42 ECONOMICAL GEOLOGY. 



Total depth 859 7 



The limestone and shale parting in the coal at Kinmundy, is 

 a feature that I have observed nowhere else in the state. It is 

 probably a local development only, and may wedge out in some 

 direction in a short distance. In whatever direction the coal 

 thickens ' as the work of exploitation progresses, it should be 

 followed, with the expectation that the two divisions will gradu- 

 ally approach each other by the thinning out of the stony 

 parting until they finally come together. 



A boring to the depth of about 130 feet from the bottom of 

 the shaft, reported only one seam of coal about eighteen inches 

 thick about seventy feet below the main coal. 



An analysis of two samples of coal from the Kinmundy shaft, 

 by Prof. Barrett of the University of Illinois, gave the following 

 result : 



FIEST SAMPLE. SECOND SAMPLE. 



Ash 12.54 Ash 13.13 



Moisture 8.40 Moisture 8.32 



Fixed carbon 48.04 Fixed carbon 48.66 



Volatile matter ... 30.26 Volatile matter ... 30.03 



99.24 100.04 



Per cent, of sulphur in coal 2.85 



Per cent, of sulphur in coke 0.97 



