282 GEOLOGICAL SURVEY OF INDIA. 



been carried out, but much of this reporting, which delays the 

 regular work of the survey, and at present appears to have com- 

 pletely stopped it, is necessary because the survey has not been 

 extended to the areas on which reports are required.* 



There is still great uncertainty as to the total annual yield or 

 out-turn of the different kinds of minerals in India. With a 

 view to the improvement of our existing knowledge, a valuable 

 index of the local distribution of important minerals, miscellaneous 

 minerals, gem stones, and quarry stones in India, has been prepared 

 by Dr. King. The primary object of the list was to help the local 

 authorities in drawing up the returns for an annual statement, 

 showing the quantities and value of mineral products in British India, 

 which should be published in the "Mining and Mineral Statistics of 

 the United Kingdom " of Great Britain and Ireland. The products 

 themselves are grouped by Dr. King under the following headings : 

 Important Minerals, including coal, iron ores, gold, petroleum, and 

 salt ; Miscellaneous Minerals, including alum, antimony ores, arsenical 

 minerals, asbestos, bismuth and cobalt ores, borax, chrome ores, 

 copper ores, corundum, gypsum, lead ores, magnesia minerals, 

 manganese ores, mica natron, nitre, ochres, phosphates, platinum, 

 plumbago, soapstone, soda, salts, sulphur, tin ores, zinc ores ; Gem 

 Stones, including amber, beryl, diamond, garnet, jade and jadeite 

 quartz, &c, rubellite, ruby, sapphire, spinel 5 and Quarry Stones, 

 including clays, granite (gneiss, &c), laterite, limestone (marbles, 

 kunkar, &c), slate, and trap. 



* I am indebted to Mr. II. 15. Medlicott and Mr. W. T. Blnuford, the two greatest 

 authorities in this country on the subject of Indian geology, for the above statement 

 respecting the geological work that still remains to be done. 



