460 
Bones and Sulphuric Acid as Manures. 
My own Experiments shew the following particulars : 
Manures and Qiiaatity. 
Application. 
o Bone-dust 
'3 
s 
S Bone-dust 
S. Sul. Acid 
o Water . 
16 bush. Drilled with seed 
Diluted with water, . 
equal to 50 times 
the weight of the 
acid, and applied 
in the furrow-ridge, 
plf-u-ihed up, and 1 
then seed drilled 
8 bush. 
168 lbs. 
604 lbs. 
1 Bone-dust . S bush, 
g" Mur. Acid . 168 lbs. 
2 Water . , 604 lbs. 
J Bone-dust . 8 bush, 
a burnt to half original 
•& weight , . . . , 
£• Sul. Acid . 8 J lbs. 
f Water . . 252 lbs. 
M No Manure ... I 
i Diluted and ap- 
I plied as above . 
Diluted and 
plied as above 
ap- 
Produce 
per Acre. 
Tons. cwt. lbs. 
15 3 4 
13 
Cost per 
Acre. 
13 
17 9 I i 1 15 0 
17 7 1 1 19 6 
1 6 0 
Pecidiarities. — The sulphuric acid plots " started off with the lead, 
which they continued to increase, being at hoeing-time full a week in 
advance of every other except the muriatic acid, which followed them 
up very closely. They almost touched each other on the ridges, 
while the plants on the plot with no manure could scarcely be seen." 
At hoeing-time " the most remarkable feature was the decided lead 
taken by the dissolved bones." In " September the plants on the 
dissolved bones appeared to stop growing in the top, and to form a 
quicker bulb than the other lots." 
October 12!h. The following notes were taken (vide Trans. High- 
land Soc, p. 177): ''^ Bones and Sulphuric Acid. Bulbs equal 
to lot 1st (there were twenty applications made in the experiment) — 
top small and light colour. Bones and 3Iuriatic Acid. Ditto, ditto, 
top a shade darker in colour. Bone-dust. Bulbs not so large. Burnt 
Bones and Sidphuric Acid. Not so good in appearance as they 
were a month since. (Vide Prize Report on Special Manures, Trans. 
High. Soc. March, 1844, vol. i., p. 178.) 
From these results the conclusion I then deduced was — 
" That bones dissolved in sulphuric or muriatic acid have an extra- 
ordinary beneficial effect on the turnip-crop, — hastening the early growth, 
encouraging the formation of the bulb in the early season, and increasing 
the gross produce." 
This conclusion the practice of the above authorities* confirms 
in every particular, and also shows that these advantages may be 
* Since this was written, the following trials by Mr. Gardiner have been 
published in his Report " on Special iManuies,"' to which the Royal High- 
land Agricultural Society awarded the second prize of 30/. 
[PoT.\TOE8, ■ 
