928 SEVENTH REPORT—1837. 
application ; sometimes one mineral only is imbedded, occa- 
sionally two, and often the whole. 
In Hurreechundurghur quartz amygdaloid prevails ; at Akla- 
poor, on the Mool river, it is characterized by mesotype, that 
mineral being imbedded in large masses, and the radii (six or 
seven inches) are the longest I have seen; at Nandoor it 
is porphyritic, with several crystalline specks of lime ; near to 
Ahmednuggur is seen a cellular, indeed spongiform kind, 
which is hard, and the cells are empty. A small cellular and 
pisiform variety is found in the wonderful cave temples 
of Ellora; and some of the sculptured figures appear as 
if marked by the small-pox. This observation is partially 
applicable to the Boodh and Hindoo cave temples of Ele- 
phanta, Salsette, Karleh, Joonur, the Naneh Ghat, and the 
Adjuntah Ghat, all of which are excavated in basaltic or 
amygdaloidal strata. The stilbite, or heulandite amygdaloid, is 
of very common occurrence; but the most prevalent kind 
is that in which all the minerals noticed above are asso- 
ciated. The stone usually selected for building is of various 
shades of grey or bluish grey; has hornblende disseminated 
in very small crystals; works much easier than some of the 
compacter basalts, but takes a good polish. ‘The entire 
temples of Korrul and Boleshwur, with their innumerable 
alto-relievo figures and laboured ornaments, are built of this 
variety of trap, which is, in fact, a greenstone, although 
less crystalline than the European rock. There is a variety, 
selected carelessly, also used in building, which has the struc- 
ture, and nearly the external characters of the last, but which 
in weathering exfoliates, and the buildings fall to ruin: such 
is the case with the great temple in Hurreechundurghur. 
I must not omit mention of two remarkable rocks which, as 
far as my reading extends, have not been noticed by authors 
on European geology. The first is an amygdaloid, in which 
compact stilbite is imbedded in a vermicular form; one of its 
localities is the insulated hill on which stands the temple 
of Purwattee, in the city of Poona; and it is met with in 
many other places. Captain Dangerfield* observed the same 
peculiar stratum near Sagar. He says, “There occurs an 
amygdaloidal or porphyritic rock, consisting of a compact 
basis of wacké, in which are imbedded in great abundance 
small globular or uniform masses, but more usually long, 
curved, cylindrical, or vermiform crystals of zeolite.” 
The other rock occurs as a thick stratum of amygdaloid, 
* Malcolm’s Central India, p. 328, 
