I have attempted to synthesize cellulose xanthate in anhydrous liquid ammonia, and to analyze the product for combined sodium and sulphur, with the hope of determining the exact chemical composition of each C₆ unit of cellulose xanthate. It is the purpose of this work to study the xanthation of cellulose with the idea in mind of adding more experimental evidence to the data now available, as to the composition of cellulose xanthate. It is hoped that sufficient evidence will be available at the completion of this problem, to finally enable us to form definite conclusions concerning the actual chemical structure of cellulose xanthate. / M.S.