it contains Baguio, _the_ health resort of the Islands. For the
readers outside of the Archipelago we remark that Benguet is at
present a subprovince of the Mountain Province, of which it forms the
southernmost part. The location of Baguio is shown on the map on Plate
II. A similar remark applies to Lepanto and Bontoc, likewise divisions
of the Mountain Province, whose capitals, Cervantes and Bontoc, are
indicated on the same map.

As we would hardly be justified in assuming that every reader is in
possession of a detailed map of the Philippines, and a knowledge of
the general distribution and the main directions of the principal
mountain systems of an earthquake country is important, we add a
second map on which these data are shown by means of dashes, together
with the most important seismic regions, and the positions of the
principal towns, bays, etc., mentioned in the text. (Plate II.)

Near the left margin of this second map will be found an index of the
seismic regions just mentioned, each of them being represented by its
ordinal number (large Roman figures). Near each of these ordinals is
placed the corresponding number of earthquakes since 1862 contained in
the catalogue (Arabic figures), which is followed, in brackets, by an
analysis of the said number, in which Roman figures designate the
degrees of the earthquake, scale of De Rossi-Forel, while small Arabic
figures, written like exponents, give the number of earthquakes of
each degree of intensity.

In drawing the map on Plate II it was not intended to represent the
epicentric area of every individual earthquake center (which would
have crowded the map beyond reasonable limits), but rather to show the
principal seismic regions. Hence most of these curves contain more