CHAP. 1.] PUEVIOUS OBSERVEES. 11 



This article was followed by the extensive correspondence referred to 

 in the appendix, in which the principal portions 



Correspondence. 



connected with the recent geological changes in 

 Kutch are — a memorandum by the Superintendent of the Geological 

 Survey, pointing out the importance of and distinction between the 

 various actions mentioned in the article and making suggestions as 

 to the methods of ascertaining whether the land on this part of the 

 Indian Coast was rising or sinking — together with the memorandum 

 on the subject communicated to the Bombay Geographical Society by 

 Mr. Sowerby (with a supplement) , arguing that the land has not been 

 depressed, and attributing the changes along the coast to the oscillation 

 of the tidal wave ! 



The letters of Captains LaTouche, LeGeyt Hebbert and Watson 

 give the results of their enquiries made in Kattiwar at the desire of 

 Government ; Captain Hebbert having seen no reason to believe that 

 the Runn was undergoing gradual depression, while Captain Watson 

 arrives at an opposite conclusion. 



From the correspondence it also appears that Captain Haig was 

 fully instructed by the Superintendent of the Great Trigonometrical 

 Survey as to instituting a series of observations to determine the facts, 

 but the results are still unknown. 



In Mr. G. Poulett Scrope's valuable work on Volcanos at page 404, 

 the erroneous statement of the existence in Kutch of an ' extinct volcanic 

 mountain with an irregular crater'' is repeated. Dhenodhur hill is the 

 one usually miscalled an extinct recent volcano, but this does not occur, as 

 he states, in the Daura or Dora {i. e. white) range. Other indications of 

 eruptions are said to occur in the vicinity, but are not fui-ther specified ; 

 and a reference is made to LyelFs " Principles.'" The author was probably 

 misled with regard to these statements by Captain Grant's allusions to 

 ' blown out ground^ and other appearances attributed in error to direct 

 recent volcanic action. 



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