Show forests aa oxygen Fact orle it has been claimed that forests exert an important influence in behalf of human health soil conditions in the woods are unfavorable to disease producing germs those of cholera and yellow fever every forest Is an oxygen factory and it Is declared that its production of life giving gaa Is of sanitary importance ozone la also a forest product the forest may be regarded as a blanket with which nature covers the earth for its protection ahls blanket says professor mary W harington determines baay of the features of climate |