CONTENTS 
she 
“BACON, RAYMOND F. The Physiologically 
Active Constituents of Certain Philippine 
Medicinal Plants ___--- A coagaewe oo nee Sane 
BACON, RAYMOND FOSS, and MARSHALL, : 
HARRY T. The Toxic Action of Saponins-.. 1037 
SMITH, WARREN D. Contributions to the _ 
Physiography of the Philippine Islands: I. Cebu . 
Island eT ete een 1043 
MARSHALL, HARRY T., and EDWARDS, _ soe 
RALPH T. Agenesis of the Vermiform Ap- 
meee we wees wee ete Sere ee weer eee 
BANKS, CHARLES Ss. Problems in Economic | 
Entomology in the Philippines Ses oS ao 1067 
RICHMOND, GEORGE F. Philippine Fibers _ 
and Fibrous Substances: Their Suitability for 
Paper Making (Part 11) ..-.------------------- 1075 
; = ‘Title, Contents, and Index to Volume 34 
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