336 AGRICULTURAL TEXT-BOOK. 



places, and is sufficiently abundant throughout Michigan and 

 the other Western States. Like all other similar substances, it 

 is subject to many variations in its composition. Some speci 

 mens contain a large proportion of ammonia, and they all ap 

 pear to be rich in salts and carbon. 



Analysis of peat from Paisley Moss, Scotland, viz : an upper 

 peat, (A ;) an under peat of the same bed, (B ;) and of the 

 Dutch ashes, formed of peat, (B.) (Johnston.) 



A. B. C. 



Organic matter, (charred peat,) - 54.12 3.02 25.77 

 Sulphates and carbonates of potash.) 



soda, and magnesia, soluble in&amp;gt; 6.57 5.1 2.78 



water, ) 



Alumina, soluble in acids, - - 2.99 2.48) 



Oxide of iron, - 4.61 18 6G$ 



Gypsum, - 10.49 21.23 16.35 



rhosphate of lime, - - 0.90 0.40 1.24 



Carbonate of lime, - - 8.54 3.50 1.21 

 Carbonate of magnesia, 3.39 



Insoluble siliceous matter, - - 10.88 43.91 37.24 



99.10 98.36 99.17 

 Analysis of 10 varieties of Peat from Massachusetts. 



Average, 29.41 55.03 84.44 15.55 



By the word &quot; Geine&quot; this writer means the vegetable matter of soils, 

 also called Humus, Ulmin, tfcc., and represented by the symbol C 40, 



