Excerpts from the report Preface: This is the report of 20 test fumigations conducted in 1961, 1962, and 1963, in a series of tests to determine the behavior and distribution of the various components of mixtures now in common use for fumigating grain in storage. Although these results were not published at that time, they are still valid, and these formulations are widely used by grain handlers. This report evaluates the distribution of an 80:20 mixture of carbon tetrachloride with carbon disulfide and a 75:25 mixture of ethylene dichloride with carbon tetrachloride.