22 The Philippine Journal of Science 



Page. 



Griffin, L. E. Two new species of snakes found in the Philippine 



Islands 55 



. Seale, a. The fishery resources of the Philippine Islands, II : 



ffponges and sponge fisheries 57 



Nine plates and 4 text figures. 



McGregor, R. C. A collection of birds from northern Mindanao.... 67 

 McGregor, R. C. Philippine ornithological literature, II 79 



Editorial: The marble and schist formations of Romblon Island, 



by G. I. Adams 87 



Review '. 91 



No. 2, March, 1909 



[Issued June 10, 1909.] 



Bacon, R. F. Philippine terpenes and essential oils, III 93 



GiBBS, H. D. The oxidation of phenol: The effect of some forms of 



light and of active oxygen upon phenol and anisole 133 



Bacon, R. F. On a rapid clinical method for determining the ammo- 

 nia coefficient of urines 153 



One text figure. 



Editorials : 



The tensile strength of machine- and hand-stripped abaca fiber, 



by R. F. Bacon 163. 



The excreta of the python, by R. F. Bacon 165 



A rubber vine, by R. F. Bacon 166 



Note on the action of sodium alcoholates on alcohols, by R. F. 



Bacon 166 



Review 169 



No. 3, May, 1909 



[Issued July 24, 1909.] 



Cox, A. J. Calorimetry, and the determination of the calorific value 

 of Philippine and other coals from the results of proximate anal- 

 ysis 171 



Three text figures (charts). 



Bacon, R. F., and Gana, V. Q. The economic possibilities of the 



mangrove swamps of the Philippines 205 



Cox, A. J. Philippine raw cement materials 211 



Editorials : 



Philippine turpentine, by G. F. Richmond 231 



Industrial alcohol and its possibility as a source of power in the 



Philippines, by A. J. Cox 232 



No. 4, July, 1909 

 [Issued September 24, 1909.] 



Villaverde, J. The Ifugaos of Quiangan and vicinity. (Translated, 

 edited, and illustrated by Dean C. Worcester. With notes and 



an addendum by L. E. Case.) ■. 237 



Fifteen plates. 



