The arable soils of Washington Territory, so far as I could see, or otherwise learn, may be classified as follows, to wit: _a._ Humus; _b._ Alluvium; _c._ Drift; _d._ Loam; _e._ Basalt. _a._ HUMUS. In West Washington the whole country is top-dressed with vegetable mould, derived obviously from the heavy growth which has covered the surface for ages. Of course there are bare spots, and where the growth has been light, the top-dressing is thin; but the mountain sides, the hills, and notably the low grounds, are overlaid from one to ten inches, and often much more, with this vegetable mould. TABLE SHOWING THE MEANS OF THE DAILY MAXIMUM AND MINIMUM TEMPERATURES IN DEGREES FAHRENHEIT. The Means are obtained by dividing the sum of the daily readings of the Maximum and Minimum Self-registering Thermometers by the number of days in the month. ====================+=========================================+ | 1883 | +-------------+-------------+-------------+ | July. | Aug. | Sept. | STATIONS. +-------------+-------------+-------------+ | Mean. | Mean. | Mean. | +------+------+------+------+------+------+ | Max. | Min. | Max. | Min. | Max. | Min. | --------------------+------+------+------+------+------+------+ Bismarck, Dak. | 79.5 | 55.8 | 78.6 | 54.8 | 69.4 | 43.7 | Dayton, W. T. | 87.3 | 53.6 | 85.1 | 53.2 | 77.5 | 45.2 | Denver, Col. | 82.6 | 58.7 | 83.6 | 58.8 | 74.7 | 50.2 | Lewiston, Idaho | 90.0 | 59.1 | 87.1 | 57.6 | 76.0 | 47.7 | New Haven, Conn. | 80.3 | 62.4 | 77.6 | 57.9 | 70.4 | 50.6 | Norfolk, Virginia. | 87.9 | 71.1 | 82.4 | 68.9 | 76.4 | 63.8 | Olympia, W. T. | 76.1 | 48.2 | 71.3 | 55.1 | 67.0 | 48.1 | Portland, Oregon. | 80.0 | 57.0 | 73.8 | 54.2 | 72.3 | 52.6 | San Diego, Cal. | 75.5 | 64.0 | 75.9 | 63.5 | 78.2 | 62.9 | Sandusky, Ohio | -- | -- | 77.1 | 62.8 | 69.2 | 55.8 | San Francisco, Cal. | 64.5 | 55.0 | 64.4 | 53.9 | 69.9 | 56.3 | Sitka, Alaska | 57.9 | 48.1 | 59.3 | 48.8 | 58.9 | 48.5 | Spokane Falls, W. T.| 85.0 | 53.4 | 83.2 | 72.5 | 72.4 | 44.2 | Washington City. | 87.7 | 67.2 | 82.4 | 62.7 | 74.8 | 56.2 | ====================+======+======+======+======+======+======+