64 THE FLORIDA ENTOMOLOGIST 
“BLACK LEAF 40” 
(Sulphate of Nicotine—40% of Nicotine) 
For liquid spraying against aphis, thrips, leaf-hoppers, 
etc. May be combined with other standard spray-chemicals. 
Always dependable and efficient. 
“Black Leaf 40” is, in Very Truth, “The Old Reliable’ 
PRICES 
els AGIs ee ee ee ee el ee ee Sule 25 
Qe lbh Ging ee ee ee ae eer teh hae eens 3.50 
IOS Y oa ht 6 Pea a err uae ie ge ad al be a) oe ol eae 13.50 
“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. 
Dal bins se Se ee ee ee ee $ 1.10 
PAA ach bh es Meee, ek ene iO ae oat OT EN I 3.75 
S(Oilos Cobb rey peek eee ee SO et eee? 6.75 
OO STD a Tee ees ee EEE es 2 ea ee 12.75 
“BLACK LEAP” ~ F- NICOTINE DUST 
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. 
L593 | CVS) 9 ib cee eee emer Se Races Plays er er Det eg At ple $ 1.30 
OA Se ll oVcentc Wen b 09 Wate Seen rar Un eee SNC ora Deletes Cute, «icp 3 4.75 
BQ alsin. Be lea ee Ser a Rene 8.75 
TM QO=) ype yan ec ea 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-PRODUCTS & CHEMICAL 
CORPORATION 
(Incorporated) 
LOUISVILLE, KENTUCKY 
