-8- 



Table III 



Effects of 20 i'iinute Exposures of Bees to Residues of 

 Various Concentrations of a Phenyl Mercury 



Number of Dead Bees 



Hours 

 2U 



U8 

 72 



96 



120 

 ^h 

 168 

 192 

 216 

 2U0 



2X 



hx 



Check 



1 

 1 

 2 

 2 

 3 

 h 

 S 

 7 

 8 

 10 







1 



2 

 2 

 3 



6 

 8 



8 



1 

 2 

 3 

 3 

 3 



6 



7 



9 



11 



1 

 1 

 2 

 2 

 3 



7 

 7 



10 

 12 



Total Dead 

 Total Bees 

 % Dead 



10 

 180 

 5.5 



8 

 209 

 3.9 



11 

 213 



S.l 



12 

 192 

 5.1 



A comparison of these data reveal that the mortality of bees during a ten day 

 period following an exposure of honeybees to a phenyl mercury was similar to that 

 of untreated bees. In one instance, the exposure to UX concentrations as a contact 

 application, the mortality appears to be greater. However this may be explained by 

 the relatively fewer bees in that particular cage. Otherwise there appear to be no 

 significant differences in the death rates of the bees. 



In conclusion it seems evident that the exposure to bees to the phenyl mercury 

 compound (Puratized) had little effect on the survival of the bees. No indication 

 of any repellant action was observed. 



— F. R. Shaw 



FERTILIZER APPLICATIONS FOR CULTIVATED BLUEBERRIES 



'tfliat kind of fertilizer shall I use for cultivated blueberries and how much? 

 The table below attempts to answer these questions. 



