Part II.] Pearson: Antiseptic Treatment of Timber. 
65 
signs of decay nor have they been attacked by white-ants, while several 
of the treated pieces have perished. 
Plate V, specimens a and b show pieces of untreated and treated 
Boswellia serrata, and specimens c and d pieces of JTicea Morinda } 
which had been in the ground for two and one month respec- 
The condition of the specimens up to date is given below :— 
Register 
No. 
Tbeated. 
Untbeated. 
Species. 
Date on 
Date of 
Date on 
Date of 
inspection. 
which 
inspec- 
Condition. 
which 
Condition. 
laid down. 
tion. 
laid down. 
1 and 2 
Bosvjeilia serrata . 
12th June 
17th Aug. 
Sound . 
12th June 
12th Aug. 
Destroyed by white- 
1909. 
1910. 
1909. 
1909. 
ants and removed 
on 12th August 
1909. 
3 and 4 
Pinus longifolia , 
Do. . 
Do. . 
Do . 
Do. . 
17th Aug. 
Sound. 
5 and 6 
1909. 
Finns excelsa . 
Do. . 
Do. . 
Do. . 
Do. . 
Do. 
Do. 
7 and 8 
Picea Morinda 
Do. . 
Do. . 
Do. . 
Do. . 
1st Oct. 
The lower portion 
1909. 
entirely destroyed 
by white-ants. 
The piece was 
removed on 1 st 
October 1909. 
9 and 10 
Abies Pindrow 
Do. . 
Do. . 
Do. 
Do. . 
17th Aug. 
White-ants work¬ 
1910. 
ing over the sur¬ 
• 
face. 
11 and 
Pterocarpus macro- 
Do. . 
Do. . 
Do. . 
Do. . 
Do. 
Sound. 
12. 
carpus. 
13 and 
Bombax malabari- 
Do. . 
Do. . 
Do. . 
Do. . 
Do. 
Badly attacked by 
14. 
cum. 
white-ants, piece 
removed on 17th 
August 1910. 
15 and 
16. 
Bauhinia retusa 
Do. . 
Do. . 
Do. . 
Do. . 
Do. 
Sound. 
17 and 
Dipterocarpus tuber- 
Do. . 
Do. . 
Do. . 
Do. . 
Do. 
Do. 
19. 
culatus. 
19 and 
Anogeissus latifolia 
Do. . 
Do. 
Sound 
Do. . 
Do. 
White-ants working 
20. 
though 
cracked. 
over the surface. 
21 and 
Odina Wodier . 
Do. . 
Do. . 
Sound . 
Do. 
Do. 
Slightly pitted by 
22. 
white-ants. 
23 and 
Shorea robusta 
Do. . 
Do. . 
Do. . 
Do. . 
Do. 
Sound. 
24. 
The above results show that three out of twelve of the untreated 
woods have been destroyed, three others are under process of destruction 
and six are still sound. On the other hand, except for slight cracks in 
some cases, the twelve treated specimens are intact. 
( 138 ) 
B 
