along the streetcar lines, mostly toward the south. One new addition to the city was Westmoreland. Around 1910, large numbers of Mexican immigrants settled in the "Segundo Barrio" (Second Ward), near industrial jobs for railroads and manufacturers of supplies for railroads. The Rusk Settlement House and El Campo Laurel lodge were two Second Ward organizations serving the emerging Mexican community in Houston. The Archdiocese of Galveston dispatched a missionary to the area, and later this initiative evolved into the Lady of Guadalupe Church. Several Protestant churches in the area followed. Revolution in Mexico the same year changed the immigration dynamic. In some cases, war induced Mexican-Houstonians to return to their native country to join the fight or assist family, but as the war dragged on, immigration from Mexico to Houston increased, mostly from the northern states of Coahuila, Nuevo León, and San Luis Potosí. Civil unrest in Mexico persisted into the 1920s, promoting continued immigration and the development of a robust Mexican-American community in Houston. In 1912, Joseph Jay Pastoriza introduced property tax reform to Houston. The "Houston Single Tax Plan" was based on Georgist principles and redistributed property tax burden from owners of personal property and developed land to owners of undeveloped land. While the Houston Plan was not a true single tax, it re-weighted appraisals to 70 percent of unimproved land and 25 percent of developed land. Personal property was exempt from local taxes according to this plan. This continued for a few years until 1915, when two courts ruled the plan illegal according to the Texas Constitution. Pastoriza continued to serve as Houston Tax Commissioner until 1917, when he became the first Mayor of Houston of Hispanic heritage. He died after just three months in office. In 1912, Houston established its first institution of higher learning. The Rice Institute, now Rice University, opened with an endowment of around $9 million. The board hired Edgar Odell Lovett as the school's first president, who recruited Julian Huxley as a professor of biology and Harold Wilson as a professor of physics. By 1912, Houston was home to twenty-five "tall buildings" ranging from six to sixteen stories. Office buildings extant in 1912 include the eleven-story Scanlan Building, the marble-clad South Texas National Bank Building, the eight-story First National Bank Building, the twelve-story Union National Bank, the ten-story Houston Chronicle Building, and the Southwestern Telephone Company Building. The sixteen-story Carter Building was