S&HïflSIE 



OF THE 



GEOLOGY OF JASINGA. 



-Wfflii' 



The report, that Mr. Horner had, early in 

 i836, disco vered Granite in the rivers Chi- 

 rnadur and Ghiara, on the South coast of Bantam, 

 suggested the idea, that that rock might also 

 exist among the defiles of the raountains, South 

 of Jasinga, notwithstanding that the Gunung 

 Kendang intervenes and rises to the height of 

 at least 5,ooo feet above the Sea. 



A rather doubtful and partially decomposed spe- 

 cimen, picked up in December in the Ghiberrum, 

 at the Western base of the Gunung Gedé, helped 

 to strengthen this opinion and a profusion of boul- 

 ders, observed in the month of February follow- 

 ing in the Ghimangeunteung, which flows along 

 the Southern side of the same mountain, seemed 

 to confirm the fact. 



It was however the i6th of July before the 

 weather and other circumstances admitted of any 

 regular search for the situs of the Granite. 



It had been previously observed, that the 

 blocks, from which all former specimens had 

 been s truck, decreased in size in proportion to 

 their distance from the Gedé. It was therefore 

 determined to commence a search from the 



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