272 Experiments with Salt aud other Manures 
The remainfler of the field was a very excellent crop. The 
lands guanoed were, however, decidedly superior in every case to 
the rape-dust. On one marly hill, where there is scarcely an 
inch of soil, (the whole being formed of shelly limestone and 
chalky marl mixed.) and from which the turnips (grown with 
bones only) had been carted away, it was surprising to see the 
effect of the guano. The place where every handful had fallen 
was particularly marked, and the whole crop (where scarcely ever 
a crop, under more favourable circumstances, grew well before) 
was good. At this time an extensive dealer in rape-dust and 
bones went over the field with me, and gave, without hesitation, 
his opinion that the guano beat the rape-dust throughout the field 
by a quarter per acre. This gentleman, Mr. RolDert Snowdon, 
was the very person who had supplied the rape-dust used in the 
experiment; his testimony, therefore, was decidedly free from 
prejudice in favour of guano. 
As a curiosity, I send a sample of the soil from the marly hill 
alluded to, where, by the aid of guano, a crop of barley, of full 
4 quarters per acre, was produced after turnips pulled off the 
land. ( Vide " Extra Sample of Soil," marked " K.") 
At reaping time, certain peculiarities were observable. No. 1, 
thin and short in the straw, was ripe first. No. 7, (salt,) though 
backward at the time the top-dressings were applied, was ripe 
sooner than any other, except No. 1. The straw was white and 
brittle. No. 4 partook of these peculiarities in a less degree. 
Nos. 5 and 6 (nitrated) were ripe last, having been at the time 
of top-dressing a full week behind Nos. 2 and 3. The straw 
of these portions was very yellow and coarse, appearing as 
though it had been forced to a quick vegetation. The straw 
of the patches 2 and 3 (rape-dust and guano) was yellow and 
soft. AH the plots, with the exception of No. 1, which was 
too light to break down, were lodged so much, that they were 
very difficult to mow. Nos. 7 and 4 were less lodged than the 
others. 
The whole of the field was mown, August 30, and the produce 
of the various patches kept separate, when, after being well 
weathered, the following were the results obtained from each 
plot : — 
1. gave 20C sheaves, yield. 5S7 lbs. of straw, & 4'21 lbs. of grain, weigh. 5'lflbs. p. busli. 
2. 
do. 212 
do. 
'do. 
641 
do. 
196 
do. 
do. 
54i 
do. 
3. 
do. 2.'}.^ 
do. 
do. • 
78.5 
do. 
625 
do. 
do. 
54 
do. 
d. 
do. 206 
do. 
do. 
73S 
do. 
622 
do. 
do. 
55 
do. 
5. 
do. 219 
do. 
do. 
730 
do. 
603 
do. 
do. 
53i 
do. 
6. 
do. 201 
do. 
do. 
695 
do. 
579 
do. 
do. 
54X 
55| 
do. 
7. 
do. 187 
do. 
do. 
607 
do. 
554 
do. 
do. 
do. 
