46 KING: KADAPAH AND KARNÜL FORMATIONS, [PART I1. 
have- attracted attention from their resemblance to fossils or impressions 
of such. On the surfaces of many of the coarser grey flags of the 
Koilkoontlas there may often be seen irregularly discoid extremely 
shallow depressions, from half an inch to two inches in diameter, which 
are of a lighter shade and smoother than the rest of the surface of the 
rock. These are often well separated and tolerably round in their outline, 
but they are generally irregularly indefinite as to their edges, and 
running into each other. On the corresponding under surface of the 
next layer, the reverses of these shallow depressions may be seen. In 
section these bodies show an exceedingly thin lenticular shape, and they 
are made up of thin lamine of the same light-shaded clayey matter as | 
the external surfaces. "The flags in which they occur are sub-crystalline, 
argillaceous limestones; and it is evident that the bodies in question are 
merely very thin accumulations of argillaceous matter in the substance 
of the rocks; such, though of different form, are not even solely confined 
to these Koilkoontla limestones; but show likewise, though not so 
often in the flags of the lower or Jummulmudgoo group. 
Besides the larger markings above noted, there are generally on 
the very same surfaces of the flags, in both groups, numerous minute 
papille which at first sight are not unlike the little crustacean Cypris و‎ 
but these again show no organic structure, and are probably concretionary. 
It is perhaps hardly worth while mentioning these. cases of concre- 
tionary structure in the limestone, except for the guidance of future 
observers, in case they are equally struck with their apparent fossil 
resemblance. 
In the northern part of the field, or along so much of that part 
Se oa arte of the valley of the Kistnah and Toongabudra, 
ter of beds. this lower member of the Khoondairs is found 
to vary from its usually prevalent character of being a ۱۳۵1۳0 
limestone down to the bottom of the group. At Mooraconda, on the 
right bank of the Kistnah, some three miles north of the Toongabudra 
( 46 ) 
