398 
Trials of Artificial Manures. 
nication made by Sir William Heathcote, and published in our 
last number, of experiments instituted by him on the wheat crop 
of 1843 with different kinds of manure, in which I find that a 
mixture of 10 tons of dung and 25 bushels of Daniel's B manure 
yielded the greatest quantity of wheat, next to a mixture of dung 
and guano. The trial was made with nine different manures — 
dung and guano producing 35^ bushels, and dung and Daniel 
35 bushels per acre. And although Mr. Fowlie, Sir William 
Heathcote's bailiff, is not willing to admit that Daniel's manure 
was of any use in contributing to this growth, attributing the pro- 
duction to the use of the dung ; yet, where dung was applied 
alone, and precisely in the same quantities as was used by me, 
32^ bushels was the crop. Mr. Fowlie likewise states, " that 
although dung has in this instance been secondary, he was inclined 
to believe that this is entirely owing to the season, the wet May 
and June having caused the wheat to be too luxuriant;" whilst 
I, if tempted to make a remark upon the failure of dung in my 
experiment, should infallibly ascribe it to the dryness of the season 
and to the heating qualities of the dung still remaining in the soil, 
from the application of a large quantity. 
Of the efficiency of guano nothing need be said — this is but 
one of the very numerous instances in which its use has been 
proved most beneficial, and such as to justify the immense impor- 
tation now taking place for farming purposes. I had never, how- 
ever, previously tested its effects the second year : for its value I 
must refer to the concluding column of the table. 
The Swede turnips, which were all carried from the land, I have 
valued at IO5. a ton ; the wheat at what I sold it for, viz., 5«. 9rf. 
per bushel ; the tail at 4^. per bushel. I have set no value 
whatever on the straw. 
Believe me, 
Sincerely yours, 
W. Miles. 
Kingstveston, November \Zth, 1844. 
XXI. — Some Account of the Process of Warping. By 
Ralph Creyke. 
The public attention having been of late years more particularly 
called to improvements in agriculture, and the different methods 
of rendering waste lands cultivable, I think that perhaps a short 
description of imi)rovements, though of themselves of a local na- 
ture, and from circumstances not available out of a certain district, 
may be deemed acceptable to the public in general ; and I have 
been requested by some of my friends to give a short description, 
