33. A NEW RESULT CONCERNING A MERSENNE NUMBER. -- On 2 De- cember 1944 I finished the proof that the Mersenne number M167 is com- posite; see MTAC, p. 333. Hence there now remain only four of these numbers Mp (p = 193, 199, 227, 229) whose character is unknown. The method of testing primality was the same as that described in Nat. Acad. Sci., Proc., v. 30, Oct. 1944, p. 314-316. H. S. UHLER 12 Hawthorne Ave., Hamden 14, Conn.