EDDINGFIELD, F. T. Ore Deposits of the Philippine Islands ... 81 

 REIBLING, W. C. A Bonus System for the Purchase of Portland 



Cement 107 



EDDINGFIELD, F. T. Alteration and Enrichment in Calcite- 



quartz-manganese Gold Deposits in the Philippine Islands 125 



EDDINGFIELD, F. T. Gogo, Entada scandens Bentham, and its 



Effect on Gold and Gold Solutions 135 



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