154 
Superphosphate of Lime. 
dung, and the swedes proved the best on his farm. The amount 
of vitriolized bones used per acre varied in different parts of the 
field, and the goodness of the crop precisely corresponded to the 
quantity apjilied. 
Mr. J. Blundell of Bursledon also used it at the rate of 4 bushels 
of bones to the acre, with 6 bushels of ashes in competition with 
night-soil and ashes. On visiting his farm a few weeks after- 
wards I noticed at several fields' distance the superiority of one 
portion of the field, which I found was that on which the vitriol- 
ized bones had been used. The dampness of the season, how- 
ever, proved so favourable to the development of the other 
manure, that on weighing them in December, the latter was 
found about half a ton per acre heavier ; the expense, however, 
was nearly double. The weight of the crop was between 1 7 and 
18 tons per acre. I have no doubt that if Mr. B. had applied 
20 bushels of ashes to the acre, instead of 6, with the sulphated 
bones, the result would have been much more favourable. When 
we bear in mind the large amount of potash contained in the 
crop, it must be very evident that it is of importance to supply a 
good quantity of ashes which contain a fair proportion of potash ; 
I would therefore recommend that 20 bushels of ashes per acre, 
at least, should always be employed. 
Mr. Pocock of Hickley used the manure at the rate of 4 
bushels per acre, and one third acid, and was well pleased with 
the result, though he did not ascertain its amount. 
Mr. Withers of Luzborough was another farmer to whom I fur- 
nished a quantity, prepared as before mentioned, and he reports 
very favourably of the results. 
Mr. Fielder of Sparsholt was induced by my representation of 
its favourable effects to try the manure, and he found that on his 
light land on the chalk it answered admirably. Two bushels of 
vitriolized bones with ashes successfully rivalled a small portion 
of ground drilled at the rate of 60 bushels of bones to the acre 
for the purpose of experiment. 
Although the vitriolized bone has proved very successful with 
white turnips, I believe that its peculiar excellences are most 
luUy proved by swedes. 1 wished to ascertain this by experi- 
ment, and accordingly on the same day and on similar land, a 
clay loam, 3 acres were drilled with Laing swedes, and 3 acres 
with Matson's white globes after tares. The swedes proved de- 
cidedly superior both in the early and later stages, and though 
the roots, as might have been anticipated, were but of moderate 
size, in consequence of the very late time of drilling (carlv in 
August), yet on comparing a few rods without manure the differ- , 
ence was very striking. A small portion of the globes, drilled 
with ashes ah)ne, also exhibited a similar inferiority. 
