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VI. — Report on the Field and Feeding Experiments conducted 
at Woburn, on helialf of the Royal Agricultural Society of 
England, during the Year 1879. By Dr. Augustus Voelckek,. 
F.R.S., Consulting Chemist to the Society. 
The Experiments on the Continuous Growth of 
Wheat. 
Before the experiments on the continuous growth of corn were 
instituted, a crop of wheat, yielding 25^ bushels of dressed corn 
and 20^ cwts. of straw, was grown by the late tenant in 1875. 
Since that time wheat has been grown every year, and thus the 
same land yielded in 1879 the fourth crop of wheat in suc- 
cession, or the third crop since the systematic experiments were 
begun. 
The mineral manures in the quantities given in the tabulated 
results on the following pages were sown on plot 8 and plot 9 
on the 8th of November, 1878, and on plots 4, 5, and 6, on the 
9th of November. 
The seed — Browick wheat — was drilled in on the 2nd of 
November, when the land was in excellent condition for the 
reception of the seed ; nevertheless, the plant only made its 
appearance above ground on the oOth of December, the wheat 
having been about two months in the ground before it got 
through the surface. 
The salts of ammonia and nitrate of soda were sown on the 
7th and 8th of March, 1879. 
The dung on plots 10 and 11 was applied on the 24th of 
January, 1879. 
In 1877 and 1878 the dung was applied to the land in a 
long and undecomposed condition, which had the effect of 
making the naturally very light soil of the experimental field 
still more loose. Moreover, it appeared to me that too much 
litter was used in the making of the dung. In order to remedy 
these defects the dung used in the wheat and barley experi- 
ments for 1879 was made in the Woburn feeding-boxes in 
the autumn of 1878, less litter than in the two preceding 
years being used, and it was cut into chaff instead of being 
used long as formerly. 
The requisite quantity of dung required for the experiments 
on the continuous growth of wheat and barley was produced by 
eight bullocks, four making dung for the wheat and four for 
the barley experiments. 
The bullocks were put into the feeding-boxes on the 8th of 
October, when their weight was as follows : — 
