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Analyses of Books . 
609 
portent or miracle. In like manner the concepts of number, 
time, and space are not wanting among brutes, as any candid 
inquirer may easily find to his satisfaction. 
We are compelled further to differ from the author when he 
says “ the higher instincts of our nature are independent of the 
observation of natural phenomena, or otherwise they would be 
absent in one born blind.” Surely no one contends that the 
instincts of a species originate de novo in every individual of 
such species ! Are they not the product of successive genera- 
tions, handed down, like structural peculiarities, from parent to 
offspring ? 
A Manual of the Geology of India. Part III. — Economical 
Geology. By V. Ball, M.A., F.G.S. Calcutta : Office of 
the Geological Survey of India. London : Triibner and Co. 
This volume will clear away two opposite errors. It will, on the 
one hand, dispel some of the sensational visions of untold wealth 
to be gained from Indian mines, but it will also overturn the con- 
temptuous estimates of the mineral deposits of the country in 
which some writers have indulged. It is true that English lead, 
copper, and iron are underselling the indigenous products ; but, 
on the other hand, both Government and private companies have 
worked coal- and salt-mines and stone-quarries with very great 
profit. In the course of the next few years “ the capabilities of 
India not only as a gold-producing country, but also in reference 
to other metals,” will be fairly tested. The task of the officials 
of the Geological Survey has not been easy. The area to be 
worked over is immense in comparison with the time allowed 
and the number of investigators ; and, in addition, the natives 
are not merely disinclined to furnish information as to the mine- 
ral wealth of the several districts, bat even take steps to prevent 
the deposits from being discovered. The Survey, however, under 
all difficulties, has proved the possibility of certain minerals oc- 
curring in given tradts, and has conclusively shown the futility of 
searching for them elsewhere. 
The first chapter treats of the diamond, graphite, and amber. 
Golconda (Kala-kandar), it appears, never produced diamonds, 
but was merely the mart where they were bought and sold. The 
three chief localities in which diamonds have been found, and 
may be sought for with some prospedt of success, are on and 
near the Godavari, between this river and the Mahanadi, and in 
Bundelkhand. They occur in the lowest beds ol the Vindhyan 
formation. It appears probable that the original matrix of the 
