REGULATORY LAWS 35 



national insecticide law that went into effect the 

 first day of January, 191 1. Its object was to pre- 

 vent the manufacture, sale, or transportation of 

 adulterated or misbranded paris greens, lead ar- 

 senates, and other insecticides and fungicides. In 

 this law it was decreed that paris green shall not 

 contain less than 50 per cent arsenious oxide nor 

 more than 3J^ per cent water-soluble arsenic and 

 that lead arsenate shall not contain more than 50 

 per cent water, nor less than I2j^ per cent arsenic 

 oxide (AS2O5) nor more than .75 per cent, water- 

 soluble arsenic. It was also decreed that other in- 

 secticides and fungicides should not fall below the 

 proposed standard or quality under which they were 

 sold. 



