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have always accepted as a natural law, is now seemingly being proved more and more satisfactorily by the notes which you and Mr. Webber present. The continental and topographical position of the region neccessitates unfavorable moisture conditions (unfavorable relative humidity, unfavorable precipiration). Allow destruction by fire to make the first inroad and repitition of this factory of destruction and you make these unfavorable climatic conditions more potent. Add the trampling herds of buffalo preventing filteration of falling water and detroying any chance seedlings, repreat the burning and you have here a combination of destructive forces which most easily explains the first destrution and the subsequent difficulty of natural reforestation. At present the difficulty I conceive mainly to lie in the enormous evaporation due to the unchecked sweep of winds.

With best regards,
Yours very truly,
[signature]
Chief of Forestry Divisions.

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have alwyas acceped as a natural law, is now seemingly being proved
more and more satisfactorily by the notes which you and Mr. Webber
present. The continental and topographical position of the region
neccessitates unfavorable moisture conditions (unfavorable relative
humidity, unfavorable precipiration). Allow destuction by fire to
make the first inroad and repitition of this factory of destruc-
tion and you make these unfavorable climatic conditions more po-
tent. Add the trampling herds of buffalo preventing filteration of
falling water and detroying any chnace seedlings pepreat the burn-
ing and you have here a combination of destructive forces which
most easily explains the first destrution and the subsequent def-
ficulty of natural reforestation. At present the difficulty I con-
ceive maily to lie in the enormous evaporation due to the uncheck-
ed sweep of winds.

With best regards,
Yours very truly,
signature
Chief of Forestry Divisions.