grade containing lead acetate. It was soluble in ether 

 and less soluble in alcohol. The alcoholic solution of 

 this third lot gave no precipitate with hydrogen sulphide. 

 The first and second lead precipitates were filtered hy suction 

 and washed with water. They were kept a day or two in a 

 desiccator over sulphuric acid but did not become completely- 

 dry. The weight of these two moist precipitates together 

 was 172gm, They were combined and extracted with ether 

 in Soxhlet extracttrs which were kept in operation during 

 work hours for three days. 



In the meantime the alcoholic filtrates from these lead 

 precipitates were combined and concentrated on the water-bath 

 by distilling off two liters of alcohol. The alcohol obtained 

 had the peculiar odor of the original material, but was not 

 poisonous. 



After a long extraction of the lead precipitate in the 

 Soxhlet extractors, the green ether solutions were combined 

 and washed by shaking them with water to remove lead acetate 

 and acetic acid in case any should have been held in the lead 

 precipitate. The ether was distilled off at a low temperature 

 and there reir&ined a soft tar, a portion of which was not com- 

 pletely soluble in 95% alcohol. The alcoholic solution had 

 a greenish yellow color and was poisonous. The tar was also 

 partly soluble in acetic acid, and this solution was found to 



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