INTRODUCTORY NOTICE. 



Ttose who have followed the progress of Indian Geology know 

 well the great interest attaching to the rocks and fossils of Kutch, and 

 the many doubts which up to a short time since hung over several of 

 the sections there exposed. In previous volumes of the Geological 

 Survey Memoirs these doubts have been fully set forth, and the very 

 high importance which the true interpretation of these sections has, 

 as bearing on the explanation of difficulties in other parts of India, 

 indicated. For these reasons, it was determined to take advantage of 

 the earliest possible opportunity in obtaining a general revision of the 

 geology of the entire province. No maps existed of any accuracy or 

 detail sufficient to enable the observations to be carefully recorded, and 

 Mr. Wynne, who was placed in charge of the geological examination, 

 and whose powers as a draughtsman fitted him especially for the task, 

 was asked to combine into one general sketch map all such data as were 

 available ; and to add such additional features as he could during his 

 geological investigation. The general sketch map of the province which 

 accompanies this report has been the result, and reflects much credit on 

 the ability and zeal with which his labours were carried out. It will be 

 found to give a good general idea of the physical features of the 

 country and of the general relations of the rock groups also. 



But I would desire to guard against its being supposed to be a 

 detailed geological map, so far as the sub-divisions of the various groups 

 are concerned. To have attempted to construct, under the circumstances, 

 a map of sufficient accuracy and detail to admit of these minor groups 

 being shown would not only have been next to impossible from the 

 absence of sufficient data and triangulation-points for reference, but it 

 would have involved an amount of time which could not have been 



