THE INJECTION OF CHEMICALS INTO CHESTNUT TREES II 
(1) 1/500, changed to i/ioo 
(i) 1/5000, changed to i/iooo 
(l) I /l 0000 
(i) i/iooo, changed to 1/500 
-I 
Aniline sulphate 
( I ) I /i 00 
(3) i/iooo 
4 • • • 
LiCl 
-J 
IVleta cresol 
(2) i/ioo 
T'i^ t/tooo 
(2) 1/200 
I 
Para cresol 
Potassium ; 
(i) i/iooo 
■ 
4, . . . 
KOH 
A 
Ortho nitro phenol 
(2) I / 100 
(2) i/iooo 
(2) 1/200 
(2) I /i 00000 
4. . • • 
K2CO3 i/ioo 
1 
Para nitro phenol 
A 
K2SO4 i/ioo 
(2) l/'^OO 
i>- • • 
Colloidal copper 
(i) i/iooo 
(s) l/'^'^OO 
I 
Oil of bitter almonds 
2 
Colloidal metallic silver 
(i) i/iooo 
{2) 1/6400 
Phenol SodiQue 
2 
Colloidal metallic mercury 
(i) I cc. to 1,000 CC. H2O 
(2) 1/6400 
Phloroglucin 
3* 
. Potassium bichromate 
(3) i/iooo 
(i) i/iooo 
Pyrocatechin 
(2) 1/5000 
(l) l/i^OO 
5. . . . 
. . . . Potassium chromate 
(2) i/iooo 
f T ^ T / ^nOOO 
■I 
Sodium carbolate 
(i) i/iooo 
(3) i/iooo 
T"?) t/tooo 
■J 
Thymol 
I. 
Copper sulphate 
(i) i/iooo 
(i^ i/ioo 
(2) 1/3000 
I . 
Methyl alcohol 
(i) i/ioo 
2 , 
, Methylene blue 
(2) I gm. to 4,000 cc. H2O 
2. 
Trypan blue 
I gm. to 4,000 cc. 
Bark extracts:'^ 
3 Healthy bark 
(3) I cc. to 99 cc. H2O 
2 Canker extract 
(2) 10 cc. to 990 H2O 
3 Canker extract-citric acid 
(3) Canker ext. i cc. to 100 cc. 
H2O, with 
citric acid 1/500 CM. 
13 Water checks 
The records of absorption were divided into months for convenience in 
tabulating. It was found that injections could be made in February and 
March, when the rate of intake was very slow. The regular injections 
began in April, but the records for this month were not typical because it 
' The bark extracts were made by soaking for 24 hours the shredded bark and young 
wood in spring water. The proportions were 10 cc. of water to i g. of healthy bark or of 
.canker tissue. The extracts were filtered before using. 
