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For derris powder: 
ACTIVE INGREDIENTS 
Rotenone % 
Cther Derris Resins $ 
INERT INGREDIENTS i 
TOTAL 100$ 
For cube powder: 
ACTIVE INGREDIENTS 
Rotenone $ 
Other Cube Resins % 
INERT INGREDIENTS j> 
TOTAL 100$ 
the correct values being inserted in the blank spaces where indicated. 
Claims that products containing the active ingredients of derris root 
and cube root are non-poisonous or harmless are unwarranted. Products 
recommended for dusting the coats of animals should not be labeled as 
"Non-poisonous when used as directed." 
TIMBO AND 3ARBASC0: At the present time, methods for differ- 
entiation between cube roots and similar roots which may be imported 
under the name " timbo" or "barbasco" have not been worked out. There- 
fore, no objection has been raised to considering all of these closely 
related products as cube roots. 
According to the United States Department of Agriculture, Food 
and Drug Administration (426), R. J. Prentiss & Co. Inc., on May 10, 
1937 pleaded guilty to a charge of adulterating and misbranding derris. 
This product was represented to be derris, which contained a minimum 
of 5 percent of rotenone, but which in fact consisted of cube root 
containing less than 5 percent of rotenone. 
The Bonide Chemical Co., Jnc, on December 9, 1936, pleaded 
guilty to a charge of misbranding Bonide Dog-Zop Shampoo and Flea 
Killer. The percentage of water was not stated. 
Cox (93), Chief of the Division of Chemistry of the California 
State Department of Agriculture, in his annual report for 1935 held 
that only rotenone in cube or derris would be considered active, 
It is permissible, but not required, to state whether the rotenone 
in an insecticide comes from derris or cube. Later Cox (63) modified 
this ruling to permit California manufacturers of insecticides to 
label their rotenone products with the total ether extractive content 
so as to conform with the ruling of the U. S. Food and Drug Adminis- 
tration. 
Seltzer (372), American Consul at Para, Brazil, in a letter 
dated June 25, 1936 furnished the following information concerning 
the timbo industry of Brazil. 
