_Climate and Rainfall._--The rainfall of the valley varies considerably. It has been known to be as little as six inches and as much as twenty, the average probably being about twelve inches, distributed as generally elsewhere in California,--during the winter months. In summer time it seldom rains,--perhaps a shower in two or three years. September is the warmest month, or at least the month with the greatest number of warm days. The highest temperature reached in the shade in El Cajon is 105 degrees Fahrenheit, and in Sweetwater valley 108, and the coldest in the winter twenty-four degrees Fahrenheit on the upper mesa land, while on the lower land, close to the river, the temperature falls low enough to kill orange trees, probably somewhere about eighteen degrees Fahrenheit. September is freer from fog than any other month. During the other summer months there is fog in the morning two days out of three. The fog, however, is warm and pleasant to all but consumptives, but, nevertheless, leaves behind a soaking dew on all vegetation, and is even heavy enough to moisten the dust on the roads. The moisture on this mesa land--by which is meant all the land between the hills, which are too steep to be plowed, and the actual river bottom lands--is near the surface. In the El Cajon and Sweetwater valleys, the water is found on this mesa at from eight to twenty feet, or at an average of from twelve to fifteen feet. On little hills or knobs in the valley the water is found at about the same depth. It is strange that with the water so near the surface no perennial vegetation of either shrubbery or trees should be found on this land. The grapevines will grow on it without irrigation; in fact none is used anywhere now, but no doubt it would prove profitable to irrigate somewhat, so as to increase the crops of grapes. Water can be had through the Cuyamaca flume, but has so far not been used. The vines do not grow after August 1st, and may stop growing sooner. _Soils._--The soils of the district are of four kinds: First, reddish clay mixed with gravel, the color changing between light chocolate and deep reddish. This soil is considered by many the most desirable. Second, a steel or slate gray adobe with much gravel of a coarse nature. Third, black adobe with little gravel. Fourth, alluvial sandy soil, apparently consisting of decomposed granite mixed with much vegetable matter. This soil is coarse, of a dark steel-gray color, very easily worked; it is considered the best for raisins, but it contains streaks where they will not grow and prove profitable. The last-named soil goes gradually over into common alluvial soil of a sandy nature. The two last-named soils are found principally in the Sweetwater valley.