[ 130] 



exactly parallel to eacli other, from which we 

 may infer, that their elevation was not simul- 

 taneous; but that the risings and deposits were 

 alternate and successive; long periods of tran- 

 quülity sometimes intervening, during which the 

 limestone was formed. The commencement ot 

 the latter is plainly seen, where the black strata 

 have been partially denuded; it is at first mixed 

 with the subjacent black matter and hy degrees 

 becomes purer as it ascends, whereas its upper 

 surface terminates abruptly and bears what rests 

 upon it, without any intermixture. 



Limestone is one of the most common minerals 

 found in this part of the country ; it abounds in 

 every part of the lower lands, as well as on the 

 flanks of the mountains. The Gedé itself must 

 have originally burst its way, not only through 

 masses of Granite and sedementary rocks, as the 

 seams or veins, they contain of trachyte, prove j 

 but also have borne up with it large beds of 

 limestone, as in the case of the Ghiserua, which 

 is shut up in an elevated mountain defile, pre- 

 cluding the idea of its having been formed there 

 since the existence of the Gedé. The highest point, 

 at which shells have been observed in limestone, 

 is in a black and very hard description, at the 

 Western foot of the Gedé, near the Kampong 

 Kemhang Kuning, in which the forms of Pectens 

 and other bivalve shells may be seen at an ele- 

 vation of about 1,000 feet above the Sea. 



The range of the Gunung Saribu runs out N- 

 N. E. from the eastern base of the Gedé and 



