448 Keport of the Assistant Chemist of the 
Ash Analysis. 
In a few of the samples the principal ash constituents were deter- 
mined and are given in the following table: 
PLAT. 
Ash. 
Phosphoric 
acid. 
P 2 O t . 
Potas h. 
K 2 0. 
Soda. 
Na 2 O. 
Lime. 
Ca 0. 
Magnesia 
Mg O. 
I 
6.10 
3.73 
16.60 
16.76 
27.28 
4.16 
II 
6.32 
2.92 
18.24 
5.64 
33.44 
4.29 
Ill 
6.71 
6.08 
16.64 
10.64 
36.40 
5.16 
IV 
6.73, 
5.57 
28.03 
7.56 
25.20 
3.50 
V 
6.79 
4.96 
19.40 
3.28 
29.44 
3.28 
Ash Constituents Calculated in Dry Substance of Hay. 
The results can best be compared if the ash elements be calculated 
upon the hay itself, thus enabling us to trace real differences, which 
may not exist in the ash composition itself. 
PLAT. 
Phos- 
phoric 
acid. 
°2 P 5. 
Potash. 
K 2 0. 
Soda. 
Na 2 0. 
Lime. 
CaO. 
Magne- 
sia. 
Mg O. 
Nitrogen. 
1 
I 
227 
1.013 
1.022 
1.664 
.254 
2.23 
II 
.184 
1.153 
.356 
2.113 
.271 
2.09 
III 
.408 
1.116 
.714 
2.342 
.346 
2.32 
IV 
.375 
1.886 
.509 
1.696 
.235 
2.42 
V 
.337 
1.317 
.233 
1.999 
.233 
2.33 
Timothy. 
June 29, the samples of timothy were taken for analysis, and the 
data from the results are given in the following table : 
