LIST OF GEOLOGICAL MAPS AND SECTIONS, 



PUBLISHED BY MESSBS. LONGMAN AND Co., FOR HER MAJESTY'S STATIONERY OFFIC 



[THESE Maps consist of the Maps of the Ordnance Survey, Geologically Surveyed and Coloured by 

 Geological Survey of Great Britain, by the Authority of Her Majesty's Government, under the Superintend^ 

 of Sir HENRY DE LA BECHE, Director-General of the Geological Surveys of the United Kingdom. The vari 

 Formations are distinctly traced and coloured in all their Geological Subdivisions.] 



GREAT BRITAIN The Counties of which the Geological Survey is completed, are 



CORNWALL, including Sheets 24, 25, 26, 29, 30. 31, 32, and 33. Sheets, it 5s. I The Geology of these two Com- 



{ is amply illustrated by Sir 

 DEVONSHIRE, including Sheets 20, 21, 22, 23, 24, 25, 26, 27, and 29. Sheets, 2Z. 1 Is. [ De la Heche's Report. 8vo. 



GLAMORGANSHIRE, including Sheets 20, 36, 37, 41, and 42 (SE. & SW.). Sheets, 2/. { H " mu^trat^hu County. 

 MONMOUTHSHIRE, including Sheets 35, 36, 42 (SE. & NE.), & 43 (SW.). Sheets, \l. 1 Is. { "^"u 



1 9. [Half of Somerset, and part of West Wilts.] 1 1 s. 6d. 



20. [West Somerset, and part of Soutli Glamorgan.] 5s. Gd. 



21. [SW. Somerset, NE. Devon, and part of West Dorset.] 10s. 



22. [Part of SE. Devon.] 7s. 



23. [Devon between Torbay and Star Point.] 3s. 



24. [Part of South Devon and Cornwall.] 3s. 6d. 



25. [SW. Devon and East Cornwall.] 10s. 



26. [West Devon and NE. Cornwall.] 6s. 



27. [Devonian Rocks.] 3s. 6rf. 



28. [Lundy Island.] 2s. 6d. 



29. [The North of Cornwall.] 2s. &d. 



30. [Part of Corn wall.] 7s. 6rf. 



31. [Part of Cornwall.] 7s. 6d. 



32. [Part of Cornwall.] 3s. 



35! [Western Gloucester, the SE. of Monmouth, part of North | 57 NE*" [Part of Cardiganshire.] 2s. 6d. 

 Somerset and West Wilts.] 10s. i 57 SW. [Part of Cardiganshire.] Is. 6d 



41. [Most of Carmarthen, parts of North Glamorgan, Soi 



Cardigan, and East Pembroke.] 8s. 



42 NW. [West Brecknock and part of East Carmarthen.] 2s 

 42 NE. [Part of East Brecknock and West Hereford.] 2s. 

 42 SW. [The SW. of Brecknock, part of North Glamorgan a 



East Carmarthen.] 2s. 6d. 



42 SE. [Completes the NE. of the Glamorgan and Monmoi 



Coal Field.] 3s. 



43 NW [The Old Red Sandstone, and part of the Silur 



Strata of Woolhope.] 2s. 

 43 NE. [Completes the Silurian District of Woolhope, with 



Malvem Country as far North as the Wych.] 2s. 6d. 

 43 SW. [The West of" Dean Forest Coal Field.] 3s. 

 43 SE. [The greater part of Dean Forest Coal Field, &c.] I 

 57 NW. [Part of Cardiganshire, on the Coast.] Is. 



36. [The greater part of Glamorgan on the West, and Monmouth 



on the East.] 13s. 



37. [West Glamorgan and South Carmarthen.] 8s. 



38. [South Pembroke.] -Is. 



39. [Small's Light, Pembroke ; Bishop and his Clerks.] 2s. 6d. 



40. [North Pembroke and West Carmarthen.] 8s. 



SE. [Part of Cardiganshire.] 2s. 

 [Part of the Coast of Cardiganshire and North Pembrc 



shire.] 2s. 6d. 



59 SE. [The North of Cardiganshire ; part of the West of M 



gomery and the South of Merionethshire.] 3s.\ 

 59 SW. Sea. (No Geological Colouring.) 6<f. 



INDEX to the COLOURS and SIGNS employed in the Geological Survey of Great Britain for South Wes 

 England and Wales. 8s. 



HORIZONTAL SECTIONS, 



(Constructed by the Geological Survey of Great Britain,') illustrative of the Survey's Geological Map. 



These Sections are drawn to a scale of six inches to a mile, horizontally and vertically, and describe in detail the Geology ol : 



Country over which they are drawn. Descriptions are engraved on each plate, thus rendering each Section a concise Report ol ! 



district it traverses. The size of each plate is 3 ft. 3 in. by 2 ft. 3 in. They are engraved on Copper by Mr. Lowry, and colour i 

 accordance with the Maps. Sheets 1 to 17, price 7s. each. 



VERTICAL SECTIONS, 



Illustrative of the Horizontal Sections and Maps of the Geological Survey of Great Britain. 



istrate such details as 

 ,..v, the Thickness of each 

 and Amount of Ironstom i 



I RE LAN D MAP OF WICKLOW, 7s. 6d. MAP OF CARLOW, 7s. Gd. MAP OF KILDARE, 7s. i 

 HORIZONTAL SECTIONS, &.C. 



No 1. From the Coal Measures of Queen's County to the Rock of Arklow, County Wicklow. > 

 No. 2. From near Dunlavin, across the summit of Lugnaquilla to the Sea near Johnstown. 

 No. 3. First. From Glencree across Sugar-loaf Hill. 



Secotid. From Lough Tay to near Five Mile Point. I 7s. eacl i 



Third. From near Baltinglass to Lugnaquilla. 



No. 4. From near Kilcullen, County Kildare, to Mizeuhead, County of Wicklow. 

 PLAN and SECTIONS of the OVOCA MINES, County Wicklow. 



BOOKS Published under the Superintendence of the Geological Survey. 



REPORT on CORNWALL, DEVON, and WEST SOMERSET. By Sir H. T. DE LA BECHE, F.R.S. , 



8vo. 14s. 

 FIGURES and DESCRIPTIONS of the PALAEOZOIC FOSSILS in the above Counties. By PROFE < 



PHILLIPS. 8vo. 9s. 



THE MEMOIRS of the GEOLOGICAL SURVEY of GREAT BRITAIN, and of the MUSEU R 



PRACTICAL GEOLOGY in LONDON. 8vo. Vol. I., 21s. ; Vol. II. (in 2 Parts 21s. each), 42s. 

 FIGURES and DESCRIPTIONS illustrative of BRITISH ORGANIC REMAINS. 



Decade I. Asteriades and Echinidee. Decade II. Trilobites. 8vo. 2s. 6d. 4to. 4s. Gd. each. 



V A Detailed list, and an Index Map, may be obtained of Messrs. ZiONGMAN and C < 



