48 THE FLORIDA ENTOMOLOGIST 
“BLACK LEAF 40” 
(Sulphate of Nicotine—40% of Nicotine) 
For liquid spraying against aphis, thrips, leaf-hoppers, 
ete. May be combined with other standard spray-chemicals. 
Always dependable and efficient. 
“Black Leaf 40” is, in Very Truth, “The Old Reliable” 
PRICES 
aT Sel OPM Gi Ae ae ata RAN SOO Re ei ee $1225 
PV yh Sat la fe eee ce Nae A Nee oe Sad eal 3.50 
HQ Dike y GUT ee ee ee 138.50 
BLACK LEAF”-FI-NIGOTINE DUST 
Contains Over 114% of Actual (“Free”) Nicotine 
Made from our own high-strength (“Free’’) Nicotine. 
Thoroughly standardized as to strength and texture. Rec- 
ommended for dusting vegetables to destroy aphis. 
PRICES 
F. O. B. Richmond, Va. 
Lyall Opes cri § ooo ee eee ae ae Oe pr RS RIE ss Cond eee AI 
De A CLISULIYA eee ee oe eee) 
HOS acd rune eke S00 ee ee aa ere 
TOO lb oe eee ee es TL ee ee 
“BLAGK LEAP F NICOTINE 0 
Contains Over 2% of Actual (“Free”) Nicotine 
Is stronger in nicotine than our—F1—Dust, but other- 
wise, is the same. Recommended against the more resistant 
insects, such as cucumber beetle, pea aphis, etc. 
PRICES 
F. O. B. Richmond, Va. 
Halibag xbinieton ba 8 oe eee es a eae $ 1.30 
= lb TU Me ot ee 4.75 
BOA bie -GrumM= so 2k ee SS a 8.75 
TOOS oer Ue ee ele ee ee 16:75 
“Black Leaf” products are sold by seedsmen, hardware 
stores, drum stores, general merchants, and dealers in hor- 
ticultural supplies. 
ASK YOUR DEALER 
TOBACCO BY-PRODUSTS & CHEMICAL 
CORPORATION 
(Incorporated) 
LOUISVILLE, KENTUCKY 
