Published June 1991. 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 May 1990. 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 October 1958. Reviewed October 2003. Please check for active titles in the OSU Extension Service Catalog: http://extension.oregonstate.edu/catalog
Published July 1961. 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 August 1944. 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
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...