173 
J J V T AVAUIIIIJ ALcJciU.* 
. Tbe foree’oin.o- fiY-nftrirnpn+c! florvi/inDl M j- n u,„i _ n 
>n would prove effective in practice only over a smalfer area. 
In Fiance, where this substance has been the subject of in: 
I -1 . —~ ~ mu OUUICUlJ U 1 11111 U.“ 
Brable experiments for the destruction of the root'form of the 
ape phylloxera, it has been found desirable to use it in such forms 
to preveiff its too rapid evaporation and escape from the soil : 
i? wll , e 1 n th 1 ls condition is observed, it is at once less liable to 
lure the plant, and more likely to destroy the insect. To this 
cl it has been combined with other substances in the form of 
did cubes, or mixed with absorbent powders, like diatomaceous 
I'rth, or tnpoli. Lately, the sulplio-carbolate of potash has been 
md a convenient and effective substance for administering the 
i sulphide of carbon and carbolic acid in combination. 
Carbolic Acid. 
[Experiment 6. A single full-grown larva of Scelodonta was placed 
der a glass dish with a bit of sponge moistened with a little strong 
.;bolic acid, in seventeen minutes this larva showed signs of 
| easiness, and in twenty-five minutes more, was apparently dead. 
a J. i 0ur n an ? twent y minutes after treatment it was taken from 
V dlsl b and three hours later was dead and discolored. 
i Experiment 7. Two root-worms were placed in thin muslin and 
! near the bottom, at one end of a crayon-box, as described 
the above experiments with bisulphide of carbon. These were 
; ated with about a teaspoonful of carbolized water poured into a 
j e near the opposite end of the box. In nineteen hours they were 
: loved from the earth and found to be dead. Fifteen hours after- 
ms they showed no signs of recovery. 
Experiment 8.—In this experiment, which was precisely like the 
f eeding, the result was unfavorable. The larvae were not exam- 
cl until forty hours after treatment, and at that time were both 
r e. 
: experiment 9.— In this experiment, which was similar to the pre- 
mg, the two larvae were found alive an hour and forty minutes 
>r being treated, and were returned to the box again. Carbolized 
er was again administered, as before, but in six and one-half 
rs both root-worms were still alive. 
