454 Eeport of the Assistant Chemist of the 
zers for immediate effect. The timothy hay grown upon the unfertilized 
plat, XV, was richer in albuminoids and nitrogen free extract than was 
the average for the entire plats, although many of them were heavily 
fertilized. The greatest variation in the composition of the timothies, 
differently fertilized, is far less than the variation in the chemical 
composition of timothy for two successive years of growth upon the 
same plats, under like conditions and without fertilizers, so far as field 
culture furnishes this. We hope to be able to continue the experiment 
one year more, in order to study the after effect of fertilizers in such 
soils. 
Notwithstanding the failure of the experiment to show what it was 
planned to do, much information can be gathered from the results of 
the chemical examinations, which have been quite complete. 
The range in the digestibility of the albuminoids of the clover, from 
38 to 72 per cent, and for the timothy from 43 to 66 per cent, shows a 
greater variation than we had expected, but we cannot attribute this 
difference to the effect of fertilizers, for we find those plats intended 
to be duplicates showing differences little less than those differently 
treated. 
The sugars and starch of timothy constitute a considerable portion 
of the nitrogen free extract, while of clover the per cent of starch is 
less than one-half the amount in timothy, and the same is true of that 
portion determined as sucrose, and these constitute little more than a 
third of the nitrogen free extract. These variations are shown by the 
following: 
Red Clover. 
Invert 
sugar. 
Sucrose. 
Starch. 
Per cent of 
nitrogen 
free extract 
as sugars 
and starch. 
Minimum 
Maximum 
Average 
2.60 
5.60 
3.88 
.88 
4.40 
2.48 
5.58 
13.90 
9.38 
27.72 
43.88 
35.40 
Timothy. 
Minimum 
Maximum 
2.40 
5.00 
3.23 
4.68 
7.60 
6.21 
17.55 
22.61 
19.72 
46.40 
63.22 
55.69 
The application of potash to the soil did not increase the per cent of 
sugars and starch in our experiments with timothy and clover, nor can 
we trace any exact relation between the phosjmates and amount of 
albuminoids in the hays. 
