2/8 Dr. Voysey's Private Journal [No. 4. 



we found to be at times very red and close grained. The trap vein 

 was frequently in our path, but very much decomposed and by an inex- 

 perienced eye would not have been distinguished from the granite. At 

 Mulkapoor it assumed its usual character. 



This place is situated at the northern extremity of a valley about 

 five miles in length by 1^ in breadth, the hills rise on each side to 

 the height cf nearly 600 feet, they are of granite, which for the most 

 part is of a grey colour, containing large crystals of bluish grey felspar. 

 The large trap vein crosses this valley which is nearly north and 

 south, and disappears on the eastern side amongst the rocks. It is here 

 of large dimensions and appears to contain large pieces of epidote, as 

 I found large pieces of that mineral at its foot. 



10th June, 1819. — I. was one hour going to the top of the hill 

 where a flag was fixed. I found the granite much whiter than that 

 below, which contains hornblende and compact felspar. 



The view was very much bounded by the mist, I observed a few 

 loggan stones and the same irregular appearance of the rocks as in 

 the neighbourhood of Hyderabad. The barometer stood at 10 o'clock 

 at 29° 4', thermometer 84°; below the hill at 70° 8', thermometer 

 80°. In the evening I visited the trap vein, I found a considerable 

 quantity of epidote, also a few pieces of amethyst quartz, the vein rises 

 due E. and W. I was afraid to trace it on account of the tigers. 



17 th June, 1819. — I saw several veins of the trap running in a 

 different direction from that usual to them, they appeared however to 

 be continuations of that large one which I observed at Mulkapoor. 



18th June, 1819. — On the road I observed several trap veins and 

 deposits on the mountains, but was not able to inspect them more 

 closely on account of the jungle. At this place two veins were observed, 

 the one due E. and W. coming from a considerable distance, and a 

 small one, on which was a pagoda, nearly at right angles to it, of small 

 extent, 



19th June, 1819. — I reached Secunderabad this morning, a remark- 

 able vein at the Mussey, probably a continuation of that of Golconda. 



Wednesday, 13d June, 1819. — The hill of Bowenghir consists of a 

 mass of granite of about 4 miles in circumference and 800 feet* in 



* By trigonometrical measurement 646 in height. 



