Mathematical and Physical Papers. 235 



through the soft material four feet. On removing the drill it was 

 found covered vrith coal and the water taken from the well was 

 black. All the material removed by the bailer was saved and washed 

 out. The drillings from this run proved to be one-fourth coal and 

 three-fourths slate and bituminous shale. They then made a run 

 of one foot all in coal. The next run was four inches in depth, and 

 there was a trace of fire-clay on the point of the bit when removed, 

 indicating that it had reached the bottom of the coal. 



The next run of six inches was made in fire-clay, the drillings 

 being about one-half coal, which was carried down from above, as 

 the bailer is so constructed that it does not remove all the drillings, 

 but leaves about a foot of them in the bottom each time, which 

 would necessarily be mixed with the drillings of the succeeding run. 



The thickness of the coal as thus shown was twenty-eight inches. 



Another estimate of the thickness of the coal was made in the 

 following manner : 



From the 4-foot run 665 cubic inches of coal was saved. 

 1-foot run 960 

 4-inch run 288 " 

 6-inch run 265 " " 



Total 2,178 



Dividing the total number of cubic inches saved by 960, the 

 number of cubic inches saved from the one-foot run in pure coal, 

 we have 2.27 feet, or 27J inches, as the total thickness of the coal. 



An analysis of the coal yielded the following quantities : 



Water 7.96 per cent. 



Volatile matter 33.13 



Fixed carbon 39.64 " 



Ash 17.27 



Total 100.00 per cent. 



The coal cokes readily and leaves a reddish-brown ash. 

 A sample was sent to Prof. E. H. S. Bailey, of the University of 

 Kansas, and the following report was received from him : 



"Moisture 7.91 per cent. 



Volatile and combustible matter 35.38 " 



Fixed carbon 38.08 " 



Ash 18.63 



Total 100.00 per cent. 



' ' The coal leaves a red ash and cokes quite readily. By comparing it 

 with other Kansas coals which are mentioned in volume III of the Kansas 

 Geological Survey, it is evident that in some characteristics this coal is like 

 the Osage ; others like one sample of Lansing coal analyzed. The chief ob- 

 jection to the coal is the high percentage of ash. E. H. S. Bailey." 



