Much has been accomplished in the last few years
toward the conservation of natural resources, and in
this work the engineer has taken a leading part. The
prevention of unnecessary waste, the utilization of
hitherto useless by-products, and the economic production of the world's necessities are important features of this...
Published 1911. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published June 1915. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published September 1911. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog