ANALYSES OF BEANS. 283 



It appears from the foregoing analyses, that the ashes of the several varieties of bean 

 differ somewhat; the greatest deviation from the majority of them being in the Turtle- 

 soup bean. The ash varied somewhat in the degree of causticity, or in the amount of 

 carbonic acid. The ash, in each instance, was perfectly burned and white. There is a 

 great resemblance between the composition of the ash of beans and that of the cereals, 

 in respect to their richness in earths, alkalies and phosphates. 



The exhausting power of a crop of beans may be determined by the following calcula- 

 tions. A bushel of beans weighs about 60 lbs. There will be removed in every ten 

 bushels of beans : 



Turtle-soup bean. Horticulturist bean. 



lbs. oz. lbs. oz. 



Silica 8-584 0-755 



Earthy phosphates 2 2-732 7 8-360 



Alkaline phosphates - - • - 1 10-936 14-160 



Lime 0-592 



Magnesia ...... 



Potash 3 10-045 8 15-790 



Soda 4 7-780 2 11-329 



Sulphuric acid 1 0-280 1 0-387 



Chlorine 0-037 



16 8-949 21 2-818 



There will be removed in a ton of foliage : 



lbs. oz. 



Silica 14 15-341 



Earthy phosphates 15 12-861 



Lime 3 7-965 



Magnesia- ... ... 0-608 



Potash ....... 4 13-977 



Soda .... - - 25 0-160 



Sulphuric acid 5-129 



Chlorine 1-304 



64 9-345 



Beans, although put upon what is regarded the barren soils, still make shift to supply 

 themselves with the richest and most valuable constituents of the soil ; and hence they 

 may be regarded as an exhausting crop. The plan of starving the bean is, after all, the 

 true mode of treating it , otherwise it would become strong and unpalatable. 



