112 NEllBUDDA DISTRICT. 



In 1847, Mr. Blackwell repeats all Mr. Jacob's mistakes, makes three 

 beds out of the two, and overlooks the second locality altogether. 



In 1855, a paper descriptive of the physical character of the Nerbudda 

 by Dr. Impey, accompanied by selections from public correspondence, 

 and other papers relating to coal, &c, of the district, was published in the 

 Selections from the records of the Bombay Government, (No. XIV) and 

 a map of the river accompanied the paper. The accuracy of the con- 

 tents of this volume on the subject of coal may be gathered from the fact, 

 that out of eleven localities marked on the map, three have been placed 

 on parts of the country occupied by Crystalline rocks, viz. schistes or gra- 

 nite, where of course no coal exists, and that in every case where mea- 

 surements of the coal beds marked have been given, the thickness has 

 been considerably exaggerated. As above remarked, Col. Ouseley's de- 

 scriptions have been little, if at all, improved upon, and have sometimes 

 been even misquoted, while no new locality has been added to his list. 

 Below will be found a new list of all localities now known, with carefully 

 made measurements of the thickness of the beds seen in each, the date of 

 discovery, and name of each explorer. The more systematic researches 

 of the Geological Survey naturally made them acquainted with some out- 

 crops not before known ; but among many such, only one gives fair 

 promise of remuneration to mining enterprize. 



The Iron of the Nerbudda valley has also been very carefully ex- 

 amined and very fully reported upon. When 

 Colonel Pressgrave in 1830 opened his suspension 

 bridge over the Beos river near Sagur, he did more to place in their true 

 licht, the mineral resources of the district, than any amount of purely 

 scientific investigation could do. 



His statistics, and those of Captain Franklin, together with the 

 detailed experiments of the latter, gave the fullest information on 

 the subject of the capabilities of Tendukhera and of some other 

 Iron-producing localities. Mr. Jacob, and lastly Mr. Blackwell, have 



