R BLSA Briggs, Thomas Henry, b1877- 164 The enemy within. New York : Published for the Advancement of Education, Inc. by the Science Press, 1940.
(2);.42, [2]lpe. & 26: ems.
Reprinted from School and Society, ¥.51, no.1309;3 Jan. 27, 1940...
Ls es
RG87-535515 & MRG87-535515 20981