406 



Index 



Minium, 90. 

 Mitra sp., 248. 

 Molybdenite, 90. 



Mount Maquiling, active deposit on, 43. 

 Mountain Province, notes on a geologic recon- 

 naissance of, 177. 

 Muscovite, 91. 



N 



Nauclea calycina, 

 Niter, 91. 



355. 



O 



Oil, cottonseed, maximum and minimum prices 

 of, 105. 



Oil in Mountain Province, 202. 



Oil, peanut, maximum and minimum prices of, 

 105. 



Oil-bearing seeds, Philippine, and their prop- 

 erties, 105. 



Oligoclase, 91. 



Olivine, 91. 



Opal, 91. 



Operculina costata, 248. 



Ore, iron, in Surigao Province, 335. 



Ore, iron, on Calambayanga Island, Mambulao, 

 Camarines, 323. 



Orthoclase, 91. 



Osmium, 91. 



Oxidases (cacao), tests for, 129. 



Pagsahinging bark, 355. 



Pagsainguin, 109. 



Palo maria de la playa, 107. 



Palo maria del monte. 111, 196. 



Panay, notes on the geology of, 211. 



Panay, water supplies of, 148. 



Papain, Ceylon, 8. 



Papain : Its commercial preparation and 



digestive properties, 1. 

 Papain, Mexican, 11. 

 Papain, Philippine, 12. 

 Papain, West Indian, 12. 

 Papalsa, 107. 



Papaya, preparation of, 32. 

 Peanut oil, maximum and minimum prices of, 



105. 

 Pecten leopardus K. Mart., 199. 



senatorius K. Mart., 199, 248. 

 Penicillium, 124. 

 Petroleum, 91. 



Petroleum and residual bitumens in Leyte, 241. 

 Petroleum in the Province of Cebu, 281. 

 Petroleum products imported in the P. I. in 



1914, table of, 270. 

 Philippsite, 91. 



Phoebe sterculioides Mess., 196. 

 Physic nut, 107. 



Pickeringite (magnesia alum), 91. 

 Pili nut, 109. 

 Pilon, 381. 



Pithecanthropus erectus Du Bois, 197. 

 Pithecolobium dulce Benth., 353. 

 Plagioclase, 92. 

 Platinum, 92. 



Pliocene tuffs, flows, and agglomerates in 

 Caramoan Peninsula, 308. 



Polystomella, 249. 



PRATT, DAVID S., Papain: Its commercial 

 preparation and digestive properties, 1. 



PRATT, WALLACE E., Geologic reconnais- 

 sance in Caramoan Peninsula, Camarines 

 Province, 303 ; Iron ore on Calambayanga 

 Island, Mambulao, Camarines, 323 ; On the 

 occurrence of petroleum in the Province of 

 Cebu, 281 ; Petroleum and residual bitumens 

 in Leyte, 241 ; The location of artesian 

 wells in the Philippine Islands from a 

 geologic viewpoint, 231 ; The persistence of 

 Philippine coal beds, 289. 



PRATT, WALLACE E., and LEDNICKY, 

 VICTOR E., Iron ore in Surigao Province, 

 335. 



Prochlorite, 92. 



Protease (cacao), tests for, 128. 



Psilomelane, 92. 



Pterospermum (?), 197. 



Pyrite, 92. 



Pyrolusite, 92. 



Pyroxene, 93. 



Pyrula, 248. 



gigas, 248. 



Q 



Quartz, 93. 

 Quercus, 355. 



R 



Radioactivity of the atmosphere at Manila, 

 a determination of the diurnal variation of 

 the, by the active deposit method, 37. 



RaflSnase (cacao), tests for, 132. 



Realgar, 93. 



Reductase (cacao), tests for, 129. 



Residual bitumens and petroleum in Leyte, 

 241. 



Reviews (book) : 



Bailey, E. H. S., A laboratory guide to the 



study of quantitative analysis, 97. 

 Bailey, E. H. S., The source, chemistry and 



use of food products, 97. 

 Copeland, Edwin Bingham, The coco-nut, 171. 



171. 

 Van Hall, C. J. J., Cocoa, 171. 



Rhodochrosite, 93. 



Ricinus communis L., 107. 



Rivers and flowing streams, 141. 



Road metal in Mountain Province, 204. 



Rock asphalts and sheet asphalts, analyses of, 

 from Leyte, 271. 



Rocks, instrusive, in Leyte, 252. 



Rocks, massive, igneous, suitability of, for 

 wells, 238. 



Rocks, metamorphic sedimentary, in Cara- 

 moan Peninsula, 310. 



Rocks, metamorphic, suitability of, for wells, 

 238. 



Rutile, 93. 



S 



Sacat fruit, 355. 



Saccharomyces apiculatus, 124. 

 cerevisisB, 124. 



