than one focus. The approximate position of each of the latter has,
however, been indicated by a star, while the figure placed close to
the star gives the number of earthquakes which proceeded from the said
center.

A word must be said in apology for the constant use in the following
list of the Spanish word "_convento_." This word which means
monastery, cloister, or convent, is universally used in the
Philippines to designate also the habitation of the clergy attached to
a parish church. Although these are, as a rule, spacious buildings and
were formerly inhabited well-nigh exclusively by friars, they can not
properly be called monasteries. Wherefore, in order to avoid lengthy
circumlocutions, the Spanish word "_convento_" has been retained.

The reader who is not familiar with this country may find it strange
that in reporting earthquake damages so much emphasis appears to be
laid on the harm done to churches and _conventos_. This is easily
explained by the fact that these buildings were often the only
structures within the meizoseismal area, and built nearly everywhere
in the most substantial manner.

In the present catalogue we have also included, by way of an appendix,
the earthquakes which are known to have occurred in the Marianas or
Ladrones group of islands. While their number is too small to warrant
separate publication, we believe that the data concerning them will be
welcome to the earthquake investigator.