There has been constituted under the military government of Porto Rico a Superior Board of Health, consisting of a medical representative, each, of the army, navy and marine-hospital services and three civilian physicians. Their duties are defined in detail in General Order No. 102 of the Department Commander, and in clude not only supervision of health matters and vital statistics to an extent exceeding the functions of the average health board in this country, but also the supervision of public institutions, asylums, jails, court-rooms, theaters, etc., and the licensing and registration of physicians, pharmacists, undertakers and midwives. Its powers are broad, but apparently well defined, and with an intelligent but scientific board, such as is practically insured in this instance by its composition, health and collateral matters will be well looked after in Porto Rico. The advantages of the island as a winter resort are said to be very great,