Irrigation is practiced on every farm. Fifteen thousand acres are covered by water stock, but not all irrigated yet. Just now the orange groves are irrigated, and I observe their methods. The land is always leveled before anything is planted, as there is too little water here to waste any on unlevel land. One way to irrigate an orchard is to plow furrows in between the rows of trees, and then let the water run in them. Another way is to check the whole orchard with small levees, inclosing thus a little square around every tree, and the square check of one tree meeting the same of the adjoining tree. This is actually flooding the land. Deciduous trees and vines grow without irrigation, but to get a good crop irrigation is necessary. The large, dry and rocky creek beds speak of the water that is wasted in winter time in flowing to the sea. Practically nothing of it is then saved. Irrigation districts under the Wright law are formed and forming, and everybody seems hopeful that in course of time there will be water enough to irrigate all the land that is good enough to be irrigated. Some of the finest ranches in the State lie right at the feet of Santa Ana. The San Joaquin ranch contains one hundred thousand acres, I am told, and it is not yet cut up, and thus some of the best land around Santa Ana is yet only used as pasture. The owners failed to sell in the time of the boom and must now wait until the land that is already covered with ditches will be fully settled before they can sell, but the time, we predict, is not very far off. SANTA ANA TO SAN DIEGO.