New York. Agricultural Experiment Station. 273 



Four hundred and eiglity-seven cherry buds were treated of 

 which 77.8 per ct. set. The total number of checks was 497, of 

 which 91.7 per ct. set. While the difference in these percent- 

 ages is much greater than in the case of the apples it is hardly 

 sufficient to indicate important injury by the gas. As pre- 

 viously stated the somewhat unfavorable conditions under which 

 the buds were grown, together with the fact that they were put 

 in about two weeks late, might easily account for this difference. 

 A more definite indication that the gas had little if any injurious 

 effect is shown by the comparatively high percentages of buds 

 set that were fumigated with .22 gram of cyanide. The 

 strongest gas and longest exposure had practically no more 

 effect than the weakest gas and shortest exposure. The growth 

 also was in all cases equal or nearly equal to that of the checks. 

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