Determination of sulfonamides in tablets**Appreciation is expressed to Lederle Laboratories, Inc., for pure sulfathiazole and sulfaguanidine; to Sharp & Dohme, Inc., for pure succinylsulfathiazole; to the above firms, Parke, Davis & Company, and Eli Lilly and Company for information on tablet excipients. The encouragement of Dr. R. R. Read, Chief Chemist of Lambert Pharmacal Company, is gratefully acknowledged.