ied by far greater loss of lives and property,
and consequently much more felt by the people than the destruction of
a church, _convento_, municipal building ("tribunal"), one or two
bridges, or other masonry structure.

In the present catalogue our aim has been to present all that is known
of the various violent and destructive earthquakes on record. The
first column of each page contains the ordinal number of the
disturbance for purposes of reference. In the second, the date is
given as accurately as it could be ascertained, Roman numerals being
used to designate the months. Unfortunately, of some earthquakes only
the year is known; of others, the year and month. Of one (No. 32) the
approximate hour has been recorded, but not the day of the month;
while of another (No. 38) the hour has been preserved for posterity,
but whether the phenomenon occurred during February or March, the
records leave undecided. In the third column will be found, in the
first place, the intensity of the disturbance, Roman numerals
representing the degrees of the scale of De Rossi-Forel (I-X); then
the region affected most, and finally the damages caused, if known,
and other information, if available.

In describing the epicentral regions, the present distribution of the
Archipelago into provinces has been used throughout the catalogue.
This division is shown on the first of the two maps of the Philippines
which accompany this catalogue (Plate I). As to the designation
"Benguet" occasionally occurring in the text where provinces are
enumerated, but not found on the map, we beg to offer the excuse that
the region thus named is exceedingly well known in the Philippines as
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 mo