﻿THE PHILIPPINE 



Journal of Science 



A. General Science 



Vol. II MAY, 1907 No. 2 



PHILIPPINE FIBERS AND FIBROUS SUBSTANCES: THEIR 



SUITABILITY FOR PAPER MAKING. PART III 



(CONCLUSION). 



By George F. Richmond. 

 (From the Chemical Laboratory, Bureau of Science, Manila, P. I.) 



INTRODUCTION". 



The gradual but certain decrease in the available supply of the leading 

 paper makers' raw material at the present time is further emphasized, 

 by recent compilations concerning the American pulp wood industry. 

 Some of the more important considerations brought out in a circular 

 report on wood used for pulp x in 1905 are : 



First. The increase in the quantity consumed, 3,192,223 cords being- 

 used during 1905, or a gain of 60.7 per cent over the corresponding 

 figures for 1899. 



Second. The increased use of chemical processes for the reduction of 

 wood to paper pulp. In 1905 the proportions were approximately 66 

 per cent of chemical and 34 per cent of mechanical pulp; these percent- 

 ages representing a gain of 74.7 per cent for the chemical process as 

 against one of 39.4 per cent for the mechanical during six years. 



Third. The greatly increased use of woods other than spruce and 

 poplar, and a more general utilization of waste products from lumbering 

 industries. Such wood species as hemlock, fir, southern, pitch and 



1 Hale, H. M. : U. S. Dept. Agriculture, Forest Service Girc. (1906), No. 44. 

 54329 81 



