146 General Notes. [ February, 
from my home, and I could not watch them longer. Whether 
all dropped or not I am not able to say, nor whether all or any 
recovered. 
Wednesday, Sept. 29, 1880.—In the following experiments the 
cabbages were simply dusted or sprinkled with no effort to secure 
actual contact of the liquid or powder with the larve. The ex- 
periments were tried under my direction by a very trusty and 
careful assistant, Mr. Will. R. Hubbert, with the following re- 
ts: 
1st Experiment—By use of a common sprinkler, nine cabbages 
were treated with the liquid mixture, composed of one table- 
spoonful of Pyrethrum (7 grammes) toa gallon of water. In 
one and one-half hours after the application, a Zas¢y examination 
discovered thirteen dead larve and three live ones. 
2d Experiment—Ten cabbages were treated the same as above, 
except that two applications of the liquid were made; nineteen 
dead larvz and one live one were found. 
_ 3a Experiment.—Twenty-six cabbages were treated with a 
liquid mixture of one tablespoonful of the powder to two gallons 
of water. One application was made with Whitman’s Fountain 
ump. Eleven dead and four live larvze were found. 
gth Experiment—The same as experiment 3, on thirteen cab- 
bages, except that two applications of the liquid were made. 
There were five dead caterpillars and two alive. 
5th Experiment—Twenty cabbages were dusted with a powder 
compound of one part of Pyrethrum to forty of flour; five dead 
larve and one live one were found. : 
th Experiment——-Twenty cabbages were treated the same as 
No. 5, except that the mixture was in the proportion of I to 20; 
three dead and three live caterpillars were found. 
e examinations in all the above cases were made one and 
one-half hours after the application of the liquid. The examina- 
tion was too hasty to be thorough. 
The next day all were again examined with great care, so that 
very few, if any larve were omitted in the count. 
No. 1. 9 Cabbages, 17 dead, 39 stupefied, 3 alive. 
se wi 10 oe 42 “ce 30 ee I ee 
“e 35 26 “ec ES 4 re) “ 58 “ec 
ee 4. I 3 “cc 25 ee 3 “ I “ec 
“s a 20 “ I 8 “ec =! “ 9 ‘ec 
‘“ 6 20 “ce 9 “ re] “cc I “ec 
Friday, Oct. 1, 1880. Experiment 1—Treated twelve cabbages: 
used one gallon water and % spoonful of Pyrethrum. Carefu 
examination revealed eleven dead and eleven alive. 
Experiment 2,—Twelve cabbages: used one gallon water to A 
spoonful (2 grammes) of the powder. Eleven dead and four alive. 
Experiment 3.—Twenty-six cabbages: used Pyrethrum and flour 
1 to 40. Three dead, five alive and one stupefied. 
