PHILIPPINE DIPTEROCARPACEAE. 
239 
Table II. — Distillation of Philippine Dipterocarp woods. 
Watery dis- 
tillate. 
Un- 
Yields of water-free wood. 
No. 
Class of wood. 
H 2 0. 
Firing. 
Cc. 
per 
100 g. 
of 
wood. 
Acid- 
ity. 
Tar. 
Char- 
coal. 
con - 
dens- 
ed 
gases. 
Acet- 
ic 
acid. 
Wood 
alco- 
hol. 
Tar. 
Char- 
coal. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
1 
Palosapis green. 
22.4 
Some w hat 
rapid. 
50.9 
4. 04 
' 2.0 
20.5 
24.0 
2.66 
2.7 
26.4 
2 
Palosapis dry 
11.2 
Moderately 
slow. 
46.0 
6.25 
4.1 
23.7 
25,2 
3.26 
--- 
4.6 
28.4 
3 
Apitong dry 
11.6 
Slow 
41.4 
8.68 
9.8 
27.3 
20.3 
4.06 
2.24 
11.1 
30.9 
4 
do 
7.2 
do 
45.1 
9.96 
11.9 
30.4 
10.6 
4.84 
2. 33 
12.8 
32.7 
5 
Lauan dry 
8.0 
Moderately 
slow. 
41.9 
6.15 
5.3 
29.1 
22.2 
2.85 
5.8 
31.6 
6 
do 
5.0 
Slightly 
slow. 
34.5 
9.91 
5.6 
30.3 
2811 
3.59 
5.9 
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 120°-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. The high per- 
centage of creosote oils (150° to 250°) is especially noteworthy as they 
constitute the most valuable fraction of the tar. 
Paper pulp. Bichmond 7 has shown that the wood of some species is 
suitable for the production of pulp for paper-making. 
Wood oil. Under the name of ialao, an oil is obtained from species of 
Dipterocarpus and Anisoptera. For a discussion of this oil, methods 
of collection, etc., see under Dipterocarpus, page 242. 
Resin. In many species, as a result of injury, or for other reason, the 
resin accumulates in considerable masses, which are sometimes collected 
and disposed of under the name of dammar. It is used locally for 
torches and for caulking boats. Whitford 8 describes the method of 
7 Richmond, G-. F. Philippine Fibers and Fibrous Substances : their Suitability 
for Paper Making. Part III. This Journal 2 ( 1907 ) A, 83-94. 
8 L. c. 55. 
