We have received from Messrs. Warren & Son, of San Francisco, a circular containing a premium list amounting to about two thousand dollars ! The Fair was to be held at San Francisco, and continue one month. We notice a premium of twenty-five dollars offered for the best one hundred acres of potatoes. This looks like doing things on a large scale. We copy the premiums offered on fruit:

"For the finest display of grapes, a silver cup, $25. For the finest display of melons, a silver cup, $25. For the finest basket assorted fruits from one cultivator, a silver cup, $25. For the finest specimens of native grapes, a medal, $10. For the finest specimens of figs, a medal, $10. For the finest specimens of pears, a medal, $10. For the finest specimens of apples, a medal, $10. For the finest specimens of peaches, a medal, $10. For the finest specimens of watermelons, $5. For the finest specimens of muskmelons, $5. For the finest specimens of egg plant, $5. Every dish of fruit of rare or new kinds, esteemed by the committee worthy, shall receive a medal, valued at $5".