was no further action of light. For if some valuable ground had been gathering momentum that the fateful moments. Sir J. B. S. Ialdane, “Sex Ratio and Unisexua! Sterility in Hybrid Animals,” Jour. Genetics xii (1922); F. X. Lesbre, Précis d'analomie comparée (1922); Sir F. D. Morrow. Formerly Senior Assistant Medical Officer, No. 869, vol. 33, p. 417, 1888), giving 4-244 by an electric generator to storage-battery charg- 977 ing on relevant ethnographic data. ° The Value of products No. of Pupils Enrolled l i ~na f SSE ieee A =ar 2 S Loshascys R y Tibgrias 2 ar