CHEMICAL AND PHYSICAL PAPERS. 57 



Sample No. 28 was from the Brewster well of the Drum Creek Oil 

 and Gas Company. This is the same well as No. 25, but this oil was 

 pumped directly from the well. 



Sample No. 29 was from the W. S. Gilliland well No. 1 of the 

 Caney Gas, Oil and Mining Company, at Caney, Montgomery county, 

 section 5-35-14. It was taken directly from the well. 



Sample No. 30 was from the M. DeArmond No. 2 of the Inter- 

 state Oil and Gas Company, at Peru, Chautauqua county, section ID- 

 S'! -12. It was taken from the flowing well. 



Sample No. 31 was from the T. L. DeArmond well No. 1 of the 

 Interstate Oil and Gas Company, at Peru, Chautauqua county, sec- 

 tion 15-34-12. It was blown from the well by natural gas. 



Oil No. 30 was said to come from the oil sand at a depth of from 

 920 to 960 feet, while that in No. 31 was said to come from a sand at 

 596 to 611 feet. These wells were only a few hundred feet apart. 



Sample No. 32 was said to be from a well on the G. R. Wheeler 

 farm, near Tyro, Montgomery county, section 30-34-15. This sam- 

 ple was furnished the writer by Mr. B. B. Canterbury, of Coffeyville. 



Oils from outside the state of Kansas have been obtained as fol- 

 lows : 



Sample No. 12 was from the Newcastle, Wyo., field, and was sent 

 to us by Prof. E. E. Slossen, of the University of Wyoming. 



Sample No. 18 was sent to us from Lima, Ohio, by Mr. C. J. 

 Brotherton, of that city. 



Sample No. 18 was from the Bartlesville, I. T., field, and was ob- 

 tained by one of us from a tank-car. 



Samples 33, 34 and 35 were obtained for us by Mr. Wesley Mer- 

 ritt, the industrial commissioner of the Santa Fe system. 



Sample No. 33 was from Beaumont, Tex. 



Sample No. 34 was from the Olinda district, California. 



Sample No. 35 was from the Kern River district, California. 



The table on next page shows a comparison of the specific gravity, 

 flash and burning points of these samples. 



From those analyses we would call attention to the following facts : 

 The specific gravity varies greatly, from .845 to .949, a difference of 

 about .100. In general, the oils of the higher specific gravity are 

 found in the northeastern part of the field, although in the neighbor- 

 hood of Humboldt, in the northeastern section, we find oils of a spe- 

 cific gravity of .860 and .940, a difference of .074. One sample sent 

 to us from near Bolton has a specific gravity of .741. This is .200 

 below the heaviest oil that we collected personally. Exclusive of the 

 very light sample, which seems phenomenal for Kansas, there is a 

 greater variation than we have found recorded for any other field. 



The flash points and burning points vary from below lO'' C. in the 



