498 [AssEsm.? 



March 3, 1846. 

 ANALYSIS OF COAL. 



Mr. Wakeman — ^I present an analysis made by Dr. Chilton, of 

 the ashes of anthracite coal. We have desired that analyses should be 

 made of the ashes of the various coals now so generally used as fuel, 

 in order to ascertain what value ought to be attached to them as 

 manures or as useful to soils. The quantity of the ashes being great, 

 we would, if they are valuable as applied to our soils, have it known, 

 that they may not as many other articles of immense value to the 

 farmer, be wasted. The following is Professor Chilton's analysis of 

 Lackawana coal, viz.: 



Silica, 4500 



Lime, - -- 6.25 



Alumina, - 42.50 



Oxide of Iron, - - 5.25 



Magnesia, &,c., — --- 1.00 



100.00 



Analysis of the Ashes of Lehigh Coal. 



Silica, 54.51 



Lime, -- — 3.63 



Alumina, 38.00 



Oxide of Iron, 3.45 



Magnesia, &c., --- 2.25 



101.84 



Col. Clark — -The analyses of coals exhibit some various results 

 even in the same coal beds. They are generally, however, nearly 

 uniform in their constituent parts. 



Roswell L. Colt — I am told that Professor Liebig says azote that 

 is in various grains, forming their nutriment is, for 



Wheat, 2.17 



Rye, 2 04 



Oats, - 1.96 



Beans, - 5. 11 



Kidney Beans, - - 4.03 



Peas, 3.40 



Barley, 1.76 



