CALORIFIC VALIiE OF PHILIPPINE COALS. 



191 



In the Goutal formula the second factor of the equation is a function 

 of the ratio between the volatile and the fixed combustible matter. 

 The analytical data given in the preceding table have been recalculated 

 to the ash and water free (pure coal) basis, which shows this ratio, and 

 the results are given in the following table : 



Table III. 



No. 



Source. 



Fixed 

 carbon. 



Volatile 

 combus- 

 tible 

 matter. 



1 

 2 

 3 

 4 

 5 



7 

 8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 26 

 •26 

 27 

 28 

 29 

 30 

 31 

 32 

 33 

 34 

 35 

 36 

 37 

 38 

 39 

 40 

 41 

 42 

 43 

 44 





Per cent. 

 49.07 

 49.87 

 50.92 

 50.06 

 50.96 

 60.67 

 50.96 

 51.22 

 48.85 

 60.43 

 55.72 

 58.93 

 55.06 

 58.64 

 52.75 

 56.36 

 56.33 

 55.59 

 56. 36 

 46.52 

 56.63 

 47. 45 

 67.26 

 65.01 

 57.54 

 66.61 

 66.91 

 55.42 

 56.47 

 57.06 

 64.27 

 53.70 

 56.46 

 .56.98 

 57.16 

 57.82 

 .53. 09 

 64.38 

 65.68 

 64.28 

 ,56.04 

 65.50 

 57.60 

 61.32 



Per cent. 

 50.93 

 50.13 

 49.08 

 49.94 

 49.04 

 49.43 

 49.04 

 48.78 

 51.15 

 49.57 ■ 

 44.28 

 41.07 

 44.94 

 41.36 

 47.26 

 43.65 

 43.67 

 44.41 

 44.65 

 53.48 

 43.37 

 62.66 

 42.74 

 44.99 

 42.46 

 43.49 

 43.09 

 44.58 

 43.53 

 42.94 

 45.73 

 46.30 

 43.54 

 43.02 

 42.84 

 42. 18 

 46.91 

 45.62 

 44.32 

 45.72 

 44.96 

 44.50 

 42.40 

 48.68 



do 



do 



Batan Island, north side of eastern end 



Batan Island, south side of eastern end 



..._ do 



Batan Island, Betts' (1905) 



Batan Island, Belts' (April, 1907) 



Batan Island, Betts' (May, 1907) 



Batan Island, Betts' (June, 1907) 



Batan Island, Military Reservation 



do _ 



do. 



Batan Island, Military Reservation (seam No. 5) 



_ _.do .._ 



do 



do 



_do 



do- — 



Batan Island, Military Reservation (lower seam No. 5) _ 

 Batan Island, Military Reservation (upper seam No, 5)_ 

 Batan Island, Military Reservation (seam No. 4) 



Polillo 



do.- - 



do 







Polillo - - 



do - - - 



do 



Philippines - 



do - 





-do .. .- 





do - . — 









Cebu, Camansi (vein No. 3) - _ 



Cebu, near Carmen 



do 



