GEOLOGICAL SURVEY OF INDIA. 
Memoirs, Vol. XXXVU, PI. lo 
Fig. 1. — X 23. 
Fine-grained quartzite being replaced by 
manganese-ore. 
Sivarajpur, Panch Mahals district, Bombay. 
Fig. 2.— X 23. 
Piedmontite-gneiss. 
Pali, Nagpur district, CP. 
L. L. Fi-rmor. Photomicrograph. 
Fig. 3. — X 23. 
Piedmontite and felspar, latter altering to 
calcite. 
Ghogara, Nagpur district, C. P. 
Beiitrose^ Colto.^ Derby. 
Fig. 4.— X 23. 
Piedmontite in crystalline limestone, 
(ihogara. 
