POISOXOUS METALS OX SPRAYED FRUITS AXD VEGETABLES. 21 
Table 5. — Arsenic and lead remaining on sprayed peaches at picking time— Continued. 
Arsenic(As). Lead (Pb). 
d 1 ~- 
Sam- 
ple Spray material used. 
No. 
Date Determi- 
snraved nations 
sprayea. jmadeon 
3 
© 
o 
1 
P-S 
"3 . 
'Sb'a 
1 r ied 
fruit. 
riginal 
fruit. 
'Z s 
*8 
as ® 
Soft 
CJ — 
> 
C 
—• c 
- 
< 
~ ^ 
< 
1 1915. | 
Parts per million. 
Mg. per 
peach . 
P.ct. 
Gr. 
23445 s 12 lbs. lead arsenate 
Mav 30 Whole * . 
0.80 
7.10 
2.60 
1 23.0 
0.091 
0.297 
88.7 
114. 3 
(powder), 8S lbs. hy- 
Pulp.... 
.07 
.60 
.20 
1.8 
.008 
.013 
89.0 
drated lime. 
Skin 
3.50 
27.80 
11.60 
92.1 
.085 
.2S4 
87.4 
12 lbs. lead arsenate 
June 19 
(powder), 88 lbs. sul- 
phur (200-mesh fine). 
100 lbs. sulphur (200- 
July 29 
mesh fine)~ 
23446 s 2 lbs. lead arsenate 
May 30 
Whole * . 
.42 
4.00 
1.10 
10.4 
.044 
.115 
89.4 
104.7 
(com. paste), 2 lbs. 
Pulp.... 
.10 
1.00 
.20 
2.0 
.OOS 
.016 
89.8 
stone lime, 50 galls. 
Skin 
1.50 
12.50 
4.10 
34.2 
.036 
.009 i J 
water. 
2 lbs. lead arsenate 
June 19 
(com. paste), self- 
boiled lime-sulphur 
(8-8-50). 
Self-boiled lime-sulphur . July 29 
(8-8-50). 
23447 s 68 lbs. terra alba, 
May 30 
Whole * . 
.20 
1.80 
.34 
3.0 
.020 
.034 
88.8 
100.5 
32 lbs. sulphur (200- 
Pulp.... 
.10 
.90 
.10 
.9 
.008 
.010 
89.1 
mesh fine). 
Skin.... 
.60 
4.90 
1.20 
9.8 
.012 
.024 
87.8 
Do 
June 19 
Do 
Julv 29 
23448 s 68 lbs. hydrated lime, 
May 30 
Whole*. 
.24 
2.30 
.60 
5. 7 
.026 
.065 
89.4 
107.5 
32 lbs. sulphur (200- 
Pulp.... 
.07 
.70 
.20 
1.9 
.006 
.020 
89.8 
mesh fine). 
Skin 
June 19 ! 
July 29 
1.10 
8.70 
2.50 
19.7 
.020 
.015 
87.3 
23449 s 10 lbs. lead arsenate 
May 30 Whole*. 
.94 
8.00 
2.40 
20.5 
.115 
.295 
88.3 
122.8 
(powder), 90 lbs. hy- 
Pulp.... 
.14 
1.20 
.20 
1.7 
.014 
.020 
88.5 
drated lime. 
Skin.... 
4.50 
35.40 
12.20 
96.1 
.101 
.275 
87.3 
23450 s 
Do 
June 19 
Whole * 
.23 
2.00 
.40 
3.4 
.026 
.046 
88.3 
Check nlat ( lmsnraved ) 
114.2 
1 Pulp.".; 
.10 
.90 
.14 
1.2 
.009 
.013 
88.5 
J Skin.... 
.77 
6.10 
1.50 
11.9 
.017 
.033 
87.4 
1916. ' 
25637 » Check plat (unsprayed). 
! Whole 4 . 
.04 
.30 
.40 
2.7 
.005 
.052 
85.1 
129.4 
j 
Pulp.... 
.01 
.10 
.30 
2.2 
.001 
. 031 
86.4 
Skin 
.20 
1.20 
.90 
5.3 
.004 
.021 
83.0 
25638' Self-boiled lime-sulphur 
A bout 
Whole * . 
.05 
.30 
.50 
3.4 
.005 
.045 
85.4 
90.9 
(8-8-50), 2 lbs. lead 
May 1 s 
Pulp.... 
.01 
.10 
.40 
2.9 
.001 
.02S 
S6.2 
arsenate. 
Skin 
.20 
1.10 
.90 
5.2 
.004 
.017 
82.6 
256397 2 lbs. lead arsenate, 50 
...do 
Whole * . 
.05 
.30 
.50 
3.5 
.005 
.051 
85.7 
102.3 
galls, water. 
Pulp.... 
.01 
.10 
.30 
2.1 
.001 
.025 
85.9 
Skin 
.20 
1.20 
1.30 
7. 7 
.004 
.026 
83.1 
1 5 lbs. ''soluble sulphur 
3 weeks 
compd.," 3 lbs. lime, 
later 
50 galls, water, 2 lbs. 
lead arsenate. 
4 lbs. ''soluble sulphur 
About 
compd.," 4 lbs. lime, 
July 15 
50 galls, water. 
25708 8 Check plat (unsprayed). 
Whole « . 
.06 
.40 
.40 
2.7 
.005 
.034 
85.3 
85.5 
Pulp 
.03 
.20 
.30 
2.2 
.002 ! 
.021 
86.4 
Skin 
.20 
1.20 
.90 
5.6 
.003 ! 
.013 
83.9 
25709' 1 lb. lead arsenate 
May 29- 
Whole « . 
.08 
.70 
.40 
3.7 
.00S 
.042 
89.1 
105.6 
(powder), 2 lbs. stone 
lime, 50 galls, water. 
May 30 
Pulp.... 
.03 
.30 
.30 
2.9 
.002 
.025 
89.5 
Skin .... 
.30 
2.20 
.90 
6.6 
. 006 
.017 
86.3 
1 lb. lead arsenate 
June 20- 
(powder), self-boiled 
June 21 
lime-sulphur (8-8-50). 
Self-boiled lime-sulphur 
Aug. 1- 
(8-8-50). 
Aug. 2 
3 As shucks fell. 
* Without stones. 
« Elberta variety, harvested Sept. 13, Benton Harbor, Mich. 
T Elberta variety, harvested Aug. 21, Springfield, W. Va. 
• Elberta variety, harvested Sept. 16, Benton Harbor, Mich. 
