ACTION OF LIME AS A MANURE. 
7 
was placed between thin zinc plates. Light weights, 300 
grams, were then suspended on the lever, first near the block 
and then at gradually increasing distances. After 15 seconds’ 
action of the weight, the lever was lifted and the grain exa¬ 
mined to see whether it was fractured. If no crack could 
be perceived, the pressure was increased until the grain 
broke. From the distances of the block and weight from 
the fixed point of the lever and the weight applied, the 
pressure required to crack each grain could he calculated 
according to well known physical laws. Of each kind of 
rice at least 25 grains were subjected to this test, and gave, 
in general, sufficiently concordant results, the greatest varia¬ 
tions being, for example, in the case of Takataroku rice 0.25 
kilograms. The average results obtained in this way are 
recorded in the following table : 
No. 
Content of crude 
Pressure to break 
protein in the 
the grains. 
dry matter 
7 ° 
kilograms. 
I) ... 
.8.54 
3- 2 4 
2) ... 
00 
cn 
3-!5 
3 ) ••• 
. 9°5 
3-!7 
4 ) 
••• .. 9- 2 5 
3.20 
5 ) ••• 
. 9-54 
3-95 
6) ... 
.10.12 
3-!3 
7 ) ••• 
.10.71 
4.18 
8) ... 
.10.84 
4.21 
9 ) 
.10.98 
4.08 
10) ... 
.11.26 
4-34 
11) ... 
.ii -93 
4.29 
An exact proportionality between the contents in protein and 
the hardness of the grains can not, of course, be anticipated, 
as the individuality, the variety and manners of drying and 
storing the grain are probably not without influence. But the 
above figures certainly suffice to justify the opinion arrived 
