It was from his gubernatorial residence, the old two-story adobe at the corner of Aliso and Los Angeles Streets, that Frémont set forth with Jesus Pico and Jacob Dodson for his famous mustang ride to Monterey. The feat, with its object--to defend his position as Governor against Kearny--was such as to appeal to the imagination of the people of Los Angeles, both Mexican rancheros and American trappers and sailors. Over desert and mountain the three riders flew, leaving on the morning of March 22d and reaching Monterey, five hundred miles away, on the afternoon of the fourth day. The return was accomplished with equal speed, so that the trip of one thousand miles was made in a little over eight days. Frémont did great service in the Senate of the United States, where he pleaded for the land rights of Indian and Spanish residents, and in later years, when his influence aided in the exclusion of slavery from the new State of California. The town council was re-established in 1847, Don José Salazar and Don Enrique Abila being alcaldes; but in 1848 Governor Mason dissolved the council and installed Stephen G. Foster as alcalde. A semi-military rule was kept up under Colonel Stevenson until May, 1849, when a new ayuntamiento was established. The cattle trade was at its best from 1850 to 1860, when in one year one hundred thousand hides at $15 apiece were shipped from San Pedro, but the business was injured by the drouth of 1863 and 1864. The town grew slowly, increasing in orchards and vineyards, its ranchos--many new ones having been granted by Pico in 1846--sheltered in the bend of the Los Angeles River, which, by ancient decree, is, from the mountains down, the property of the city. In 1851 Los Angeles grapes brought in San Francisco 20 cts. a pound; at the mines, $1. The city escaped the excitement of the gold fever, although the yellow metal was first discovered near Los Angeles in 1835. Among the noted Spanish families at the time of the conquest were the Lugos, the Sepulvedas, the Bandinis, the Estudillos, the Oliveros, the Picos, and the Coronels. Prominent among the pioneers of old Los Angeles were the Workmans, Temples, and Wolfskills, David W. Alexander, Colonel Couts, and Governor Downey, Judge J.R. Scott and Benjamin D. Wilson, Robert S. Baker and Hugo Reid. Hon. H.C. Foster, one of the early mayors of Los Angeles, became a resident of the city in 1847. Governor Pio Pico, who had fled at the approach of Stockton to save the "honor" of Mexico, returned and became a conspicuous private citizen. He lived to a great age, duly performing his duty as a registered voter. [Illustration OLD ADOBE. FRÉMONT'S HEADQUARTERS.]