Application of the usual sanitary measures has made it a healthful place.
Old jails throughout the islands have been rendered sanitary, or replaced by new ones.

The loathsome skin diseases from which prisoners formerly suffered have in consequence disappeared.

The practical results obtained in Bilibid, the insular penitentiary, are worthy of special note.

The annual death rate at this institution was 78.25 per thousand for the calendar year 1904.

It increased steadily each month from January, 1904, to September, 1905, when it reached its maximum, deaths occurring at the rate of 241.15 per thousand per year.