APPENDIX II. 209 



TABLE 5. BISULPHIDE OF CARBON. 



In table 5 are given the results of several experiments with this insecticide. The 

 emulsion, of which the ingredients are given in the table, was formed by beating to- 

 gether with a spatula the carbon and lard oil and then adding the milk and water, 

 and emulsifying in the same manner. 



The trees in experiments 40 and 41 were very severly checked, although not seriously 

 injured, and all subsequently recovered. In experiment 39 the mixture was applied 

 during a rain, and was entirely without effect upon the tree or scale. 



