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Journal of Agricultural Research 
Vol. XXV, No. 7 
(4) The use of hydrated Na 2 0 2 for the absorption of H 2 S has a twofold 
advantage. The alkalinity of the solution acts as a binding agent while 
the 20 per cent of available 0 acts in the capacity of a powerful oxidizer. 
LITERATURE CITED 
(1) Averitt, S. D. 
1916. SEPARATION AND ESTIMATION OP POLYSULFIDES AND THIOSULFATE IN 
lime-sulfur solutions. In Jour. Indus, and Engin. Chem., v. 8, 
p. 623-627. Bibliographical footnotes. 
(2) Avery, S. 
1905. THE DETERMINATION OF LIME AND SULPHUR IN SOLUTIONS OF SULPHIDS 
or POLYSULPHiDS used as insecticides'. In U. S. Dept. Agr. Bur. 
Chem. Bui. 90, p. 104-105. 
(3) Chapin, Robert M. 
1916. SOME NEW METHODS FOR THE ANALYSIS OF LIME-SULFUR SOLUTIONS. In 
Jour. Indus, and Engin. Chem., v. 8, p. 151-156. Bibliographical 
footnotes. 
< 4 ) - 
1916. NEW METHODS FOR THE ANALYSIS OF LIME-SULFUR SOLUTIONS. II. THE 
estimation of “poly-sulfur. ” In Jour. Indus, and Engin. Chem., 
v. 8, p. 339-341. Bibliographical footnotes. 
(5) Harris, James E. 
1911. lime-sulfur spray. Mich. Agr. Exp. Sta. Tech. Bui. 6 , 15 p. 
(6) Haywood, J. K. 
1905. composition of the lime, sulphur and salt wash. In Jour. Amer. 
Chem. Soc., v. 27, p. 244-255. 
<7) — 
1907. the lime-sulphur-salt wash and its substitutes. U. S. Dept. Agr. 
Bur. Chem. Bui. 101, 29 p. 
(8) Tartar, H. V., and Bradley, C. E. 
1910. on the composition of lime-sulfur spray. In Jour. Indus, and 
Engin. Chem., v. 2, p. 271-277. Bibliographical footnotes. 
{9) Thompson, Firman, and Whittier, A. C. 
1914. the composition of lime-sulfur solutions. Del. Agr. Exp. Sta. Bui. 
105, 30 p. 
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