Eeviems — Geological Survey Memoirs. 169 



Ganges, about 108 miles from Musilipatam. These used to bo 

 farmed out for 300,000 pagodas per annum (£150,000). In 1C7G no 

 less than (J0,000 persons were employed in them. The i)lan oi 

 working was very rude, some of the labourers were employed in 

 digging, others in baling out water by hand, having no mechanical 

 contrivances for that purpose. They sunk shafts ten or twelve 

 fathoms deep, carried out the earth, which was red mixed with 

 white and yellow chalk, and, when dried in the sun, broke and 

 sifted it. 



India now sends no diamonds to market. She gets her gold from 

 England, her silver from China, and her copper from Eussia. Some 

 gold comes from Yarkand in dust, but in small quantities ; also 

 emeralds, rubies, and other gems, precious jade, sulphur, copper, 

 lead, borax, and rock-salt. The mountainous tracts to be crossed, 

 however, prevent, to a great extent, the importation of merchandise 

 from this inhospitable country. 



I. — Memoirs of the Geological Survey of England and Wales. 



I. The Geology of the Carboniferous Limestone, Yoredale Eocks, 

 and Millstone Grit of North Derbvshire, and the adjoining parts 

 of Yorkshire. By A. H. Green, M.A., F.G.S. ; C. Le Neve Foster, 

 B.A., D.Sc, F.G.S. ; and J. E. Dakyns, M.A. Appendix and list 

 of Fossils. By E. Etheridge, F.E.S.E., &c. 1869. 8vo. pp. 168. 

 (London : Triibner & Co.) 



II. The Triassic and Permian Eocks of the Midland Counties of 

 England. By Edward Hull, M.A., F.E.S., F.G.S. 1869. 8vo. 

 pp. 128. (London : Triibner & Co.) 



I. This Memoir is the result of explorations in the field, from 

 1864-7, by the authors whose names are affixed to the paper ; each 

 of whom (with the exception of Dr. Le Neve Foster) describes 

 portions of the country surveyed by himself. The general arrange- 

 ment of the Memoir has been intrusted to Mr. Green. 



The Memoir is prefaced by a useful bibliography of the books and 

 papers relating to the country described from 1700 to 1867, and con- 

 tains a general description of the physical features, geological 

 structure, and drainage of the district, which is followed by a notice 

 of the formations examined, viz. : Mountain Limestone, Yoredale 

 Eocks, Millstone Grit, and Coal-measures. Next follows a detailed 

 description of these formations, as observed in the different localities 

 examined, and occupies more than 100 pages of the Memoir. The 

 Post-Pliocene, and more recent deposits, follow, including the 

 Boulder beds, the Eiver deposits, and the Clay and Gravels of the 

 Cleaver Hills. 



A chapter, embodying a summary of the more important observa- 

 tions, as well as a few points not previously noticed, completes the 

 monograph, to which is appended a valuable list of the fossils of the 



