BULLETIN 1312, U. S. DEPARTMENT OF AGRICULTURE 
2 + 6 & 40 12 JA 76 48 20 <2 
MONT SSS 
Fia. 3.—Loss of nicotine from nicotine sulphate-talcum dust 
PLO CLAW 7- 
ea F ro} a 70 4a JA 46 18 20 
Fic. 4.—Loss of nicotine from nicotine sulphate-calcium hydroxide dust 
