EXPERIMENT STATION REPORTS. 



271 



ARSENATE OF LEAD (DRY POWDER). 



CALCIUM ARSENATE. 



Six samples of calcium arsenate and one of magnesium arsenate were 

 collected and analyzed. All of these samples contained arsenic oxid 

 equal to the guarantees. One sample (49G) contained an excess of solu- 

 ble arsenic oxid. 



