260 The Philippine Journal of Science 1922 
not include a trip to the northwest corner of the island. When 
one considers, moreover, the labor and market conditions, the 
cost of supplies and transportation, and taxation, it is evident 
that Samar is not a favorable field for activity in the mining 
of metallic minerals. 
Nonmetallic minerals—The general conclusions with regard 
to metallic minerals hold true with reference to the nonmetallic 
ones. However, realizing that in some cases negative informa- 
tion is as yaluable as positive, I desire to call attention to the 
economic possibilities of coal, petroleum, stone, clay, rock, and 
gravel, and artesian water in Samar. 
Coal.—Samar coal is still too “green” to be of much value, - 
and the seams are not of sufficient size to warrant mining at 
the present time. Two samples, whose analyses are given in 
Dalburg’s paper on the coal resources of the Philippines *7 show 
the following: 
TABLE 1.—Analyses of Samar coal. 
Source of sample. : Moisture.) Volatile. BA. stn Ash. | Sulphur. 
* 
Per cent.| Per cent.| Per cent.| Per cent.| Per eent. 
‘Wright (Paranns) 822 16.78 87.75 86.53 9. 54 2. 82 
Llorente® __.____. ot 12. 48 31.43 80. 46 25.68 | 10.57 
| Liguan (East Batan)b___....._-_.. i 6.08 40.86 51.24 2.82 0. 40 
“It is not known if these are outcrop samples. b For comparison. 
The comment that this lignite from Samar is a poor grade of 
coal is hardly necessary. No good prospects were noted, al- 
though on its cross-island trip, the party found specimens of 
woody lignite at various places between Loquilocan and Bagakay, 
and in the clay beds of most of the rivers one can pick up much 
lignitic material. Outcrops also were seen on Calbiga River, 
typically near Otoc; on Gandara River; and near Oquendo, on 
the west coast. The coal probably was deposited in local Plio- 
cene ** or later basins, and frequently the deposition was during 
torrential rains, so it would not be at all surprising if the beds 
thicken and thin to some degree. Faulting of the seams was 
observed. Therefore, the coal of Samar, in addition to being 
of poor grade, is geologically unfavorable for development. 
“ Dalburg, F. A., Mineral Resources of the Philippine Islands for the 
year 1911. Manila (1912) 62, 
* Vicarya callosa Jenk., a good coal-horizon index fossil, was not noted 
in any of the formations. 
