338 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [April 28, 



places 6 inches in depth ; but as my specimens are lost, I cannot de- 

 scribe it*. From Munga-Peer I proceeded in a north-westerly direc- 

 tion to the Hubb River ; after the first mile the land gradually slopes 

 into the valley of the river, in the bed of which I found numerous 

 rolled fragments of the black slate upon which the nummulitic lime- 

 stone is known to rest. This being the boundary of our possessions 

 in Sinde, and finding that the formation differed in no respect from 

 that already visited near Deyra in Northern Sinde, I returned to 

 Kurrachee. 



From hence, owing to the difiiculty of procuring both water and 

 supplies, I was necessitated to proceed in a north-easterly direction 

 towards Hyderabad, instead of moving along the foot of the highest 

 range of the Hala as I wished. This direction had its advantages, 

 however, as it led me across all the water-courses descending from 

 the Hala Range to the Indus. 



Leaving the above-mentioned salt-springs on my left, and clearing 

 the rock formations of Kurrachee, I came upon an extensive plain 

 composed of a tenacious yellow clay, similar to that seen at Munga- 

 Peer, and like it abounding with Pupse and Melanise. The clay is, 

 in many places, concealed beneath hills of loose drifted sand : 2^ 

 miles beyond Jemadar-ka-lande and about 1 5^ miles from Kurrachee, 

 I came upon low sandstone hills with still lower hillocks of various- 

 coloured clay on their northern aspect. I found here scattered on 

 the surface large quantities of the fistular fossil which I have noted 

 under the name of Tubularia, pieces of silicified wood, a tuberculate 

 Pleurotoma, and a small fossil bone. No water being procurable here, 

 I pushed on to Guggul, 25 miles in an easterly direction from Kurra- 

 chee, and 13 miles from Jemadar-ka-lande. At about the seventh 

 mile from Jemadar-ka-lande, I came upon a calcareously-cemented 

 sandstone with numerous Tubularise and Ostreee. Thence to Guggul 

 there is a plain of tenacious yellow clay, similar to that between Kur- 

 rachee and Jemadar-ka-lande, but with gravel beds occasionally coming 

 to the surface. The sections exposed by the Guggul show that the 

 clay at that place rests on a fine-stoned conglomerate. In the clay 

 immediately above the conglomerate, I found Melanise and Pupse 

 abundant. 



Hence to Nao-nehal, on the right bank of the Maulmaree river f 

 (now dry), 11 miles. The country from Guggul to within a quarter 

 of a mile of the Maulmaree rises gradually, and at that place ter- 

 minates in a sharp escarpment with a general N. and S. direction. 



* A\shallow pond receives the water of one of the hot springs, and in it upwards 

 of 300 crocodiles are domesticated. They have been there froro a very remote 

 period, and it seems difficult to say vv^hen they were first placed there. They breed, 

 and the young ones are even more numerous than the old. Many of them are 

 quite tame, allowing themselves to be touched and patted with the hand. The 

 species is well known in India under the name of "Mugger." {Obs. by Dr. 

 Falconer.-^^^Th.e Mugger crocodile of India is perfectly distinct from the Nile 

 species. There are even three Indian species of true crocodile.") 



f All the river beds are dry at this season from Kurrachee to Kotree near Hy- 

 derabad, but water is found by digging to a greater or less depth in the river beds. 



