24 BULLETIN 872, U. S. DEPARTMENT OF AGRICULTURE. 



FIG.l. GENERATOR TOO CLOSE FIG.2. GENERATOR TOO CLOSE 

 TO BAGS OF FLOUR. TO BELTS AND BAG TOO LOW. 



FIG.3. GENERATOR TOO CLOSE FIG.4. CORRECT PLACING OF 

 TO BELTS AND BAG TOO HIGH. GENERATOR AND BAG. 

 * 



Fig. 14. — The correct and incorrect placing of generators and bags of cyanid for 

 hydrocyanic-acid gas fumigation. (Dean.) 



