Experimental Plots at Rothamsted, from 1864 to 1883. 409 
March was 9 J degrees above the average, and the 21st was 
12 degrees below it. October, ISovember, and December, were 
dry months, while in January and March the rainfall was in 
excess. April was a warm month. All the month of May and 
the first half of June were cold, the remainder of June was 
warm. The rainfall was below the average in April and June, 
but rather above it in May. The first week in July was 
excessively hot ; this was followed by ten days of cold weather, 
after which came eleven days of very great heat. August was 
cold and wet, while the rainfall in July was slightly below the 
average. In August and September frequent and heavy rains, 
and thunder-storms, interrupted harvest operations. 
Table IX. — Summary of the Eesults of the Twentt-xixth Season, 
1871-72. 
Produce per Acre, &c. 
Mamues. 
(Quantities per Acre.) 
Dressed Corn. 
Quantity. 
Unmanured 
14 tons farmyard-manure 
400 lbs. ammonium-salts alone = 86 lbs. N. 
550 lbs. nitrate of soda alone = 86 Ids. N. 
Mixed mineral manure alone 
Mixe<l mineral manure, and } 
200 lbs. ammonium-salts = 43 lbs. N. . . / 
Mixed mineral manure, and \ 
400 lbs. ammonium-salts = 86 lbs. N. . . J 
Mixed mineral manure, and \ 
550 lbs. nitrate of soda = 86 lbs. N, . . / 
Mixed mineral manure, and "I 
600 lbs. ammonium-salts = 129 lbs. N. . . / 
bush.pks. 
10 2| 
32 
18 
23 
12 
20 
29 
40 
35 
Weight 
per 
Bushel. 
V 
^2 
I 
2 I 
2| 
I 
2f 
I 
21 
Estimated average for the United KingdomV 
reckoned at 61 lbs. per bushel / 
lbs. 
59- 0 
60- 7 
56-8 
55-5 
60-0 
60-2 
60-2 
60-0 
60-5 
24 0 , 61-0 
Total 
Corn. 
lbs. 
705 
2046 
1178 
1434 
835 
1304 
1937 
2565 
2324 
Straw 
and 
Chaff. 
lbs. 
1152 
3761 
2442 
3210 
1331 
2567 
3827 
6527 
5071 
The season of 1872 was much more favourable for artificial 
manures than the season of 1871, their produce having in one 
instance reached 40 bushels per acre ; while the weight per 
bushel over the whole field was very much higher than in 1871 : 
the yield of the crop of the country, however, was estimated to 
be considerably below an average. 
Tliirtieth Season, 1872-73. 
October was cold until the 25th, a warm period then set in 
which lasted until the 9th of November, when the weather 
again became cold. The first part of December was cold, the 
2 E 2 
