486 
Tlie Trials of Hireshing Macliines at Boncasier. 
samples of grain examined, but the straw, as it came from the 
machine, was carefully scrutinised to see to what extent it was 
broken. The cavings also underwent frequent examination with 
reference to grain passed over with them. 
The corn in the sheaf was, as already stated, weighed on its 
way to the machine, whilst any corn not used within the specified 
time was weighed back, and the net weight thus obtained was 
taken. The various samples of corn delivered by the machine 
were weighed separately, as was also any grain recovered from 
re-threshing. During the whole of the trial the dynamometer was 
keeping its record of the power used, and afterwards the machine 
was run idle and the power taken in that condition was ascer- 
tained. From these various observations the accompanying 
tables have been compiled by the Society's Engineers. 
Table I. (page 488) gives in a tabular form a brief description 
of the various machines. 
Table II. (page 489) gives a record of the observations taken 
during the official trial runs, together with the deductions made 
from them. 
Fader s MacJdne. — Messrs. Foster were the first to start, and 
having got through their preliminary trial, they at once pro- 
ceeded to their hour's run of wheat. The total wheat in sheaf 
served on to the machine was 6,826 lb., and this was threshed 
without any interruption during the run ; the products in grain 
were 2,061 lb. of firsts, 100 lb. of seconds, and 17 lb. of thirds. 
On re-threshing the straw and cavings, 24-5 lb. of grain were 
recovered. The horse-power expended was 9'0] . 
Following on with their barley trial of an hour, 5,472 lb. 
of corn in the sheaf were served out, and the products in grain 
were 2,544-5 lb. of firsts, 138'5 lb. of seconds, 18'251b. of thirds, 
and on re-threshing 36'75 lb. were recovered. During this run 
a slight interruption occurred owing to the fly-wheel of the 
engine getting loose ; but as this was in no wise connected 
with the working of the machine, the full 8^ minutes stoppage 
was allowed. The horse-power measured was 8'4. * 
The trial with oats followed, in winch 3,708 lb. of sheaf corn 
were served out, and the products were 1,501 lb. of firsts, 3 i -25 lb. 
of seconds, 11*75 lb. of thirds, and 9 lb. recovered by re-thresh- 
ing. The horse-power was 9-5. The power taken by the machine 
running idle was 4-53 h.p. 
The first trial in wheat having been made from the upper 
portion of the rick, a second run of an liour witli this machine 
was made in wheat on June 19, with the following result : corn 
in sheaf served out, 5,125 lb. ; products, 1,982-75 lb. of firsts, 
r)8-3o lb. of seconds. 9-5 lb. of thirds. In this trial there was no 
