A Cheap Insecticide.— The assistant chemist, B. W. Kilgore, 

 of the North Carolina Experiment Station, has proposed the 

 following cheap arsenite tor spraying fruit-trees : A mixture 



of lime, boiled together for half an hour in two to five gallons 

 of water,^and then diluting it to about one hundred gallons of 



no soluble arsenic, and if was clearly shown that the "burn- 

 arsenic present, and is in direct proportion to its amount. 



Arsenites with />'< rJeai/x Mixture. — Mr. Kilgore also reports: 

 "Practical tests of the effect upon foliage of combinations of 

 Paris green and London purple, each with Bordeaux mixture, 



Paris green and one pound of London purple separately in 

 150 gallons of Bordeaux mixture, and applied to fig, grape, 

 mulberry, blackberry, pea, h. pear, and apple leaves. Each 



results as the above. Both theory and practice show these 

 combinations to be perfectly harmless to foliage and that they 



which they are based. The* use of lime for neutralizing the 

 injurious effects of the arsenites is in accord with the publica- 

 tions of Professor Gillette, in Bulletin No. 10 of the Iowa 

 Agricultural Experiment Station. Professor Kilgore s exper- 

 iments were made in July, 1890, but their publication was 

 delayed until a year thereafter. (See Technical Bulletin No. 

 2, of the North Carolina Agricultural Experiment Station, 

 Kaleigh. (nlv I, 1891.) 



E. G. Lodeman, of the Cornell (N. Y.) Station (Bulletin 

 48), has found excellent results to follow the combination of 

 Paris green and Bordeaux mixture for spraying apple trees to 

 combat codlin-moth and apple-scab. His conclusions upon 



"When Paris green was added to the Bordeaux mixture 

 the fungicidal action of the combination was more marked 

 than when London purple was used in place of Paris green. 



