eee Thomas de Haley, Ph.D. is the one employed in the detoxication of phenols. The problem en- tails much work because injected sulfete (HapS0,) is readily cleared by the kidney and ingested any extent. sulfate cannot pass the intestinal membranes to In fact the latter property is one of the reasons for the use of sulfetes as cathartics. adic sulfur (535) eculé be administered as methionine or one of the other sulfur-containing amino aciés. A phenol could then be piven and the excretion of total and ethereal sulfate in the body could be definitely proven.