Analyses of Ashes of Plants. 
651 
Tlie following table exhibits the weight of straw and chaff in 
reference to grain, in 11 specimens of wheat from the farm of this 
College — all of them, except No. 3 and No. 8, being reaped. 
Table I. — Relation of Grain, Straw, and Chaff of \ \ Specimens 
of WJieat from the College Farm. 
Grain as 1000. 
No. of 
Lenjjth 
Weight 
Weight 
Weight of 
Speci- 
Variety of Specimen. 
Soil. 
of 
of 
of 
Straw and 
men. 
Straw. 
Straw. 
Chair. 
Chaff. 
Inches 
1 
Hopeton . , . 
Stonebrash and clay . 
36 
1107-2 
204-3 
1311-5 
S 
Hopetou . . , 
Stonebrasli . . 
38 
986-8 
206-1 
1192-9 
3 
April Wheat . . 
Stonebrash . . 
28 
99fi'8 
278-5 
1275-3 
4 
Spring Wheat . 
Calcareous clay . 
34 
962-9 
219-0 
1181-9 
S 
Bristol Red 
Brash and clay • 
38 
955'0 
216 0 
ini'o 
6 
Clover's Red . 
Stonebrash . • 
40 
9-8'l 
208 -4 
1186-5 
7 
Red-Chaff Dantzic . 
Brash and clay , 
38 
1013-2 
184-6 
1197-8 
8 
Piper's Thickset 
Ditto 
29 
928 0 
173-0 
1101-0 
9 
White Chair . 
Ditto 
36 
827-3 
154-7 
982-0 
10 
Hopeton . . • 
Ditto 
40 
1163-3 
194-3 
1355-0 
11 
Spalding; ... 
Stonebrash 
38 
988-5 
222-6 
1211-1 
With the exception of two specimens, we do not observe any very 
great dissimilarity in the numbers here given — we allude to April 
wheat (No. 3) and white-chaff wheat (No. 9). In the first, wliich 
is a bearded wheat, the chaff, including the awn, is necessarily high ; 
in the white-chaff wheat the straw and chaff' are both very low. 
In taking the mean of the 1 1 wheats, the deviation in these two 
specimens is of little importance, as it occurs in opposite senses, the 
one destroying the effect of the other. 
The mean weight referred to grain as 1000 is — 
For the straw . . . 991 -3 
„ chaff . . . 205-6 
Straw and chaff . 1196-9 
Mean length of the straw, 36 inches. 
We may next collect in a table the results of an estimation on 
five specimens of Hopeton wheat from Mr. Morton. 
Table II. — Relation of Grain, Straw, and Chaff in 
5 Specimens of Hopeton Wheat. 
Grain as 1000. 
No, ol 
Speci- 
men. 
Variety. 
Soil. 
length 
of 
Straw. 
Weight 
of 
Straw. 
Weight 
of 
Chaff. 
Weight of 
Straw and 
Chaff. 
Inches 
38 
Hopeton . . . 
Grittv silicious sand . 
38 
926-9 
148 3 
1075-2 
39 
Ditto . 
Stiff clay . 
43 
1009-0 
166-1 
1165-1 
40 
Ditto . 
Sandy . . 
42 
1066-0 
154-1 
1220. 
41 
Ditto . 
Clay 
45 
1246 0 
174-6 
1 120 ■ 6 
42 
Ditto . 
Silicious sand . . 
44 
1167-0 
185-3 
13.')2 3 
VOL. VII. 
