50 INSECTICIDE STUDIES. 



MIsCKLI.ANKors SOLID INSECTICIDES AND Fl'Nl ilCIDKS. 



i 



The analyses of a number of solid insecticides and fungicides that 

 do not come under any of the previous headino-s are given in the 

 following tables: 



SULPHURS, 



TABLK XVII. <.'<nii/>itxif!<>n <> 



The total for sample No. 35 is given by the chemist who made the 

 analysis as 100 per cent, but all the constituents added together amount 

 to 100.3 per cent, as above. 



PINE TAR INSECTICIDES. 



This is an insecticide obtained from the destructive distillation of 

 pine knots. It readily mixes with water and is slightly sticky and 

 greasy. 



Mf(i DEATHS. 



TABLE XVIII. Composition <>//>"</ 



I'oTASSIl'M CYAXID. 

 [Nis. L'Saiid 117(1 I & W.] 



Sample No. -2''\ contained 53.1^ ]>er <-eni of potassium cyanid calcu- 

 lated from the cyanogen. The remainder of the sample appeared to 

 consist principally of moisture and ><>me potassium carbonate and 

 chlorid. The method of analy^i< u^ed was that described in Bulletin 

 68, Bureau of Cheini-trv. 



