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Sanders, W. A. 



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 Sayke, L. E. 



1913. Insecticides. In Trans. Kans. Acad. Sci., v. 25, p. 138-141. 



SCHEEIBEE, A. F. 



1915. [A voice crying from the wilderness.] In [The Horticulturist], 

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1915. [The control of Pieris brassicae.] In [Orchard and Market-Gar- 

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1915. [Vegetable insecticides.] In [The Horticulturist], Rostov-on-Don, 

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SCHENCK. 



1859. Pyrethrum carneum and rosenm. In Canstatt's Jahrb. fiber die 

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 Scott, E, W., Abbott, W. S., and Dudley, J. E., Jr. 

 1918. Results of experiments with miscellaneous substances against bed- 

 bugs, cockroaches, clothes moths, and carpet beetles. U. S. Dept. 

 Agr. Bui. 707, 36 p. 



SlMMONDS, P. L. 



1891. The medicinal uses of flowers. In Am. Jour. Pharm., 4th ser., 

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 Slingerland, M. V. 

 1899. ^he peach-tree borer. Cornell (N. Y.) Agr. Exp. Sta. Bui. 176, 

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 Smith, J. B. 

 1891. The rose-chafer, or " rosebug." N. J. Agr. Exp. Sta. Bui. 82, 

 40 p. 



1910. Azolla vs. mosquitoes. In Ent. News, v. 21, Dec, p. 437-441. 

 Sprenger, C. 

 1912. Pflanzengifte als Selbsthilfe gegen tierische und pflanzliche Schiid- 

 linge. In Gartenwelt, 16 jahrg., no. 8, p. 110. 

 Thibault, J. K., Jr. 

 1918. Vegetable powder as a larvicide in the fight against mosquitoes. 

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 p. 1215-1216. 

 Thoms, H. 

 1891. Croton flavens und Chrysanthemum drier ariaefolium. In Ber. deut. 

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 Von Mueller, Baron Ferd. 



1895. Select extra-tropical plants. 9th ed., Melbourne, 654 p. 

 Vostrikov, P. 

 1915. [Tomatoes as insecticides. The importance of Solanaceae in the 

 control of pests of agriculture.] In Husbandry on the Don, 

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 Applied Ent., v. 3, ser. A, Agr., pt. 7, p. 340. 

 Washburn, F. L. 

 1902. Insects notably injurious in 1902. Minn. Agr. Exp. Sta. Bui. 

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 Williams, S. W. 

 1849. On the indigenous- medical botany of Massachusetts. In Trans. 

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 Williams, J. B. 

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