376 The Philippine Journal of Science 1913 



Plate VI 



Fig. 1. Bahay well 2 on the property of the Bahay Valley Oil Company, 

 Bahay. (Photograph by Pratt.) 

 2. Looking eastward near the mouth of Cambagnaon Creek. The 

 hills in the distance lie on the eastern flank of the Central anti- 

 cline. (Photograph by Manila Mining Association.) 



Plate VII 



(Photographs by Manila Mining Association) 



Fig. 1. Looking west-northwestward across Vigo River near the eastern 

 coast of the peninsula; the eastern slope of Mount Dagmit to 

 the left, and in the distance beyond the river, a part of Cam- 

 bagaco Ridge with characteristic slope to the eastward resulting 

 from the eastward dip of the strata. 

 2. The eastern wall of the upper valley of Canguinsa River south of 

 Balinsog Hill. 



Plate VIII 



(Photographs by Manila Mining Association) 



Fig. 1. Looking northward from near Balinsog Hill. 



2. Looking westward from near Balinsog Hill, across the upper valley 

 of Canguinsa River, which marks the crest of the Central anti- 

 cline, to Cudiapi Range on the western limb of the Central 

 anticline; South Cudiapi Mountain in the middle distance. 



Plate IX 



(Photographs by Pratt) 



Fig. 1. Looking east-northeastward across the valley of Malipa Creek 

 toward the ridge along the eastern coast, Mount Cambagaco to 

 the left, gap formed by Vigo River in center, and Mount Dagmit 

 to the right. 



2. South Cudiapi Mountain across the valley of Bondoc River; look- 



ing northeastward from a point 2 kilometers south of Bondoc. 



3. Mount Cancalao in the valley of Matataha River; looking westward. 



Plate X 



(Photographs by Pratt) 



Fig. 1. Outcrop of Cudiapi sandstone in the eastern limb of the Central 

 anticline; looking northwestward from near the head of Can- 

 guinsa River. 



2. Outcrop of Canguinsa sandstone in the eastern limb of the Mag- 



lihi anticline on the lower part of Bahay River; looking south- 

 ward. 



3. Nearly vertical Vigo shale near the axis of the Central anticline 



on the lower part of Cambagnaon Creek; looking southward. 



4. Outcrop of volcanic agglomerate near Dumalog Creek. 



MAP 



Geologic reconnaissance map of a part of Bondoc Peninsula with 5 geo- 

 logic sections. 



TEXT FIGURE 



Fig. 1. Diagrammatic section in the upper valley of Malipa Creek. 



