their business, they were unable to force the viceroy to retract his measure. His determination was founded on the fact that trade had now become established on a firm and robust basis, and that it could well bear without injury an impost of this character.
In the years 1574 and 1575 there were serious discussions between the temporal and spiritual powers of Mexico, growing out of a royal order that no prelate should be admitted in the country unless he bore a suitable license from the Council of the Indies. In 1576, Mexico was again visited by a frightful pestilence, which spread rapidly, and carried off large numbers of victims. The whole of New Spain was ravaged by it, and neither care, nor medical science, seems to have had the least effect either in curing or in alleviating the sufferers. The symptoms of this malady were a violent pain in the head which was succeeded by a burning fever, under which the patient sank. None survived the seventh day, and it is reported that near two millions perished under the dreadful scourge. The malady abated at the close of the rainy season, and disappeared entirely at the beginning of 1577.
In the two succeeding years, Don Martin commanded that the usual annual tribute should not be collected from the Indians. This measure was designed to alleviate the lot of these suffering subjects of the king and to testify the paternal regard which he cherished for a race that served him and his subjects so beneficially in the mines. It was in the mineral districts that the Indians were in reality the greatest sufferers and laborers in New Spain. Their toil was incessant. Their task masters gave them no respite in the bowels of the earth, for they wrought as if they designed to scrape every vein and artery of the colony's soil. Silver and labor were calculated with exactness, and no limit to the Indian's industry was prescribed save that which was imposed by his capacity for work and his power of endurance. The viceroy, seeking to alleviate this, introduced a milder system, as far as he was able, among the leading miners of the colony. He insisted upon permitting the Indians regular repose, and he forbade their entire confinement within the mines, but commanded that they should be allowed time to breathe the fresh air on the surface of the earth, and suffered to attend to their own domestic labors, or to toil on public works for a competent recompense.
The government of Don Martin had thus far been unusually calm, but his last moments in Mexico were to be disturbed by a quarrel with a Franciscan monk, named Rivera, who had called at
