cent., to facilitate their comparison with our Colorado sam- 
ples, are as follows : 
Cutting. 1 
Year 
Collected. 
Source of Sample. 
Number 
of Samples, j 
Moisture. 
1 i 
< 
Ether 
Extract. 
'S 
? 
a 
- 
Crude 
Fiber. 
Nitrogen- 
1 free Extract. 
1 
18J4 
Laboratory .samples 
n 
1 
i 6.21 
10.03 
1.55 
14.85 
36.28 
31.08 
1 
1894 
Farm department 
3 
7.. 59 
11.19 
-3.59 
14.92 
28.10 
34.61 
1 
1895 
Laboratory samples 
4 
6.49 
10.61 
1.50 
15.13 
34.03 
32.24 
1 
189t) 
Laboratory samples 
3 
7.17 
10.76 
1..57 
15.12 
34.73 
30.65 
1 
1896 (?) 
Utah t 
3 
7.. 50 
•9.78 
2.59 
14.29 
28.41 
37.43 
Average 
22 
6.99 
iO.47 
1.80 
14.86 
32.31 
33.57 
2 
1894 
Laboratory samples 
5 
5.94 
10 24 
1.41 
14.43 
34.15 
33.73 
2 
1894 
Farm department 
3 
8.05 
10.48 
1.53 
13.99 
31.97 
33.98 
2 
18% 
Laboratory samples 
3 
7.49 
11.32 
1.66 
17.08 
26.28 
35.25 
2 
1896 (?) 
Utah 
3 
7 . 50 
8.78 
2.13 
15.23 
31.18 
35.28 
Average 
14 
7.24 
10.21 
1.68 
15.18 
30.90 
34 79 
3 
1894 
Laboratory samples 
2 
5.93 
9.83 
1.46 
13.01 
37.01 
32.74 
3 
1894 
Farm department 
5.63 
10.07 
1.43 
13.47 
33.70 
35.70 
3 
1896 
Laboratory samples 
3 
8.14 
11.32 
1.69 
15.88 
28.34 
34.62 
3 
189»5(?) 
Utah 
3 
7.50 
8.58 
1.73 
11.95 
32.79 
37.45 
Average 
11 
6.80 
9.95 
1.58 
13.81 
1 
32.98 
34.90 
" Not included in the average. 
t Taken from Knlletin No. 4K, Utah Expt. Sta., and recalculated to a basis of 7.5 per cent, 
moisture. 
We see from the preceding table that, for the first cut- 
ting, representing three years and four soils, the composi- 
tion is practically constant, the greatest variation being in 
the percentage of crude fiber. This difference, however, is 
no greater than may be found in different samples collected 
from the same field on the same date. The results for the. 
second cuttings are not so uniform, and I think that we have 
here exhibited the maximum variation, which may reason- 
ably be attributed to differences in the seasons, amounting 
to three per cent, for the protein, and eight per cent, for 
the crude fiber. 
The averages for the third cuttings show the same irreg- 
ularities that are observed in the second cuttings. My sam- 
ples for the season for 1896 are consonant with the general 
