RICHMOND. 



For the purposes of illustration and comparison the more closely allied oils from 

 other sources are tabulated with the oil in question as follows: 



Source. 



Spe- 

 cific 

 gravity. 



Light, oils 

 below 

 150°C. 



Kero- 

 sene, 

 150-300°C. 



Lubri- 

 cating 

 oils. 



Coke. 



Russian 



Italian 



0.780 

 0.787 

 0.807 

 0.771 

 0.813 

 0.769 

 0.777 

 0.826. 



Per ct. 

 48.9 



43.9 



37.3 



37.2 



30.4 



30.0 



28.0 



39.0 



Per ct. 

 43.9 



46.5 



40.4 



52.0 



51.7 



45.0 



49.0 



47.1 



Per ct. 



Per ct. 



5.5 

 19.9 



5.9 

 11.2 

 16.1 

 14.5 

 13.9 



0.0 

 0.3 

 0.5 

 1.7 

 0.0 

 0.0 

 0.0 



Do 



Sumatra 



Do 



Do ... 



Do 



Tavabas ... 





The oil examined has nothing in common with oils from other Philippine 

 sources examined by Redwood, or in this laboratory. It is also very unlike the 

 recorded data on Burma, Borneo, and Java oils. I can not explain its high 

 gravity, 0.826 to 0.827, from the findings of the above tests, but there is no 

 indication to the undersigned that other crude oil, distilled petroleum products or 

 residue have been added. Its extreme clearness and freedom from water and 

 sediment strongly suggest that the oil may have been subjected to some form 

 of clarification. 



(Signed) G. F. Richmond. 



In July, 1909; Dr. George I. Adams, of the division of mines, Bureau 

 of Science, visited the Tayabas oil district and collected two authentic 

 samples of oil from the well on the Bayhay Elver for further examination. 



Sample No. 1 was pumped from the well just as it was found, after having 

 been undisturbed for some time. 



Sample No. 2 was pumped from the well the following day after it had been 

 emptied in securing Sample No. 1. 



Accordingly, sample No. 1 represents the oil after it had lost some of 

 its more volatile constituents and sample No. 2 represents it as it comes 

 from the oil-bearing strata. A preliminary examination of the two sam- 

 ples gave the following results : 





No. 1. 



No. 2. 





0.845 



0.831. 



70° 



36.5 per cent. 



48.75 per cent. 



14.75 per cent. 



100.00. 





80° 



27 per cent 



56.75 per cent. 

 16.25 percent. 



Istfraction (light oils) 70 to 150° . ... 



2nd fraction (burning oils) 150 to 300° 









The higher specific gravity, higher initial boiling temperature and 

 lower proportion of the light oil fraction of sample No. 1 is readily 

 explained by the character of the two, both of which are authentic. The 

 chemical and physical constants of sample No. 2 substantiate the authen- 



