Analyses of Ashes of Plants. 
GI9 
Produce and mineral matter of an acre : — 
Produce. Mineral Matter, 
cwts. lbs. 
Grain ... 13 20 . . 25 
Straw ... 12 <^ . . 54 
Chaff . . . i . . 35^5, 
Total , . 27 
Specimen Xo. '26. — Creeping Wheat. 
From Sir John Johiutone* 
[Soily a mixture of clay and sand ; geological formation, Kelloway's 
rock. After seeds. The wheat manured with oO stone (fi{ cwts.) 
of guano per acre ; drilled ; appearance of the crop tiiin and even, and 
free from smut; ^»a^^erf August 7th. f Estimated yield 30 bushels 
an acre (the general yield of the tield, 6 acres, being about 28 bushels ; 
the straw was rather more where the guano was applied) ; straw very 
weak ; grain good quality, 62 lbs. to the bushel.] 
Average length of the straw . . 44 incher. 
Per Centage. Graia as lOOn. 
40-79 . . IrtOO 
51-9n.n . . 12721, ,., 
Relation of grain, straw, atid chafiF : — 
Actur-l Quantities. 
Grain ... 7713 
Sfraw . . . D830 
Chaff . . . 136 j 
Total . . 1S909 100-00 
2451 
Specific gravity of the grain 
Per centage of water and ash : — 
Water. 
Grain . . . U-jO 
Sin* . . .11-00 . . 
Chaff . . .11-00 . . 
. 1 ■ 30.3 
, , Ash caleulatovl 
■ ' on dry substance. 
1-73 . . i-9o 
4-22 . . 4-74 
15-40 . . 17-^0 
Produce and mineral matter of an acre : — 
Produce. Mineral Matter, 
cwu. lbs. Um. 
Grain . . . Ifi OS . . 
Straw ... 21 Up . . 99Ta, 
Chaff ... 2 108^ . . 51^ 
Total . . 40 70^ 183,^5 
* From Wrench Green Farm, Hackness. 
-}• The portion selected for analysis was cut close off to the gToiiiul. Tlie rest of the 
field w.-w reaped at tiie same time. Our calculations of produce of straw are based on 
the former, and would therefore differ somewhat from the result of the reaping. 
VOL. VII. 2 T 
