20 BULLETIN 1027, U, S. DEPARTMENT OF AGRICULTURE. 



Table 5. — Arsenic and lead remaining on sprayed peaches at picking time — Continued. 











Arsenic(As). 



Lead (Pb). 







ai) 



el 





Sam- 

 ple 

 No. 



Spray material used. 



Date 

 sprayed. 



Determi- 

 nations 

 made on. 







a 



HI 



■a 



03 

 Q) 



1-4 



Ut 



3 

 o 



"S-g 



'Sod 

 O 





"3 



MS 





m ID 



Soft 



> 













Mg 



per 











1915. 





Parts per million. 



peach. 



P.ct. 



Gr. 



23214 5 



78 lbs. hydrated lime, 



May g-'s 



Wholes. 



0.03 



0.20 



0.0 



0.0 



0.002 



0.0 



85.0 



52.1 





32 lbs. sulphur. 





Pulp. . . . 



.03 



.20 



.0 



.0 



.001 



.0 



85. 5 











Skin.... 



.06 



.36 



.0 



.0 



.001 



.0 



83.2 







Do 



Mav 26 























Do 



JulV 10 





















23215 5 



10 lbs. lead arsenate 



May 93 



Whole <. 



.12 



.70 



.40 



2.4 



.007 



.024 



83.4 



56.3 





(powder). 90 lbs. hy- 





Pulp.... 



.06 



.40 



.20 



1.2 



.003 



.009 



83.5 







drated lime. 





Skin 



.40 



2.40 



1.40 



8.2 



.004 



.015 



83.0 







Do 



May 26 





















232166 



8 lbs. sulphur, 3 ozs. 



May 9 3 



Whole * . 



.17 



1.10 



.40 



2.6 



.009 



.024 



84.9 



.54.6 





glue (used in water to 





Pulp.... 



'.05 



.30 



.20 



1.4 



.002 



.011 



85.3 







wet sulphur), 8 lbs. 





Skin.... 



.58 



3.50 



1.20 



7.3 



.007 



.013 



83.5 







hydrated lime, 1 lb. 

























lead arsenate (pow- 

























der), 50 galls, water. 

























Do 



May 26 























8 lbs. sulphur, 3 ozs. 



July 10 























glue (used in water to 

























wet sulphur), 8 lbs. 

























hydrated lime, 50 

























galls, water. 























234406 



Sprayed lightly with 2 



June 1 



Whole i . 



.18 



1.80 



.70 



6.9 



.017 



.062 



89.8 



95.0 





lbs. lead arsenate 





Pulp.... 



.04 



.40 



.20 



2.1 



.003 



.012 



90.4 







(com. paste), 2 lbs. 





Skin 



.72 



5.80 



2.50 



20.0 



.014 



.050 



87.5 







stone lime, 50 galls. 

























water. 

























2 lbs. lead arsenate 



June 19 























(com. paste), 50 galls. 

























self-boiled lime-sul- 

























phur (8-8-50). 

























Self-boiled lime-sulphur 



July 29 























(8-8-50). 























23441 6 



Same as.No. 23440, but 



Same as 



Wholes 



.36 



3.70 



.90 



9.2 



.032 



.077 



90.3 



89.3 





heavier applications. 



No. 23440 



Pulp.... 



.07 



.80 



.20 



2.1 



.005 



.014 



90.8 











Skin 



1.37 



11.80 



3.20 



27.6 



.027 



.063 



88.4 





23442 6 



4 lbs. lead arsenate 



June 1 



Wholes. 



.30 



2.90 



.80 



7.8 



.028 



.076 



89.7 



95.1 





(com. paste), 4 lbs. 





Pulp.... 



.06 



.60 



.20 



• 2.0 



.004 



.013 



90.1 







stone lime, 50 galls. 





Skin 



1.20 



10.30 



3.10 



26.5 



.024 



.063 



88.3 







water. 

























4 lbs. lead arsenate 



June 19 























(com. paste), self- 

























boiled lime-sulphur 

























(8-8-50). 

























Self-boiled lime-sulphur 



July 29 























(8-8-50). 























23J43« 



4 lbs. lead arsenate 



May 30 



Whole «. . 



.36 



3.10 



1.40 



12.0 



.040 



.155 



88.3 



110.9 





(powder). 96 lbs. hy- 





Pulp.... 



.08 



.70 



.20 



1.7 



.007 



.017 



88.5 







drated lime. 





Skin 



1.50 



11.90 



6.30 



50.0 



.033 



.138 



87.4 







4 lbs. lead arsenate 



June 19 























(powder), 32 lbs. sul- 

























phur (200-mesh fine). 

























64 lbs. hydrated hme. 

























32 lbs. sulphur (200- 



July 29 























mesh fine), 68 lbs. hy- 

























drated lime. 























134449 



8 lbs. lead arsenate, 



May 30 



Whole i . 



.67 



5.60 



2.00 



16.8 



.070 



.209 



88.1 



104.5 





(powder), 92 lbs. hy- 





Pulp.... 



.10 



.90 



.20 



1.8 



.008 



.017 



88.8 







drated lime. 





Skin 



2.90 



20.00 



9.00 



62.1 



.062 



.192 



85.5 







8 lbs. load arsenate 



June 19 























(powder >, 32 lbs. sul- 

























phur (20C^mcsh fine), 

























60 lbs. hydrated lime. 

























64 lbs. sulphur (200- 



July 29 























mesh fine), 36 lbs. 

























hydrated lime. 























■• As shucks fell. < Without stones. 



s Delaware variety, harvested Aug. 12-18, Springfield, W. Va. 



1 Elberta variety,"harvested Sept. 13, Benton Harbor, Mich. 



