294 Proceedings of the Asiatic Society. [No. 4. 



the issue of a new edition, thinking it best that the existing and 

 unappropriated copies of the Map should be so distributed in India 

 as to facilitate the comparison of its results with those of recent 

 observation, the Map containing therefore a record only of the infor- 

 mation accumulated by Mr. Greenough. 



The necessity of adopting this course is further confirmed by the 

 very strong opinions expressed by the Director of the India Geolo- 

 gical Survey and by the Curator of the Museum of Economic Geo- 

 logy in India, of the many inaccuracies in the Geological informa- 

 tion of the Map, inaccuracies not confined to errors in determining 

 the limiting boundary between two contiguous formations, but in- 

 volving the most serious mistakes as to the true nature and position 

 of the formations themselves. These mistakes it was scarcely possi- 

 ble that Mr. Greenough as the compiler of the information, obtained 

 by others, of whose ability and accuracy he could not always be a 

 competent judge, should entirely avoid ; but it would be very 

 unwise to hamper the able Geological Surveyors of India by requir- 

 ing them to adjust their information to so imperfect a Map. The 

 opinion of the Council is therefore that the first step should be, 

 to lay down from all the information possessed in India, an ap- 

 proximatively correct topographical Map, which it is believed could 

 be effectively done by the East India Survey Department, and that 

 on this Map should be recorded all the information of a Geological 

 character in possession of the Directors, whether in India or at 

 home, the act of recording being, however, confided to the Geolo- 

 gical Department in India, as best able to estimate the fidelity and 

 value of the information not actually resulting from their own 

 enquiries. 



The Council would also suggest that copies of this improved Map 

 should, as soon as possible, be forwarded to the learned Societies, 

 especially Geological, at home, in order that the attention of scien- 

 tific men should be at the first moment directed to it, as one of 

 the best means of insuring its ultimate perfection. 



I have, &c, 

 (Signed) J. G. Poetlock, President. 



The Librarian submitted his usual monthly report for the months 

 of July and August last. 



