74 



ECONOMICAL GEOLOGY, 



ANALYSIS— Marsh Mud. 



1 was taken from the surface of the marsh opposite 

 South Dennisville, last spring, and is entirely composed of 

 the deposit of last winter. 



2 was taken from the bank of a creek in in Richard C. 

 Holmes' meadow, near Cape May C. H. 



3 was sent to me by Charles Ludlam, of Dennisville, 

 and was taken from the bank of Dennis Creek. 



The following is the analysis of a subsoil from the farm 

 of Wm. J. Bate, of Fishing Creek. 



ANALYSIS. 



Silica 87.468 



Iron and alumina 7.940 



Lime 0.423 



Magnesia 0.647 



Potash 0.610 



Sulphuric acid 0.236 



Phosphoric acid 0.134 



Organic matter 1.760 



Water 1.353 



100.571 



