Report of Experiments on the Growth of Wheat. Ill 
and the degree of humidity of the air was, in June and August 
slightly above, and in July and September slightly below the 
average. 
With such prevalence of cold and wet weather during the 
growing and ripening period, the wheat-crop of 1848 was re- 
ported to be very deficient both in quantity and quality. 
The manuring in the experimental field was generally heavier 
than in the preceding year. Salts of potass, soda, and magnesia, 
were again employed on many plots ; the amounts of superphos- 
phate of lime, and also of ammonia-salts, were generally larger ; 
and the more highly nitrogenised rape-cake was employed instead 
of rice. The following is a summary of the results obtained 
under the above conditions of season and manuring : — 
Table V. — Summary of the Eesults of the Fifth Season, 1847-8. 
Manures. 
(Quantities per Acre.) 
Produce tek Acre, &c. 
Dressed Com. 
Total 
Corn. 
Straw 
and 
Chaff. 
Quantitj - . 
Weight 
per 
Bushel. 
Mineral Manure alone ; mean of 4 experiments) 
(Plots 0, 8a, 86, and 9a) J 
300 lbs. Ammonia-salts (equal parts Sulphate) 
300 lbs. Ammonia-salts (equal parts Sulphate) 
and Muriate), and Mineral Manure ; mean of > 
4 experiments (Plots 96, 106, 18a, and 186) ..) 
400 lbs. Ammonia-salts (equal parts Sulphate) 
and Muriate), and Mineral Manure ; mean off 
8 experiments (Plots 6a, 66, 116, 126, 136, 146,1 
500 lbs. Ammonia-salts (equal parts Sulphate) 
and Muriate), and Mineral Manure (Plot 5a) | 
300 lbs. Ammonia-salts (equal parts Sulphate) 
and Muriate), Mineral Manure, and 500 lbs. 1 
Rape-cake ; mean of 8 experiments (Plots 7a, [ 
76, 11a, 12a, 13a, 14a, 16a, and 166) .. ..J 
400 lbs. Ammonia-salts (equal parts Sulphate) 
and Muriate), Mineral Manure, and 500 lbs. 1 
Bush. Pks. 
14 3 
25 2f 
19 Of 
19 1 
25 3i 
26 1|< 
1 29 3i 
29 23 
! 30 3J 
lbs. 
57- 3 
58- 2 
57'7 
58'1 
58*7 
58- 6 
' 59-2 
59- 1 
59-1 
lbs. 
952 
1705 
1243 
1334 
1703 
1763 
1991 
1941 
1932 
lbs. 
1712 
3041 
2121 
2367 
2959 
3027 
3266 
3276 
3533 
With such unfavourable characters of season, the produce in 
the experimental field agreed with that of the wheat-crop of 
the country generally in being inferior both in quantity and 
quality. Although the manuring, both mineral and nitro- 
genous, was generally heavier than in 1847, or, indeed, than in 
any preceding season, the amount of produce was considerably 
less than in either 1847 or 1846, and the weight per bushel of 
