A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . precipitation for Manitoba is inches, but ofthis inches falls in the six months fi-om April 1stto October 1st. The mean relative humidity is aboutseventy-five per cent. The wind velocity is very con-siderable, averaging about eleven miles per hour, theprevailing direction being from the north and northwest. The most notable features, then, of the climate of tliisregion are the gieat extremes of temperature, the greatdaily and monthly ranges, and the exce
A Reference handbook of the medical sciences embracing the entire range of scientific and practical medicine and allied science . precipitation for Manitoba is inches, but ofthis inches falls in the six months fi-om April 1stto October 1st. The mean relative humidity is aboutseventy-five per cent. The wind velocity is very con-siderable, averaging about eleven miles per hour, theprevailing direction being from the north and northwest. The most notable features, then, of the climate of tliisregion are the gieat extremes of temperature, the greatdaily and monthly ranges, and the excessive cold of win-ter. From the fact, however, that spring lapidly ad-vances during the latter part of April, and that the daytemperatures in sumiuer aie high, with a gooil tleal ofsunshine, the wheat matures quickly. There is no mal-aria, and, as has been said, the climate is a wholesomeone for the robust, and immigration is rapidly filling upthis great fertile region. Edward 0. Otis. WINTERGREEN.—(CJfli/^CAma; Checkerberry ; Box-berry; Partridge-berry; Tea-berry, etc.)The dried leaves of Gaultlieria procumbens L. ( Fig. 5037.—Wintergreen; Leaves and Berries. (Baillon.) Ericacaf). This plant is a little evergreen slender, weak, creeping or subterranean stems, and Gaultheria is a native of North America, growing indry woods and plains. It is in many parts of the UnitedStates very abundant, carpeting the ground under treesand bushes, and is collected in hiige quantities both foruse, dried, and for immediate distillation. All parts arearoiiialic, the leaves and stems astringent as well, andowe their value to an essential oil (Oleum Gaultheria,U. S. P.) of birch like flavor, consisting mostly of methylsalicylate, with about one-tenth of a peculiar hydrocar-bon, gaultherileiie. Oil of wintergreen is a colorless,yellow or reddish liquid (according to age), of a peculiarstrong and aroiuatie odor, a sweetish, waim. and aroma-tic taste, and a slightly acid reac
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