MARYSVILLE, Cal., Sep. 2, 1859.
SINCE my last, I have traversed the rich valley of San José, looking through some of its choicer gardens and orchards, and stopping at Santa Clara, Warm Spring, Old Mission, San Leandro (county seat of Alameda), and Oakland, returning to San Francisco, and coming thence by steamboat to Sacramento and by a much smaller boat up to this city, which I reached last evening, in season to listen to the annual address, by Mr. Rhodes of Oroville, at the agricultural fair, and to break my own voice for a time in attempting to follow him in some off-hand remarks. The edifice erected by the public spirit of Marysville for the fairs which are to be held here annually, and at which all northern California is invited to compete for very liberal premiums, is quite spacious and admirably adapted to all its purposes except that of public speaking; and herein is collected the finest show of fruits and vegetables I ever saw at anything but a state fair. Indian corn not less than twenty feet high; squashes like brass kettles and water-melons of the size of buckets, are but average samples of the wonderful productiveness of the Sacramento and Yuba valleys, while the peaches, plums, pears, grapes, apples, etc., could hardly be surpassed anywhere. The show of animals is not extensive, but is very fine in the depart-