20, 8 Schenck: Physiography and Geology of Samar 251 
meters in extent in an east-west direction. This thick coating of Pleistocene 
covers completely Vigo Miocene north of Mount Pampang. A few miles 
further south of Jubay at Daja, the unconformity between this Pleistocene 
limestone and steeply dipping beds of Vigo age is observed on the north side 
of Daja Bay. The terraces described in the vicinity of Rabin Point 
suggest uplifts or, if you wish to quibble, changes in level of the sea of 
considerable recency with periods of standstill during which such wide ter- 
races as the 200-foot terrace at Rabin Point were formed. The 100-foot 
and 200-foot terraces appear to persist over the whole southwest side of 
Leyte. On the north headland of Tabango Bay, the 200-foot terrace is par- 
ticularly pronounced. The 100-foot and 200-foot terraces occur likewise in 
the vicinity of Palompon and are probably present southeast of Maasin on 
the peninsula south of Baybay. 
These terraces record, whatever their origin may be, uplift or change 
in level of the sea, but it is interesting to note that the latest movement in 
the region north of Palompon was a local depression. In the vicinity 
of San Isidro and Arevalo bays excellent proof of such condition is clearly 
evidenced. 
In Bondoc Peninsula, a good Pleistocene fauna was recently collected 
from a terrace near Pinamuntangan Point at an elevation of 275 to 300 
feet. Other evidences indicated still higher terraces in this peninsula. 
Recent examinations along the southwest coast of Mindoro indicate 
extensive cliff sections, which at places for several miles defy the mariner 
to land. Similar cliff sections occur along Luzon in the vicinity of Manila 
Bay. In all cases where these cliffs are developed, the rock is compact and 
resistant to wave and stream erosion and the compactness of rock is the 
dominant feature of cliff development in the Philippines. 
A distinct terrace at 2,000 feet approximate elevation is clear at the 
south end of Cebu Island, in the vicinity of Alegria. Both geological and 
biological data indicate that Cebu underwent changes quite distinctive 
from the neighboring islands of Leyte on the east and Negros on the west. 
The party went from Dolores to Maslog by baroto and re- 
corded, for the most part, only outcrops of impure sandstones, 
or marls, which also were similar to the marl found at Wright. 
Little more was noted between Maslog and Concepcion, as will 
be seen from an examination of fig. 3. At this point particular 
attention should be called to the long regular stretch of Dolores 
River from Hinolaso to Sumakay, to its long south-flowing trib- 
utary, and to a straight stretch of Ulot River corresponding 
to that of Dolores River. Farther east both rivers meander to 
& great extent. Assuming the presence of an elevated marine 
terrace and further assuming that these rivers are antecedent 
Streams, this phenomenon is readily explained, though a low 
anticlinal structure might be the controlling factor. It has 
been pointed out that evidences of uplift have been noted at 
Several localities—and the island shown in Plate 1, fig. 1, fur- 
nishes marked indication of a terrace—on the west coast of the 
