Report of the United States Philippine Commission to the Secretary of War ..., Part 1U.S. Government Printing Office, 1909 - Philippines |
Contents
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Common terms and phrases
Abella Abra Albay Ambos Camarines American amount andesite Angat archipelago assays Baguio Batan Island beds Benguet Benguet Province Binangonan Bulacan capital Cebu cent chief clay coal deposits coast concessions considerable copper Danao diorite district dredge east Eveland extensive feet field formation fuel furnace geological geologist gold mines gravel Ickis Igorots Ilocos Ilocos Norte important inches iron island of Batan known labor Lepanto lignite limestone located lode Luzon Mambulao Mancayan Manila Marinduque Masbate metal meters miles mill Mindanao Mindoro mineral resources mining bureau mining claims mining industry mining law mountains natives Nueva Nueva Ecija obtained occurs operations ounces outcrop Paracale Philippine coals Philippine Islands present prospecting prospectors province pyrite quantity quartz region result rich River Rizal samples seams smelting Spanish streams sulphur Surigao survey Suyoc thickness timber tion topographic transportation tunnel veins volcanic
Popular passages
Page 37 - All valuable mineral deposits in lands belonging to the United States, both surveyed and unsurveyed, are hereby declared to be free and open to exploration and purchase, and the lands in which they are found to occupation and purchase, by citizens of the United States...
Page 109 - Mining Bureau; to make a collection of models, drawings, and descriptions of the mechanical appliances used in mining and metallurgical processes; to preserve and so maintain such collections and library as to make them available for reference and examination, and open to public inspection at reasonable hours; to maintain, in effect, a bureau of information concerning the mineral industries of this State...
Page 549 - ... or revenue service of the United States, when so instructed by the President, to seize and arrest all vessels of the United States found by him to be engaged, used, or employed in the waters last aforesaid in violation of any of the prohibitions of this act or of any regulations made thereunder, and to take the same, with all persons on board thereof, to the most convenient port in any district of the United States mentioned in this act, there to be dealt with according to law.
Page 543 - Provided, That no article of this paragraph shall pay a less rate of duty than twenty-five per centum ad valorem.
Page 109 - It shall be his duty: to collect statistics concerning the occurrence and production of the economically important minerals and the methods pursued in making their valuable constituents available for commercial use...
Page 7 - Mindanao, being practically unexplored, is full of possibilities, but as yet no important copper deposit is known to exist there. An attempt was made to work the deposit in Masbate, but no success seems to have been attained.
Page 471 - High-grade clays show a percentage of silica, alumina, and water approaching quite closely to those of kaolinite. " 2. The refractoriness of the clay for, other things being equal, the greater the total sum of fluxing impurities, the more fusible the clay. "3. The color to which the clay burns. This may be judged approximately, for clays with several per...
Page 62 - ... rocks, at least, date back nearly to the great upheaval. Among these rocks, also, there is sometimes a tendency for the basalts to follow the andesites, but the one dacite found at Corregidor is later than the andesites of that island. The relation of the trachytes to the andesites is not certain, but the sanidine rock is probably the earlier. A very large part of the neovolcanic ejecta has fallen into water and been rearranged as tuffaceous plains. The...
Page 62 - The diorites and associated massive rocks, including their tuffs, may have made their appearance about the close of the Paleozoic. The less siliceous of these rocks seem to have followed the more siliceous intrusions as a whole. The gold deposits, and perhaps other ores, are so associated with these massive rocks as to indicate a genetic relation. The neovolcanic period began as early as the highest Miocene horizon, and very probably at post-Eocene upheaval.
Page 5 - Though a considerable amount of coal has been extracted here, the industry has not .been a profitable one hitherto. This is, at least in part, due to crude methods of transportation. It is said, however, that the seams are often badly faulted. At Uling, about 10 miles west of the capital, the seams reach a maximum thickness of 15£ feet.