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AGRICULTURAL TEXT-BOOK. 



to affect the conversion of the starch of the seed into dextrine 

 and grape sugar. 100 Ibs. of barley yield about 80 Ibs. of malt, 

 part of which difference is the loss of the water previously con 

 tained in the barley. Thompson gives the following compara 

 tive table of barley ; and malt made from the same grain ; show 

 ing the change which takes place in the organic constituents : 



Or the loss sustained by barley in malting may be stated 

 follows : 



Water, 



Saline matter, 

 Organic matter, 



6.00 percent. 

 0.48 

 12.52 



242. Barley is rarely or never used in America and Great 

 Britain as bread, but it is eaten in soups and given to the sick 

 as Pot and Pearl Harley, in which condition it is considered 

 very nourishing. This form is produced, by nibbing the grains 

 in an appropriate machine, till they are deprived of the husk 

 and outer coats, and become spherical. Such barley is generally 

 imported into the United States from Scotland, but there is no 

 reason why it should not be prepared here. A porridge mack 

 of barley meal is used in Scotland. 



243. The quantities of mineral matter removed from the acre 

 by a crop of 40 Imperial Bushela of Barley, and 2650 Ibs. of 

 straw are as follows : 



