408 BOAKD OF AGRICULTURE. 



Peat. 



(Sent on from Harwich, Mass.) 



Moisture, 78.2G per cent. 



Dry matter . . 21.74 " 



Total ash, 1.31 



Insoluble matter, 1.08 



Ash soluble in acids, 23 " 



(Ash soluble in acids consisted of traces of lime, 

 magnesia and phosphoric acid.) 



Nitrogen in wet peat, 41 " 



Nitrogen in air-dry peat (31 per cent, water), . . 1.30 " 

 Nitrogen in perfectly dry peat, 1.89 " 



This sample is a fair article of its kind ; exposure to the 

 air and some addition of lime tends to improve its fitness as 

 an absorber and a source of nitrogen. Light soils benefit 

 most by its application. 



Marl. 



(Sent on from Harwich, Mass.) 



Moisture, 



Organic and volatile matter, . 



Ash constituents, 



Mineral matter soluble in acids, . 



Mineral matter soluble in acids contained : 



Calcium oxide, 



Alumina, iron and phosphoric acid (traces). 



Magnesia, 



Alkalies (traces of potassium oxide) , . 



This material contains a small amount of valuable plant 

 constituents, and can, in exceptional cases only, compensate 

 for the cost of transportation. 



Raw Wool. 



(Fleece from Argentine Republic sent on for examination from Clinton, Mass.) 



Moisture, 6.95 per cent. 



Organic and volatile matter, 



Ash constituents, 



Insoluble matter, ... 

 Fatty matter (ether abstract), 

 Nitrogen, 



92.46 

 7.54 

 3.63 

 3.92 



12.88 



