12 BULLETIN 1312, U. S. DEPARTMENT OF AGRICULTURE 
Fic. 11.—Average loss of nicotine from all nicotine sulphate dusts 
showed a loss of 52 per cent, as compared with 31 per cent for nicotine 
sulphate; the pasteboard box, 67 per cent as compared with 39 per 
cent; and the canvas bag, 77 per cent as compared with 43 per cent. 
Fic. 12.—Average loss of nicotine from ail free nicotine dusts 
