110 Report of Experiments on the Growth of Wheat. 
Although the wheat-crop of 1847 was reported to be generally 
above the average, both as to yield per acre and quality, there 
was here, except in the case of the farmyard manure, not quite 
so much corn for a given amount of manure applied, nor was 
the weight per bushel so high, as in the preceding year. The 
amount of straw was, on the other hand, much greater ; though, 
neither was it, nor that of the corn, equal to the average of the 
years of experiment. The quality of the grain, as indicated by 
the weight per bushel, was, however, considerably above the 
average. 
By farmyard manure there was an increase over the unmanured 
produce of 13 bushels of corn, and 1726 lbs. of straw ; and there 
was very nearly the same amount by 300 lbs. of ammonia-salts 
together with superphosphate of lime. Without the superphos- 
phate of lime the ammonia-salts show a deficiency of nearly 
4 bushels of dressed corn, and of 581 lbs. of straw. 400 lbs. of 
ammonia-salts with superphosphate of lime gave 33 bushels of 
dressed corn per acre, or an increase over the unmanured produce 
of about 16 bushels, and over that by farmyard manure of rather 
over 3 bushels of corn and of 363 lbs. of straw. By the substi- 
tution of 100 lbs. of ammonia-salts by 500 lbs. of rice, the quantity 
of both corn and straw was somewhat reduced ; and by the use 
of 1 ton of rice alone, the total increase obtained was little more 
than one-third the weight of the manure employed. 
Here again, then, in the fourth season, ammonia-salts alone 
gave a very considerable amount of increase, and when used in 
conjunction with superphosphate of lime the largest produce of 
the season was obtained. 
Fifth Season, 1847-8. 
November, December, January, and February of the winter of 
1847-8 were, upon the whole, fine and mild, though there was 
some excessively cold weather, with dry piercing winds, sharp 
frosts, and snow towards the end of January and beginning of 
February, and during the remainder of the latter month a great 
deal of rain, but with comparatively high temperature. March 
and April were very wet and cold, excepting at the end of the 
former and the beginning of the latter month, when the weather 
was finer and warmer. May Avas genial, with little rain. June 
and July were unseasonably wet, variable as to temperature, 
with a good deal of cool, and but little hot weather. August 
also was unsettled, generally cold, and extremely wet. September 
was variable with some fine and hot days, but a good deal of 
wind and low temperature, and towards the end a good deal of 
rain. In [ June, jJuly, August, and September, the dew-point 
ranged rather below the average, more particularly in August ; 
