CONTENTS. 



No. 1, January, 1910. 



I. Richmond, George F. Tayabas Petroleum 1 



II. Gibbs, H. D. The Compounds which Cause the Red Coloration 

 of Aniline: I. The Effect of Oxygen and Ozone and the 

 Influence of Light in the Presence of Oxygen 9 



III. Hulbubt, Clinton H., and Bacon, R. F. A Liquid Concave 



Mirror 19 



IV. Holmes, W. C. Distilled Liquors: Whisky (Rye, Bourbon and 



Scotch), Brandy (Cognac) and Gin 23 



V. Vivencio del Rosabio, Maeiano. On the Determination of 



Aldehydes in Distilled Liquors 29 



VI. Gibbs, H. D., and Agcaoili, F. Lard from Wild and Domestic 

 Philippine Hogs and the Changes in the Constants Produced 



by Feeding Copra Cake 33 



VII. Editorial 45 



VIII. Reviews 55 



No. 2, March, 1910. 



IX. Adams, George I. Geological Reconnaissance of Southwestern 



Luzon 57 



X. Reibling, W. C. Concrete Construction in Manila and the 



Philippine Islands 117 



XL Adams, George I., and Pratt, Wallace E. Philippine Pot- 

 tery — . 143 



XII. Iddings, Joseph P. The Petrography of some Igneous Rocks 



of the Philippines 155 



No. 3, May, 1910. 



XIII. Freer, Paul C. The Study of Manila Copal , 171 



XIV. Foxworthy, F. W. The Almaciga Tree: Agathis Alba (Lam.) .. 173 

 XV. Richmond, George F. Manila Copal 177 



XVI, Brooks, Benjamin T. The Destructive Distillation of Manila 



Copal 203 



XVII. Brooks, Benjamin T. The Oxidation of Manila Copal by the 



Air 219 



XVIII. Brooks, Benjamin T. The Oleoresins of Pinus Insularis Endl .... 229 



HI 



A 



5* 

 J 



