Experiments mth Salt upon Mangolds. 
389 
salt probably will give a better result upon mangolds than a 
larger dose. 
The reader of this Paper will do well to compare the present 
results with those given in the last number of the Journal. 
He will be struck with the difference in the practical effect 
which salt had upon mangolds in the two sets of experiments. 
That salt is often injudiciously applied to the land can hardly 
be denied ; but, at the same time, its utility on light, sandy soils, 
I think, cannot be gainsaid. At all events, the preceding experi- 
ments appear to countenance this view, and to agree well with 
the experience of many intelligent light-land farmers. 
In all field experiments anomalies are frequently observable, 
which sometimes admit of a reasonable explanation ; more 
generally, however, the experimenter cannot explain why, in 
apparently similar instances, consistent results should not be 
produced ; he has, however, no choice but to record faithfully his 
results, and is not at liberty to reject those which do not accord 
with his anticipations. At the same time, it is very desirable 
to inquire into every particular which may or may not have an 
influence on the final result. 
I am, therefore, indebted to Mr. Kimber for the following 
particulars, which, I think, throw some light on the apparent 
anomaly which will be noticed in the preceding experiment, 
namely, that on the one side of No. 6 (left unsalted) common 
salt should have given a better result than on the other. 
The following table shows the number and weight of the 
blighted roots in each experimental plot of l-20th acre, and gives 
the average weight of blighted and sound roots. 
riots of 
& Acre - 
Salt applied 
per Acre. 
Number 
of Blighted 
Boots. 
Wciglit 
of Blighted 
Roots. 
Average Weight 
of Sound 
Roots. 
Average AVeight 
of Blighted 
Roots. 
cwts. 
cwts. 
lbs. 
cwts. 
lbs. 
cwts. 
lbs. 
No. 1 .. 
Nothing 
26 
0 
48 
2 
92 
1 
84 
>, 2 .. 
7 
29 
0 
80 
3 
60 
2 
•75 
,, 3 .. 
5 
69 
1 
65 
3 
70 
2 
56 
,, 4 .. 
3 
146 
2 
83 
3 
47 
2 
10 
5 .. 
1 
134 
2 
68 
2 
96 
1 
71 
,, C .. 
Nothing 
140 
2 
1 
2 
92 
1 
60 
7 .. 
2 
110 
1 
93 
° 
5 
1 
86 
,, 8 .. 
4 
133 
2 
65 
2 
59 
17 
9 .. 
6 
121 
o 
33 
3 
7 
2 
12 
, , 10 .. 
8 
130 
2 
96 
3 
50 
2 
46 
,,11 
9 
172 
3 
73 
3 
32 
2 
37 
It will be seen that the number of blighted roots was very 
much larger on Plot 11 than on any other ; and as the blighted 
roots weighed much less than an equal number of sound ones, 
