68 
Action and Practical Application of Bones 
animal matter which is in fresh ones, when it has been proved that that 
part is not equal to the other in relative value. 
8. That 2 bushels of bones per acre will actually produce as 
good results as 16 bushels of bones in their ordinary state in some 
cases; that 8 bushels of bones dissolved will greatly surpass 16 
bushels of bones in any other manner ; and that 4 or 6 bushels per 
acre is a fair quantity to apply in the state of solution — the results 
being greatly superior to those from fourfold the same quantity of 
bones applied in the usual manner, and the cost of the application 
less in proportion to the amount of effect produced (evidenced by 
the weight of the crop) than that of any other quantity. 
For results from 2 bushels of bones dissolved compare No. 10 (9 tons 
12 cwt.) and No. 17 (1 1 tons 15 cwt.) with the results of 16 bushels of 
crushed bones, No. 1, (10 tons 3 cwt.) 
For results from 8 bushels of bones dissolved compare Nos. 6 and 15 
with No. 1. 
Nos. 1 and 16 (each 4 bushels of dissolved bones per acre) give re- 
spectively — 
14 tons 6 cwt. 4 st. at a cost of 19*. &d. per acre. 
14 tons 11 cwt. 7 St. „ 20s. „ 
And No. 1 (crushed bones, 16 bushels per acre) — 
10 tons 3 cwt. 4 St. at a cost of 40*. Od. „ 
9. That either sulphuric or muriatic acid may be used with suc- 
cess in dissolving bones. 
Although a slight difference may be traced between the visible effects 
of the solutions made with different acids, the final results sliow no de- 
cided difference in favour of either. The cost and convenience is the 
criterion. 
10. That though one-half the weight of the bone is the projior- 
tion of acid that has been generally used hitherto, one-third 
of the weight of the bones to be applied per acre will answer ex- 
tremely well ; and that even one-fourth the weight of the bone 
may, if occasion demands it, be used with success. 
This is an important point in the economy of the manure, as it affects 
the cost materially. That our conclusion is warranted see the following 
results : — 
No. 6. — 8 bush, bones (24 st.) and 12 st. of acid cost \l. 195. 6</., and 
gave 16 tons 1 cwt. 3st. per acre. 
11. — Ditto (24 St.) and 8st. of acid cost 1/. 13*., and gave 15 tons 
2 cwt. 5 St. per acre. 
12. — Ditto (24 St.) and 6 st. of acid cost 1 /. 9*. 9^/., and gave 13 tons 
15 cwt. 7 St. per acre. 
While No. 1,16 bushels of lioncs in an ordinary state cost 21., and gave 
10 tons 3 cwt. 4 st. per acre. 
11. That though the bones have usually been ml.xod in water 
to the amount of 100 times the weight of the acid, one-half that 
