PHILIPPINE DIPTEROCARPACEAE. 
239 
Table II. — Distillation of Philippine Dipterocarp woods. 
No. 
Class of wood. 
H2O 
3 
4 
Palosapis green. 
Palosapisdry.— 
Apitong dry 
do 
Lauan dry 
P.ct. 
22.4 
Waterv dis- 
tillate. 
Firing. 
Cc. 
per 
100 g. 
of 
wood. 
11.2 
do 
11.6 
7.2 
8.0 
5.0 
Somew hat 
rapid. 
Moderately 
slow. 
Slow 
do 
Moderately 
slow. 
Slightly 
slow. 
50.9 
46.0 
41.4 
45.1 
41.9 
34.5 
Acid 
ity. 
4.04 
6.25 
8.68 
9.96 
6.15 
Tar. 
P.ct. 
Char- 
coal. 
Un- 
con- 
dena- 
ed 
'gases. 
Yields of water-free wood. 
2.0 
P.ct 
20.5 
9.91 
4.1 
9.8 
11.9 
5.3 
23.7 
27.3 
30.4 
29.1 
P.ct. 
24.0 
Acet- 
ic 
acid, 
Wood 
alco- 
hol. 
P.ct. 
2.66 
25.2 ! 3.26 
5.6 
30.3 
20.3 
10.6 
22.2 
28.1 
P.ct. 
Tar. 
Char- 
coal. 
P.ct. 
2.7 
4.06 2.24 
4. 84 2. 33 
2.85 
3.59 
4.6 
11.1 
12.8 
5.8 
P.ct. 
26.4 
5.9 
28.4 
30.9 
32.7 
31.6 
31.9 
Birch, beech, or maple under the same conditions would yield somewhat 
more acetic acid (5 to 6 per cent) and considerably less methyl alcohol 
(about 1 per cent), the latter being much the more valuable product of 
the two. 
Apitong tar is a mobile black liquid which when distilled yielded 
Aqueous distillate, about 10 per cent. 
Oily distillate I20'='-150^ 8 per cent. 
Oily distillate 150°-250^ 40 per cent. 
Oily distillate 250°, 7 per cent. 
Pitch, 34 per cent. 
The low boiling oils (120°-150°) when further purified are almost 
colorless liquids of neutral reaction and pleasant odor. Tlie high per- 
centage of creosote oils (150^ to 250°) is especially noteworthy as they 
constitute the most valuable fraction of the tar. ^ _ 
Paper pulp. Richmond^ has shown that the wood of some species is 
suitable for the production of pulp for paper-making. _ 
Wood oil Under the name of halao^ an oil is obtained from species of 
Dipierocarpus and Ani^opiera. For a discussion of this oil, methods 
of collection, etc., see under Dipterocarpus, page 2A2. 
Resin. In many species, as a result of injury, or for other reason, he 
resin accumulates in considerable masses, which are sometimes collected 
and disposed of under the name of dammar. It is used locally ior 
torches and for caulking boats. Whitford ^ describes the method of 
'Richn.ond, G. F. riulippmo Fiber, aud Fibrous Hub.t.uu-e.: their Suitability 
for Paper Making. Part 111. This Journal 2 (190/ ) A, SJ J4. 
" L. c. 55. 
