-125- 
Solutions of strychnine nitrate and tincture of nux vomica, both 
mixed with honey, did not affect ants#~Cobelli ( lOO ). 
Strychnine was tested against the body louse. Only 11 percent of 
the adults died within 120 hours, but 78 percent of the eggs did not 
hatch.— Moore and Hirschfelder (285 , p. 50) • 
A large tomato hornworm drank 0.8 oc. or more of 1 percent of 
strychnine sulfate without being harmed, but when 0*5 cc« was injeoted 
into a caterpillar violent convulsive movements, with incoordinated 
trembling of legs and prologs, were produced, followed by quiescence 
and often a strong ventral flexure and paralysis of the appendages* 
Full recovery was obtained in 12 hours •-- Crozier (110 , pp. 240-242). 
Strychnine sulfete (0.002 pound per 50 gallons) in a water spray 
killed none of the Japanese beetles tested within 6 days.— Moore and 
Campbell ( 284 , p. 400) . 
Corn boiled in a solution of strychnine and then scattered thinly 
over the ground or plowed or spaded under the soil was a control for 
mole crickets.— Schlosser ( 357 ) . 
A Canadian patent describes the following poisonous mixture for 
noxious insects: 3 ounces of strychnine, \ gallon of vinegar, 1.5 
gallons of water, 1.5 gallons of oats and barley mixed with water, -^ 
gallon of corn sirup, 3 ounces of sodium bicarbonate, 3 ounces of 
bacterial dregs; to which after the mixture has fermented is added 34 
pounds of grain, 3 ounces of potassium nitrate, and 2 ounces of sodium 
chloride, and finally the entire mixture is dried.— Ericks on ( 131 ) . 
In a United States patent a parasiticidal oil is described. 
Strychnine, nicotine, and many crystalline poisons may be added to a non- 
volatile viscous oil which is dispersed in water. Certain scale in- 
sects and mealybugs are to be sprayed with this mixture.— Knight (23 2 ) . 
In the laboratory not more than 10 percent of the wireworms tested 
were killed by feeding on linseed cake poisoned with strychnine. They 
were not affected by eating grains of wheat soaked in a saturated solu- 
tion of strychnine. —Mas ait is (270 ) . 
Strychnine sulfate was as toxic as rotenone to young screwworms. — 
Bushland ( 75 , p. 671). 
STRYCHNOS TOXIFERA Schomb. ex. Benth. 
A weak concentration of curare £ an alkaloid of this speciesT in- 
creased the heart activity of the larva of Corethra crystallinn (Peg.) . — 
Dogiel ( 120 , p. 32). 
The minimum toxic concentration required to kill about 95 percent 
of the bean aphids spraved was (greater than 0.5 gm. per 100 cc. while 
