The Philippine Journal of Science
£TOS THE PHILIPPINE JOURNAL OF SCIENCE ALVIN J. COX, M. A., Ph. D. GENERAL EDITOR Section A CHEMICAL AND GEOLOGICAL SCIENCES AND THE INDUSTRIES EDITED WITH THE COOPERATION OF H. C. BRILL, Ph. D. ; J. R. WRIGHT, Ph. D. ; G. W. HEISE, M. S. J. C. WITT, Ph. D. ; T. DAR JUAN, A. B. ; A. H. WELLS, A. B. r. c. McGregor, a. b. h. e. kupfer, a. b. ; Volume XII 1917 With 11 Plates and 12 Text Figures MANILA BUREAU OF PRINTING 1917 CONTENTS No. 1, January, 1917 Page. Brill, Harvey C. The fermentation of Philippine cacao 1 Heise, George W. The interaction of chloride of lime with the normal constituents of natural waters and sewage 17 Five text figures. Brill, HaRvey C. A chemical investigation of the seeds of Pangium edule and of Hydnocarpus alcalae 37 Review 47 No. 2, March, 1917 Cox, ALVIN J. The study of copra and other coconut products 4!) Brill, Harvey C; Parker, Harrison 0.; and Yates, Harry S. Copra and coconut oil 55 Parker, .Harrison 0., and Brill, Harvey C. Methods for the production of pure coconut oil 87 Brill, Harvey C, and Parker, Harrison 0. The rancidity of Philippine coconut oil 95 No. 3, May, 1917 Wells, A. H. Destructive distillation of Philippine woods Ill Brill, Harvey C, and Alincastre, Cecilio. The possible maximum vitamine content of some Philippine vegetables 127 Witt, J. C, and Reyes, F. D. The effect of calcium sulphate on cement 133 Wright, J. R., and Heise, George W. The radioactivity of Philip- pine waters 145 One plate and 2 text figures.
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