The people of Oregon have become increasingly aware of the constant devaluation of the public waters by unrestricted stream pollution. All of the many uses of natural water have been affected to some degree by the utilization of these same waters as carriers of domestic and industrial wastes. The streams...
Purpose of the study. In any field of research in which many investigators are engaged, points of difference are inevitable, and the present subject is no exception. Many recommendations have appeared in the literature and a survey makes it quite obvious that some of these have been made without the...
Purpose and scope of study. Inquiries from farmers, county agents, and contractors requesting information concerning the use of sawdust as an aggregate in Portland cement mortar or concrete have been received frequently enough to draw attention to the problem. This work was under· taken witk the view of obtaining data...