INDEX. 



(New names are printed in heavy-faced type) 



Abies dammara Poiret, 173. 



Acacia farnesiana Willd., 443 ; A. rugata 

 Ham., 445. 



Acid, oxalic, solution of, as a chemical pho- 

 tometer, 281. 



Actinic and nonactinic days, 293. 



ADAMS, GEORGE I., Geological Reconnais- 

 sance of Southwestern Luzon, 57. 



ADAMS, GEORGE I., and PRATT, WAL- 

 LACE E., Philippine Pottery, 143. 



iEquipecten sp., 328. 



Agathis alba (Lam.), 171, 173; A. borneen- 

 sis Warb., 174; A. celebica (Koord.), 

 174; A. dammara (Lamb.) Rich., 173; 

 A. labillardieri Warb., 173 ; A. loranthi- 

 folia, 173 ; A. macrostachys Warb., 173 ; 

 A. motleyi (Pari.), 174; A. Philippinensis 

 Warb., 174 ; A. regia Warb., 173 ; A. 

 rhomboidalis Warb., 174 ; A. robusta 

 (Moore), 174. 



AGCAOILI, P. See Gibbs, H. D., 33. 



Agglomerates, of southwestern Luzon, 95. 



Agno river bed, 327. 



Agus river, in Mindanao, 350. 



Agusan river, valley of, 349. 



Air, ionized by tropical sunlight, 267, 269 ; 

 oxidation of Manila copal by the, 219. 



Aldehydes, in distilled liquors, 29. 



Alectryonia folium Lam., 328. 



Alluvium, of southwestern Luzon, 74. 



Almaciga tree, bark of, 174 ; size of, 174 ; 

 source of Manila copal, 175. 



Ammonia, tests for, 430. 



Amusiopecten burdigalensis var. elongata 

 Sacco., 328. 



Analyses of Philippine Clays, 149. 



Anchusa tinctoria Linn., 443. 



Andesites, of southwestern Luzon, 77 ; Sisi- 

 man, 109. 



Aniline, absorption spectra of, 423 ; action 

 of ozone on, 15 ; analysis of, colored by 

 oxygen and sunlight, 11 ; coloration of, 

 430 ; coloration of, in the dark, 16 ; colors 

 sunlight, 434 ; compounds which cause red 

 coloration of, 9, 419 ; effect of sunlight 

 on, 14 ; in dry hydrogen, etc., 430 ; in 

 full tubes, 431 ; in vacuo, 428 ; products 

 formed by reaction of, 434 ; sealed in 

 atmosphere of hydrogen and carbon diox- 

 ide at different pressures, 431. 



Annatto, a natural Philippine dye, 439 ; 



value of,, for dye, 443. 

 Apo volcanic cluster, 359. 

 Area nodosa , Mart., 328 ; A. hispida Phil., 



328. 

 Archangelisia lemniscata Becc, 442. 

 Areca catechu L., 445. 

 I Artesian water in the Philippines, 337. 



Artocarpus integrifolia L., 443. 

 I Asbestos, found in Philippines, 334. 

 J Astarte sp., 328. 

 Atmosphere, influence of tropical sunlight 

 on, etc., 267 ; radioactivity of, 273 ; 

 radium emanation in, 274. 

 Atolls of Sulu, 361. 

 Atom, labile hydrogen, 423. 

 Autoxidation, cause of increase in KGettstor- 

 fer number of Manila copal, 224. 

 i Azophenine, 13. 



B 



BACON, RAYMOND P., Philippine Terpenes 

 and Essential Oils, IV, 257 ; A Prelim- 

 inary Study of the Effect of Tropical Sun- 

 light on the Atmosphere, with some Notes 

 on Radioactive Phenomena in the Phil- 

 ippines, 267 ; A Solution of Oxalic Acid 

 and Uranium Salts as a Chemical Pho- 

 tometer, 281. 



BACON, R. P. See Hulbtjbt, Clinton H., 

 19. 



Balanopbyllia sp., 328. 



Bamboo, cost of raw material for paper mak- 

 ing, 242 ; digestion of chips of, by sulphite 

 process, 239 ; experiments in England on, 

 shipped from India, 235 ; nature and prep- 

 aration of, for paper pulp, 237; paper 

 pulp from, 233, 234 ; quantity available 

 for making paper, 243 ; soda process on, 

 241; white sulphite fiber, 240. 



Bancudo, a dark red color, and very fast, 

 441, 444. 



Basaltic rock, from La Laguna, 140. 



Basalts, 157, 321 ; of southwestern Luzon, 

 77. 



Bay Lake, origin of, 103. 



Berberine, a yellow dye, 440. 



Binangonan limestone, 327. 



Bixa orellana L., 443. 



Brandy, cognac, 23. 



Brazil wood, a natural Philippine dye, 439. 



453 



