IS 



The above arsenate of lead is what is usually called " Arsenate of 

 lead paste " and is more often sold in this form. When brought to 

 the dry state it does not mix with water readily, and is therefore not' 

 so easily applied. 



The above sample of acetate of lead and arsenate of soda were 

 used for the making of arsenate of lead. The lead compound tested 

 about 85.21^ acetate of lead. The arsenate of soda tested about 

 2?>.2,']( arsenate of soda, i.^^''j( potassium chloride and 56.53'/c sodium- 

 chloride or common salt. The mixture of arsenate of lead resulting 

 from a chemical combination of the lead acetate and sodium arsenate 

 did not prove efficient in destroying potato bugs: — its inefficiency 

 was probably due to the poor quality of the arsenate of soda used in>. 

 the mixture. 



