nmnbers distinguish the sheets of the map, and indicate th 

 locality included in each, as shown in the accompanying Index Map. The initials 

 N.E., S.W., S.E.) denote the quarter di\ision. The abbreviations used 

 are, Sh., for sheets; Hor., for horizontal; Vert., for vertical sections. 



Ax&LESEA. — Sh. 77; 78, price lis. 

 Bedfoedshiee. — tfnsurveyed. 

 Beekshiee. — In progress. 

 Brecknoceishiee. — Sh. 36, 41, 42, 



56 X.W. S. W., 57 N.E. S.E. ; 32s. 



Hor. Sect., sheets 4, 5, 11; 15s. 



Vert. Sect., sheets 4, 10; 7s. 

 BrcKiNGHAMSHiEE, — Commenced. 

 Cambeidgeshiee. — Unsurveyed. 

 Caediganshiee.— Sh. 40, 41, 56 N.W. 



S.W., 57, 58, 59 S.E., 60 S.W. ; 



33s. 6d. Hor. Sect., sheets 4, 5 ; 10s. 

 Carmaethenshiee.— Sh. 37,38,40,41, 



42 N W. S.W., 56 S.W., 57 S.W. S.E. 

 . 33s. 6d. Hor. Sec, sheets 2, 3, 4, 7 

 8, 9 ; 30s. Vert. Sect., sheets 3, 4, ^ 

 6, 13, 14 ; 21s. 



CAEifAETOJrSHIEE & AlTGLESEA. — Sh. 



74 is^.W., 75, 76, 77, 78, 79 K.W. 

 S.W. ; 32s. 6d. Hor. Sect., sheets 2 

 31; 10s. 



Cheshiee. — Sh. 73 N.W. 79 N.B 

 S.E., 80 S.W. 10s.; X.E., 80 S.E 

 X.E. N.W., 81 X.W. S.W., 88 S.E 

 S.W., {in progress.) 



