Their belief in their old god, Huitzilopochtli, was strong as ever; probably their fortunes rose and fell with the intelligence or the lack of it in the priests who transmitted to the people the will of this deity. Through them it was decreed that the tribute demanded by the Tepanecs should be paid. These neighbors were pacified, and the Mexicans could go on unmolested in their work of improving their city, which they did by building temples and houses, and cutting canals through their island that the water of the lake might circulate freely. In the next reign, Huitzilihuitl, son of the first king, not only followed but improved upon the example of his father in marrying a daughter of some rival monarch. He sent ambassadors to various courts asking the hand of each princess in marriage. The result was good. By marrying a daughter of the king of the Tepanecs he relieved his people of the heavy tribute they had been forced to pay. His other wife, Cuauhnahuac, brought with her the knowledge of cotton for making wearing apparel, for the district she came from produced it in abundance, and her people understood the use of it. It is due to her, therefore, that the Mexicans became well clothed. Specimens of the wearing of their early times are preserved in the National Museum at Mexico. Her son was the famous Motecuhzoma Ilhuicamina, better known to us as Montezuma I. This king, who married the Princess of Cloth, greatly advanced his nation. He compiled laws, regulated religious ceremonies, systematized the army, with his brother at its head, thus establishing a custom which was always afterwards followed, that a brother of the monarch should be general-in-chief. In his day canoas, hollowed from trunks of trees, were put into general use for war as well as for traffic. The system thus introduced made his army a valuable accession to his neighbors when they went to battle. By the service they rendered to the Aculhuans in such a case, the Mexicans gained a high reputation as dangerous warriors. They were still tributary to the Tepanecs of Atzcapotzalco, then in the hands of the tyrant Maxtla, whom careful readers will remember. This usurper, jealous of the growing power of his vassal, and afraid of its results, caused the death of the little son and daughter of the Mexican monarch. "The king, Huitzilihuitl," says the authority, "dissimulated this cruel offence, considering that this was no time to expose his people to open war with the Tepanecs, thus giving proof of a patriotism equal to personal sacrifice." [Illustration: CANAL OUTSIDE THE CITY OF MEXICO.]