ECONOMIC. 103 



The letters refer to the section on page 59, and shew the position 

 of the samples. The inferior bands are o. and q., aggregating 4 inches. 



Ft. In. 



n. Good coal ... ... ... 3 3 



o. Inferior „ ... ... ... 2 



p. Strong „ ... ... ... 2 



q. Inferior „ ... ... ... 2 



r. Good „ ... ... ... 2 



■ No. 3. Sdsti. — The best samples from B shaft gave — 



Carbon ... ... ... ... 74-07 



Hydrogen ... ... ... ... 4'90 



Oxygen and nitrogen ... ... ... 9'92 



Ash ... ... ... ... 11-09 



Loss 



99-98 

 •02 





100-00 



No. 4. Sdsti. — Samples from C shaft — 

 Carbon 

 Hydrogen 



Oxygen and nitrogen 

 Ash 



... 74-33 



... 4-60 

 ... 12-15 

 ... 8-09 



Loss 



99-17 

 •83 





100-00 



Aniargaon. — Samples procured by myself from the outcrop. Average 



composition — 



Fixed carbon ... ... ... ... 46*8 



Volatile matter, including 8 - 7 per cent, moisture ... 34'4 



Ash ... ... ... ... 18-8 



100-0 



The above analyses will, I think, convey a fair impression of the 



composition of the coals in this field ; and I now propose to offer a few 



( 103 ) 



