﻿230 EVELAND. 



rich in fossil remains, but they are in a bad condition for examination, 

 and the best that can be said is to confirm the statement of Abella, 9 that 

 present-day marine forms occur. 10 



Resting on the conglomerate base is a heavy limestone bed, in places 

 metamorphosed to marble (Bued River below "Colgan's Camp") by later 

 andesitic extrnsives. Almost everywhere it is rich in fossil remains. It 

 is a yellow-white limestone, hard and compact, and excepting at the 

 outcrops on the greatest elevation, fairly resistant to erosion. The lime- 

 stone on the hills to the west of Bagnio is in places heavily stained 

 with iron oxide, giving it a deep rose color. At the bottom of the Bned 

 River gorge, at the "zigzag - " on the BengTiet road, iron oxide in excessive 

 amount has given the limestone a basaltic appearance, due to its black 

 color and extreme hardness. When the rock is seen in thin sections, 

 calcite, in large and small grains, with occasional evidence of recrystal- 

 lization, is shown practically to form its entire mass. 

 The sections show specimens of : 



Operculina complanaka Bast. 



Lithothamnium ramossissimum Ruess. 



Text id arm megeriana (?). 



Polystomella sp. 



Orhitoidcs sp. 

 At least one fossil which may provisionally be pronounced a nummulite 

 has been observed, the "alar prolongations" being well developed. Mr. 

 W. D. Smith, who furnished the above data, has examined other lime- 

 stones, in a region -farther to the south in Luzon, in Cebu and in Batan 

 Island, and all the paleontological evidence indicates the presence at one 

 time of continuous beds of limestone, which can with fair safety be 

 classed as Miocene, extending throughout the Philippine Islands, or at 

 least throughout such parts of the Archipelago as were under the proper 

 topographical conditions at the time it was deposited. A further study 

 of broader areas than this small Baguio district is expected to add much 

 to the stratigraphie correlation of these beds. An analysis u of the 

 white limestone from the vicinity of Baguio is as follows : 



9 Abella: Terremotos de 1892 (1893), 33. 



10 Since this paper was written these fossils have been examined more carefully 

 and with the aid of literature which we have since obtained we are able to 

 single out several forms, the same as, or closely related to, Javan and Bornean 

 forms which are certainly Tertiary and one, Turbo oorneensis, which seems to be 

 confined to the Eocene. These fossils are all casts and poorly preserved, making 

 exceedingly unsatisfactory material to work with. — W. D. Smith. 



"Made by L. A. Salinger, Chemical Laboratory, Bureau of Science, 1900. 



