Every month in the year potatoes are being put into the ground and being taken out of the ground somewhere in California. We have, then, practically a continuous planting and harvesting season. There is, however, a division possible to make in this way: Plantings undertaken in September and October are for winter supplies of new potatoes, which begin about the holidays and continue during the winter. There is also in southern California a planting beginning in January, which might be called the earliest planting for the main crop, and other plantings for the main crop in the central and northern parts of the State begin in February and continue until May, according to the character of the land; that is, whether it is upland, on which the planting is earlier, or whether it is lowland along the rivers where excessive moisture may render the land unsuitable until April or May. The harvesting of the main crop then begins in May and continues during the whole of the summer, according to the character of the land cropped over, lapping the planting time for early potatoes first mentioned. It is also true by use of properly matured seed one can secure, in some places, two crops a year, if there is sufficient inducement therefor. Thus it comes about that we are continually planting and digging potatoes according to local conditions and the possibility of selling advantages. Keeping Potatoes. Advise me how to keep my potatoes. What is the best way? Would a dark room be suitable? Some people are digging holes in the ground to put them in. Potatoes, if properly matured and free from disease, will keep for a considerable time in dark rooms kept as cool as possible. They must be kept away from the reach of the moth, which is parent to the worm producing long black strings inside of the potato. If they are thoroughly covered with boards or sacking or straw, so as to keep the moth from reaching the potato, they may be held for a long time in the open air, and covering with earth, as your neighbors are doing, will be all right until the rains come and cause decay by making the soil too wet. The main point is to keep the tubers as cool as possible and out of reach of the potato moth. Potato Yield. What is the yield per acre of potatoes on the best land around Stockton, Cal., where work is done properly; also what is the yield for potatoes along the coast? The average yield of potatoes in California, taking the whole acreage and product as reported by the last United States census, is 147 bushels to the acre. In Stockton district, on good new reclaimed land the yield has been reported all the way from 300 to 800 bushels per acre - the crop declining rapidly when continued on the same land. One year's crop in the Stockton district was estimated at 45,000 acres averaging 125 sacks per acre. The coast yield would be more like the general average for the State as first given. New Potatoes for Seed.