Field Experiments on Swedish Turnips. 
97 
On each quarter-acre plot there were 30 rows, 22 inches from 
row to row. 
The seed was sown on the 24th of May, and on tlio 7th of 
June, when I inspected the fiekl, it had come up sufficiently 
well on all the plots to show the rows in the field. 
On the 18th of June, the plants on the unmanured plots were 
decidedly behind the others, and on the Gth of July the dif- 
ference in the growth of the seedling swedes was still more 
marked on the unmanured plots. 
On the chalk plots the swedes were a little more forward than 
on the unmanured plots, but not much. 
The swedes on the two plots manured with dissolved copro- 
lites were decidedly in advance of those grown on the plots 
manured with ground coprolites. 
Similar differences were noticeable on the plots manured with 
raw and dissolved bone-meal. 
The swedes dressed with precipitated phosphates looked quite as 
well, if not better than, those manured with dissolved coprolites. 
As far as appearances went, the swedes manured with guano and 
superphosphate showed best in the field on the Gth of July ; 
next followed those on the precipitated phosphate plots, then 
the dissolved coprolite plots, next dung and dissolved copro- 
lites ; then the Redonda phosphate, followed by the dung and 
raw coprolite plots. Next in order were the plots manured 
with the large dressing of dung, and last stood the bone-meal 
and the ground coprolite plots, which were about equal. 
On the 24:th of July I took the following notes in the 
field :— 
The swedes had made great progress on all the experimental 
plots. On all, the plant was very regular. 
The unmanured plots were much behind the others, but the 
swedes looked healthy and growing. 
The plots manured with chalk were scarcely better than the 
unmanured swedes. 
The most forward plots were those manured with dissolved 
coprolites and Peruvian guano, and the plots manured with 
dung and superphosphate. 
The roots manured with dissolved coprolites, on the 24th of 
July, were plainly more advanced than those manured with 
ground undissolved coprolites. 
Redonda phosphate appeared about equal in its effect with 
ground coprolites. 
The precipitated phosphate and dissolved coprolites showed 
no marked difference on the 24th of July. 
The raw bone-meal plots were behind the dissolved bone- 
meal and dissolved coprolite plots. 
VOL. XVII. — S. S. H 
