﻿400 SMITH. 



2. "Esperanza;" 50 centimeters, strike the same as above, dip same; 

 9 meters interval. 



3. "Enrique Abella;" thickness 1.20 to 1.50 meters, strike N. 23° E., 

 dip 40° to SE.; 40 meters interval. 



4. "Pilarica;" thickness 1.40 meters, strike N. 23° B., dip 30° SE. 

 There formerly existed over 300 meters of drifts at the old Licos 



workings. About 100 tons of coal, taken from the "Esperanza," "Ramon- 

 cita" and "Enrique Abella" galleries have been on the dump for three 

 or four years. In this time the coal has not taken fire, nor has it "air- 

 slacked" very greatly, which bodes good for its handling and storing. 

 The coal throughout the district is remarkably free from dirt, "butter" 

 and "bone" and is quite low in sulphur. 



We believe that this coal will ultimately find its greatest utility as a 

 gas producer and with this end in view it should be mentioned that Dr. 

 Cox, of this Bureau, is devoting much of his time to experimenting on 

 this problem. It is hoped that at no distant date the Bureau of Science 

 will be able to make a practical demonstration in this direction. The 

 Philippine Commission has just appropriated a sum sufficient to cover 

 the expense of installing a producer gas plant at the laboratory of this 

 Bureau. 



Dr. A. J. Cox has added a contribution from his own chemical inves- 

 tigations. His report is as follows: 



The quality of the eoal from the Cebu fields is no exception to the general 

 average of this commodity in the Philippines. I have been over a large part 

 of the territory and have analyzed samples from all the sources where coal is 

 known to occur. None of the samples show a woody structure., and in general 

 the coal is compact, lustrous and commonly has both hackly and conehoidal 

 fracture. The coal as mined is very black, but when finely powdered (60 mesh) 

 it assumes a tinge of brown. It is of the non-coking, sub-bituminous to bitumi- 

 nous variety. The latter class is perhaps best represented by that from the Com- 

 postela region. In this field the active work which is now being carried on is 

 beyond the prospecting stage, so that more definite information is at hand 

 regarding the extent of the deposits and thoroughly average samples have been 

 obtained for chemical work. A study of the volatile matter from this coal shows 

 it to contain a fairly good percentage of heavy hydrocarbons and it could 

 probably be used successfully as a gas coal. The composition of the gas and the 

 yield from this coal is not greatly different from that obtained from Polillo 10 

 coal. Attention has already been directed to the peculiar, elliptical, pit-like 

 markings which characterize Compostela coal. 11 



I have analyzed a great many samples from both the Carmen and Compostela 

 fields. Some of the results have already been published 12 and other more recent 

 determinations will be printed in a future communication. Barring diluents, 

 water, ash, sulphur, etc., and considering the relation of the percentage of 

 volatile combustible matter to fixed carbon, which by many authorities is taken 



1,1 Cox, A. J.: This Journal (1906), 1, 893. 

 ''Ibid, Sec. "A," Gen. Sci. (1907), 2, 50. 

 "Ibid, 52. 



