Craicletj Mill Farm, Woburn, 1884-5, arid 1885-6. 505 
By these results it is shown that bullocks fed on sour grass 
silage of good quality will fatten well, though not quite so well 
as when fed on a mixture of roots and hay chaff". Taken in 
conjunction with last year's experiment, it would appear that 
upon the quality of the silage the matter of ultimate gain or 
loss depends ; but even under favourable circumstances a better 
result is got from roots and hay chaff. 
Second Experiment. — Sweet Silage v. Roots and Hay 
Chaff. 
(a) Notes on Silo 1. — The silage used in this experiment wa> 
that from Silo 1, filled as follows : — 
(oas. cwts. qrs. lbs. 
July 4—1 load 0 U 2 20 
„ 7— 1^ loads 1 15 2 12 
„ 10—1 load 1 2 3 19 ' 
Total .. 3 13 0 13 
During the time of filling the weather remained fine. The 
one load put in on July 4th was merely trodden lightly at the 
sides and not weighted at all that day ; the height was 2 ft. 6 in. 
It was settled, in order to ensure getting really sweet silage, to 
put in but small quantities of grass at a time, allowing the whole 
to attain a temperature of at least 122° F. before adding more. 
This is the point which Mr. George Fry, the well-known advocate 
of " sweet " silage, considers must be reached in order to get the 
desired result. On July 4th, after filling in the first load, the tem- 
peratures varied from 80° F. to 86° F. over different parts ; on 
the 5th inst., 100° F. to 11 2° F ; 6th inst., 106° F. to 110° F. ; and 
on the 7th inst., 130° F. to 135° F., throughout the entire mass. 
The top of the silage was completely soaked, the water having 
risen in vapour, and condensed on the cooler surface. At the 
same time the grass began to change its colour, assuming just 
below the surface a brownish colour. It thus took three days 
to reach the desired point ; immediately under the surface of 
the damp top layer the thermometer registered 122° F. On the 
7th, a fresh load and a half were added, making the height 
5 feet. This caused the temperature to fall rapidly ; on the 
8th, the readings were 74° F. to 78° F. only. After this the heat 
increased quickly, and on the 10th, 130° F. was again reached. 
Just below the surface the temperature was 140° F. to 150° F., 
and the grass was turning colour quickly. Another load was 
now put in and the height was 6 ft. 6 in. Again the heat was 
lowered and afterwards rose; on July 16th, when the silo was 
weighted, the temperature reached 145° F. to 154° F. in different 
VOL. XXII.— S. S. 2 L 
