212 
holding about pecks was first filled with apples from the lowest branches 
of one of the trees. Next a similar basketful was picked from the 
branches that were just the height one could conveniently reach, taking- 
care to pass clear around the tree in both cases. After this a basket 
of one-half a bushel was filled from the tallest branches of the tree. 
The apples were then poured upon an assorting table ; and the baskets 
filled and emptied again in the same manner and from the same tree, 
after which the contents of the six basketfuls were assorted into three 
qualities as in the preceding case. 
The results in both cases are embodied in the following table: 
Professor Goff’s experiments. 
Professor Taft’s experiments. 
Applications. 
Free from scab. 
* 
JS -= 
- " 
SQ • 
Badly scabby. 
Cost per tree. 
Applications. 
Free from scab. 
i 
Slightly 
scabby. 
Badly scabby. 
6 
0 
M 
P-l 
rfl 
O 
r 'v 
Total yield. 
Per 
Per 
Per 
Per 
Per 
Per 
cent. 
C6tct. 
cent. 
Cls. 
cent. 
cent. 
cent. 
Cts. 
Pounds. 
Potassium sulphide. 
7 
30.04 
48.55 
21.41 
37 
7 
25.5 
74.3 
t 2 
39 
3.61SJ 
Sodium hyposulphite.... 
7 
43. 24 
42. 78 
13. 98 
29 
<7 
i 
23. G 
75.4 
.89 
23 
1,648 
Sulphur powder. 
7 
32. 72 
54.31 
12. 97 
31 
6 
17.6 
81.2 
1.1 
31 
1.435J 
Ami copper carbonate .. 
7 ' 
75. 02 
23. 35 
1.63 
38 
7 
51.2 
48.6 
. 16 
49 
2, U2| 
Eau celeste. 
7 
68. 8 
31. 0 
. 2 
60 
Sulphur solution. 
3 
42. 9 
48. 99 
8.11 
TTnsprayed.. 
23. 34 
53. 89 
22. 71 
12. 5 
85. 7 
1. 8 
769A 
It will be seen that at both places there is a very decided showing in 
favor of the copper solutions. Professor Golf did not try the eau celeste, 
and this produced the best results for Professor Taft, giving 68.8 per 
cent, entirely free from scab. One of the trees produced 88 per cent, 
free from scab, the other was heavily loaded and gave 59 per cent. 
The two sets of results agree as to the main point but show some strik¬ 
ing differences. It is probable that these are partly owing to differ¬ 
ent localities, varieties treated, and varying conditions of weather, and 
very likely in greatmeasure to different ideas of the two experimenters 
as regards the three classes into which the apples were assorted. In 
many cases it would be a question as to which of two classes an apple 
should belong. 
By comparing the two tables it is evident that the badly scabby 
apples were more numerous in Mr. Hatch’s orchard, while those of the 
second quality preponderated on the college farm. 
Professor Goff* obtained the best results with the ammoniacal copper 
carbonate solution, thereby keeping 75.02 per cent, free from scab against 
51.2 per cent, by Professor Taft. There is, however, about the same 
per cent, of badly scabby apples in both cases. Professor Goff’s results 
with this are even better than Professor Taft’s with eau celeste, except 
that the badly scabby apples were over 1 per cent, greater with the 
