1844.] Extracts from, Dr. Voysey's Journals. 861 



and stony, and the turns very numerous to ascend the ravines ; the rock 

 gneiss passing into mica schist with numerous veins and beds of quartz 

 rock. The latter part of the Jam Ghattee Pass is of hornblende schist, 

 without any admixture of either felspar or quartz. Nothing can be 

 more erroneous than Arrowsmith's map, as it stands at present. The 

 dip of the gneiss is Southward, and the plane of stratification E. 

 andW. 



Chunoakf 2d April, — At Oargah, the gneiss is laid bare to a con- 

 siderable extent. In the bed of a nullah, I observed several quartz 

 veins. — To Direcola is through a very deep forest without any cul- 

 tivation, except in a small spot near Direcola. The rock is gneiss 

 hornblende schist, and quartz rock repeatedly alternating. 



Cheekurdurpoor, 2d April. — The rock around this place is gneiss, 

 with a considerable quantity of quartz intermixed. 



Sureekela, 6th April. — On the road from Kishenpoor I saw 

 gneiss in the beds of all the nullahs, and a kind of clay stone lying 

 in a bed in the gneiss near the Soonjee ; this change is analogous 

 to that which takes place in the granite at Hyderabad, from green- 

 stone into the potstone. Numerous large beds and elongated veins 

 of white quartz ; it is not improbable that metalliferous ores ex- 

 ist in this rock. It has been found the richest in metals of all the In- 

 dian rocks. At Callastry it contains lead ore mixed with silver ; at Nel- 

 lore, copper ; at Nagpoor, manganese and lead ore and copper; micace- 

 ous iron ore is a very common product of this rock. The iron clay which 

 I observed at Mahoda, and in many places along the great road, has 

 not been seen since I left Sumbulpoor. I did not stay long at that 

 place to ascertain its habitat ; but I was informed that it was found on the 

 summits of some of the hills in the vicinage. From the facility with 

 which it is wrought and its durability, it is always preferred to other 

 materials ; great part of the building in forts at Sumbulpoor is of 

 this stone. — At Suraukbela, granite exactly resembling that found in 

 some parts of the province of Hyderabad. 



Idhull, 1th April Granite, of the lamellar kind sometimes pass- 

 ing into gneiss is the universal rock intermixed with beds of quartz 

 rock, and the greenstone veins and beds. In one part I observed 

 a large grained decomposing granite, composed of large amorphous 



crystallizations of white mica, felspar and quartz. 



5 z 



