416 
Keport of the Assistant Chemist of the 
Ash Analysis. 
A partial analysis of the ash of the grasses was made, with results 
as shown in the following table: 
Plat. 
TIMOTHY. 
Ash. 
Phos- 
phoric 
acid. 
r 2 o 5 
Potash. 
K2 
Soda. 
Na 3 
Lime. 
CaO 
Magnesia. 
MgO 
VI. .. 
Full bloom .... 
4.41 
4.96 
32.88 
4.48 
8.64 
2.53 
VI. .. 
Late cut 
3.60 
4.50 
28.87 
6.68 
13.20 
2.01 
XV. . . 
Full bloom. . . . 
5.54 
6.95 
30.72 
5.28 
10.00 
2.24 
XV. .. 
Late cut : 
4.51 
7.24 
26. G8 
11.20 
11.20 
1.65 
XIX. . . 
Full bloom. . . . 
5.54 
6.14 
29.96 
7.76 
2.04 
XIX. . . 
4.84 
6.03 
29.44 
6.82 
7.68 
2.16 
In the late cut hay the per cent of ash was considerably diminished 
and the conrposition of the ash had changed. There was a marked 
increase in soda and of lime in VI and XV, and a corresponding fall- 
ing back in per cent of potash and magnesia except in the last, while 
in phosphoric acid there was a gain in per cent in one instance and a 
loss in the other two. The figures may be more suggestive by calcu- 
lating the per cent of ash constituents in the hay itself, dry substance, 
as given in the following table: 
Plat. 
TIMOTHY. 
Phos- 
phoric 
acid . 
p 2 o 5 
Potash. 
K 2 
Soda. 
Na 2 O 
Lime. 
Ca O 
Magnesia. 
MgO 
Nitrogen 
VI. .. 
Full bloom 
.219 
1.450 
.197 
.381 
.111 
1.28 
VI. .. 
Late cut 
.172 
1.039 
.240 
.475 
.072 
1.02 
XV. .. 
Full bloom 
.385 
1.702 
.293 
.554 
.124 
1.30 
XV. .. 
Late cut 
.326 
1.203 
.505 
.505 
.074 
1.03 
XIX. . . 
Full bloom 
.340 
1.659 
.430 
.119 
1.25 
XIX. . . 
Late cut 
.292 
1.425 
.330 
.372 
.104 
.98 
Calculated in the hay, dry substance, we find the relation between 
our figures do not hold, in all cases, the same as in the ash. In the 
hay we find a diminution in the proportion, of phosphoric acid, potash, 
magnesia and nitrogen taken up by the timothy, as it approached 
maturity, and a considerable increase in soda, while with the lime we 
find both gain and loss. 
Conclusions. 
Having now examined the early and late cut timothy so fully as our 
time will admit for the present, we may briefly summarize from the 
tables already given such conclusions as seem permissible from our 
data. 
