168 Journal of the Asiatic Society of Bengal. [June, 1905. 
21. Note ona ae pare Product of a Peculiar Variety of 
Bundelkhand Gneiss.—By C. A. Strperrad, B.A., B.Sc., LCS. 
ing the construction cr the Ken Canal, my attotitiall was 
round which the village of Deora-Bhapatpir in the Ajaigarh 
State is built. The hill is one of the low gneissic hills charac- 
teristic of this part of Bundelkhand (vide Medlicott and Bland- 
ford’s ‘Geology of India,’ Vo I, page 11, et. seq.), but 
appears to be some ual variety of gneiss and on 
more than usually liable to pad on tp ion. At several places on 
pags to 50 feet pte for the canal. Both ‘eta are within three 
or four miles of the head works of the canal, and some ten miles 
west by south of Ajaigarh — they are about eight miles north- 
west from the Vindhyan sec 
accordingly peas some samples and sent them to my 
brother, Dr. O. J. Silberrad, Ph.D., Research Chemist to the War 
Office Explosives Commi ho examined them, and through the 
indness of a friend had them tested at a pottery as Ria the 
suitability of the cla r the manufactu eart 
or 
other bigs To them I am indebted for all the followidg in- 
formation 
The sok 3 is subjoined. Beside the figures showing the re- 
sults of the chemical analysis, I have oo those of Pinite as 
given in Dana’s Mineralogy, which appears to be a somewhat 
similar material. ae occurrence of Titanic Acid i in the clay is, 
however, of intere 
“ Report on Clay from Deora-Bhapatpir. 
Analysis of clay is as follows :— 
Clay from 
Deora-Bhapatpur. Pinite- 
Silica a Os 44°40°/, 49°11 
Alumina Reihgs 18 3X 30°47 29°00 
Lime 6 
Magnesia va MgO 2°89 107 
Ferric Oxide is oe 6°17 913 
Potash on K,O 8:05 684 
Soda aa oe 42 
Titanic Acid TiO, 0-54 wee 
Combined water and ...... 
cisco matter ... 6:14 i 401 
oe 1:10 
Phosphotic Acad... P.O, ‘091 
