496 Miscellaneous Intelligence. 
Territories, There is an evident absurdity in an expression 
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favor private enterprises. The General Government, unlike many 
in foreign lands, has no ownership in the mines of California or of 
n 
any other of the States, and hence o need to establish a | 
Mining Bureau for the country at large , . 
The States, for the most part, have carried forward geological 
8 e great need, previous to undertaking new surveys, 
in order that they may be correct complete, is, for each, an 
accurate topographical surve efore New England, or any 
his or of the other sections of the Union, has again its 
corps of geological surveyors, it should have in t for a 
survey might be a possibility. It was manifest that without 
such a preparation the work would be half a waste of expenditure, 
and have to be done over again. 
Topographical surveys are needed in every State as well as 
oe 
Territory ; and for this purpose there is manifestly required the 
! y mes D. Dana. 
_ 2. Chemical Denudation in relation to Geological Time ; by 
T. Mettarp Reape. 62 pp. 8vo. London, 1879. (David Bogue.) 
—Mr. T. Mellard Reade gives, in his memoir, the results of bis 
comparisons of the amount of denudation in various regions over 
