ttepart on the Expeyiments ivith " BoiiiUie Bordelaise." 83j) 
Experiments were made at Kent and Bedford with mixtures of 
diflerent strengths and applied in different quantities to the plots. 
All the plots treated had the mixture applied twice, and both 
applications were made before any disease appeared. 
This table shows that the efficient drenching of the foliage 
secured by applying 80 gallons of a weak mixture to the acre 
is of more advantage to the plant than 40 gallons of a stronger 
solution, and the advantage of a thorough application is furtlier 
confirmed by a comparison of the experiments in the same localities, 
1 shown in Table I. The three applications of 100 gallons per acre 
of the ordinary strength secured in Kent a crop of 12 tons 12 cwt. 
as against 11 tons 16 cwt. in this experiment, and in Bedford 8 tons 
18 cwt. as against 8 tons 4 cwt. These experiments teach that 
whenever the mixture is applied it must be thoroughly done. 
An experiment was made at Bedfoi'd with a mixture in which 
the same quantity of sulphate of iron was employed instead of sul- 
phate of copper, the other ingredients being in the same proportions 
as in the Bouillie Bordelaise. 
Table IV. — Sulphate of Iron. 
station 
Plot 
_ 
A 
B 
C 
Disea-sed Tubers 
per acre 
Sound Tubers per acre 
Actual 
weiglit 
Per 
cent. 
101 
13-2 
10-5 
Actual 
weiglit 
t. C. (1.11). 
7 IS 3 V2 
7 4 14 
7 2 0 0 
fiaiii of 
dressing 
t. c. q. lb. 
0 IG i 12 
0 2 14 
Value of 
gain 
Total 
cost of 
treat- 
ment 
Net 
gain 
Net 
loss 
ivelly soil \ 
■ietg," Daniers" \ 
t. c. q. lb. 
0 1« 0 0 
12 0 0 
0 IG 2 24 
£ s. a. 
2 10 7 
0 C 10 
e s. (1. 
1 1 U 
0 7 0 
C s. d. 
1 1) 1 
£ s. d. 
O O 2 
O O 2 
snent each ( A. 201b. sulphate of iron, lOlb. lime, 100 gall, water. Dressed July 3 and 25, and Au<nist 
j of dressing 1 B. „ „ „ „ „ „ „ „ August 13. 
I C. Not treated. 
This treatment has not decreased the amount of disease, but 
plot A shows a somewhat larger crop. 
■ It having come to the knowledge of the officers of the Society 
( that Mr. J. F. Honeyball of Teynham, near Sittingbourne, Kent. 
; was making some experiments with the Bouillie Bordelaise, he was 
asked by Dr. Voelcker to supply the Committee with an account of 
the results, and in reply he sent in the following communication. 
His results generally confirm the conclusions drawn from tlie experi- 
ments carried out by the Society. 
Ilteport on E.vperiments by Mr. J. F. Honeyball, at Teynham, Kent. 
Having only in view tlie desire to satisfy myself as a potato grower of 
the value of the Bordeaux mixture, I was not careful to upplythe dressing to 
plots of equal size of each variety, but the results obtained are sufficiently 
I remarkable and instructive to ju.stify me in acceding to Dr. Voelcker's 
' request to furnish particulars for the use of the Committee. 
VOL. II. T. S. — 8 3 I 
11 
