436 Journal of the Asiatic Society of Bengal. [N.S., XIV, 
hornblende, plagioclase, quartz, clear sphene, epidote, apatite, 
which constitute one of the members of the Attikuppa belt of 
Dharwar rocks in southern Mysore, occupying the country be- 
tween -Attikuppa and the Hemavati river, a tributary of the 
Cauvery. In this Dharwar belt, the most abundant rocks, 
together with the Pseudo-Charnockites, are Gray-stones (“ pot- 
stones ’’ and related rocks), associated with hornblende-granu- 
lite-schists resembling the Kolar schists. : 
above observations are of the greatest interest and 
importance, for, associated with rocks resembling the Kolar 
schists which already seem to represent a first step towards the 
northern limit of the Nilgiri Hills (themselves a great mass of 
Charnockites), in the region south and south-west of Gundlupet 
(11°47’ ; 76°44’). They consist of hornblende, felspar, ilmenite 
and apatite, similar in their characters to the same minerals % 
ever, contain any rhombic pyroxene. ee 
: Holland has noticed that the secondary augite 0 
Kolar schists is generally accompanied with the epaae = ich 
has been repeatedly insisted upon by Smeeth. The m 
phosed rock is Se ita Pia toa composition per rd 
original epidiorites. This observation will be again refe 
in the sequel of the present note. Jude 
The above-quoted discoveries and investigations gos of 
about all that is known at present in the petrological a oc- 
our enquiry as pointing out a possible origin of the © that 
kites. They very clearly point at least to the possibility or 
the Charnockites may represent a more intensely eager 
phosed facies of the epidiorites which constitute so large 4 
portion of the Dharwars. 
s. 
STRATIGRAPHICAL RELATIONSHIPS OF THE CHARNOCKITE 
re 
If we now turn to the stratigraphical evidence, that oat 
ded by the detailed work of the Mysore Geological De of the 
is unfortunately of very limited avail ; the great expans?, 
