404 



Index 



Calophyllum blancol PI. & Tr., 196. 

 inophyllum L., 107. 

 ■wallichianum. 111. 

 Calumpang, 108. 

 Camanchile bark used for tanning material, 



353. 

 Camansi, Cebu, coal at, 292. 

 Camarines, iron ore on Calambayanga Island, 



Mambulao, 323. 

 Camarines Province, geologic reconnaissance 



in Caramoan Peninsula, 303. 

 Canagium odoratum Baill., 99. 

 Canarium pachyphyllum Perk., 109. 



villosum, 355. 

 Canguinsa clay-tufl^ in Leyte, 250. 

 Caramoan Peninsula, Camarines Province, geo- 

 logic reconnaissance in, 303. 

 Cardium sp., 199. 

 Carica papaya L., 1. 

 Casease (cacao), test for, 126. 

 Cassidaria sp., 199. 

 Castor-oil seed, 107. 

 Cateban bark, 355. 

 Cato, 107. 

 Cebu, coal in, 291. 



petroleum in, 281. 

 water supplies of, 144. 

 Ceiba pentandra (L.) Gaertn., 107. 

 Cenosphaera, 224. 



disseminata, 224. 

 minuta, 224. 

 Cerithium nodulosum, 248. 

 Chalcedony, 85. 

 Chalcocite, 85. 

 Chalcopyrite, 85. 

 Check list, preliminary, of Philippine minerals, 



81. 

 Chert, 85. 



Chisochiton cumingianus (Harms), 107. 

 Chlorite, 85. 

 Chromite, 85. 

 Chrysoprase, 85. 

 Chrysotile, 86. 

 Cinnabar, 86. 



Clay in Caramoan Peninsula, 318. 

 Clay products in Mountain Province, 201. 

 Clay-tuff, Canguinsa, in Leyte, 250. 

 Coal at Camansi, Cebu, 292. 

 Coal at Compostela, Cebu, 292. 

 Coal at Guilaguila, Cebu, 292. 

 Coal at Uling, Cebu, 292. 

 Coal beds, the persistence of Philippine, 289. 

 Coal in Caramoan Peninsula, 318. 

 Coal in Mountain Province, 201. 

 Coal in the vicinity of San Esteban, Sorsogon, 



290. 

 Coal on Batan Island, Albay, 297. 

 Compostela, Cebu, coal at, 292. 

 Conglomerate in Mountain Province, 199. 

 Conus, 199. 



flavidus, 248. 

 hochstetteri, 248. 

 loroisii, 248. 

 striatellus, 248. 

 Copeland, Edwin Bingham, see Reviews 



(book). 



Copper, 86. 



Copper in Caramoan Peninsula, 317. 



Coralline limestone, suitability of, for wells, 

 235. 



Corundum, 86. 



Cottonseed oil, maximum and minimum prices 

 of, 105. 



COX, ALVIN J., and DAR JUAN, T., Salt in- 

 dustry and resources of the Philippine 

 Islands, 375. 



Crenothrix, 146. 



Crocoite, 86. 



Culase, 381. 



Cuprite, 86. 



Curibot, 395. 



Cycloclypeus communis, 248. 



Cycloseris decipiens K. Mart., 199. 



Cyperaceae, 197. 



D 



DAR JUAN, T., review of Bailey's A labor- 

 atory guide to the study of quantitative 

 analysis, 97 ; see also COX, ALVIN J., 375. 



Diallage, 86. 



Diatase (cacao), tests for, 130. 



Dictyomitra, 224. 



affinis, 224. 



Diethylsuccinosuccinate ( ethyldioxydihydroter- 

 aphthalate) : A study of its constitution, 

 some derivatives, and absorption spectra, 51. 



Diorite in Mountain Province, 193. 



Diplodiscus paniculatus Turcz., 196. 



Dipterocarpaceae, 196. 



Diurnal variation, a determination of the, of 

 the radioactivity of the atmosphere at Ma- 

 nila by the active deposit method, 37. 



Dosinia sp., 199. 



Dudos, 107. 



E 



EDDINGFIELD, F. T., see SMITH, WARREN 



D., 81. 

 Emulsin (cacao), tests for, 126. 

 Enargite, 86. 

 Enol and keto forms of diethylsuccinosuccinate, 



53. 

 Enzymes of cacao, 123. 

 Epidote, 86. 



Et hy Idioxy di hy droteraphthalate, 5 1 . 

 Ethylsuccinosuccinate, reduction of, 54. 



F 



FANNING, PAUL R., see SMITH, W. D., 81. 

 Flows, tuffs, and agglomerates. Pliocene, in 

 Caramoan Peninsula, 308. 



G 



Galena, 87. 



GANA, VICENTE Q., The leather industry of 

 the Philippine Islands, 349. 



Garnet, 87. 



Geologic reconnaissance in Caramoan Penin- 

 sula, Camarines Province, 303. 



Geologic reconnaissance of Mountain Prov- 

 ince, Luzon, P. I., 177. 



Geology of Panay, notes on the, 211. 



