1B50.] Report on the Statistics of Banda. 93 



fragments (evidently) of compact clay and white quartz, which seem to 

 become blended with the flinty and crystalline cover which envelopes 

 them. A greenish clay, in small and curved heaps, lines the largest 

 heterogeneous parts of this breccia, and its flinty and crystalline matrix 

 is full of cavities, as in the sandstone, filled, or oftener lined, with an 

 ochery substance. This conglomerate resembles much certain varieties 

 of the diamond-bearing conglomerate of Punna. It forms a sinuous 

 unequal bed, of which the thickness does not vary less than f to 1^ foot 

 in the slight extent which I could examine. It is immediately covered 

 with small layers of sandstone which are separated by clay. Underneath, 

 I have only seen the sandstone described in the last place with fragments 

 of baked clay and shining grains of glassy quartz ; but their actual 

 observation was impossible, and I could only make conjectures on what 

 I should have found, descending to meet the syenitic rocks. In a 

 deep excavation open towards the mean height of the escarpement, and 

 which descends within its walls even below its base, I observed the 

 beds the lower part of which I will now describe. A circumstance worthy 

 of remark : this excavation leads to a subterranean well, of which the 

 depth, they say, is unknown (Patai Ganga). The bed of the conglome- 

 rate there reaches the level of the water ; the sandstone with grains of 

 shining glassy quartz is submerged. These grains of shining glassy 

 quartz are exactly the same as those found at Adjighar, in the 

 porphyry and sandstone which border on it. Here I have not seen 

 porphyry well defined ; but is it not represented by the conglome- 

 rate ? It is in the porphyry at Adjighar as here in the conglomerate 

 that a similar cavern full of water opens ; perhaps, elsewhere the por- 

 phyry exists under the conglomerate ; a rock half decomposed, of a 

 doubtful structure, which is found at some distance from thence, 

 underneath the syenite, completes the resemblance of the two localities. 

 It is formed of a green and red matter (perhaps of clay or of 

 Actinyte and feldspar decomposed), in which are embedded some 

 crystals of red feldspar and fragments of white quartz. The red 

 matter forms here and there little leaf-like masses. Is it a crys- 

 talized rock in a state of decomposition ? Is it a sandy rock 1 I cannot 

 say ; but it is the same rock which I have seen at Adjighar, enter into 

 the syenites and the porphyres. It constitutes here in like manner a 

 thick mass, moulded on in relief on the syenite, which divides itself 



