CONTENTS 



PaiST" 



RUTH, EDWARD S. On the development of twins and other 



polyembryos with special reference to four sets of duck twins.. 109 



GIBSON, R. B., and CONCEPCION, ISABELO. The influence 

 of fresh and autoclaved cows' milk on the development of 

 neuritis in animals 1 19 



C0NCEPCI6N, ISABELO, and BULATAO, EMILIO. Blood- 

 pressure picture of the Filipinos _ 135 



■^ 



rrhe "Pliilippine Journal of Science" is issued as follows: 



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