Rensselaer Union, Volume 7, Number 44, Rensselaer, Jasper County, 22 July 1875 — How Thunder Showers Come Up. [ARTICLE]

How Thunder Showers Come Up.

In order to convey a more definite idea of our theory we will choose a certain locality which may serve the purpose of a diagram to our demonstration; and this locality shall be the region of West River. This river takes its rise among the forests near the summit of the Green Mountains, at a height of some 2,000 feet above the level of the sea, and, flowing southerly forty or fifty miles, empties into the Connecticut River about ten miles from the southern boundary of the State. During a hot summer day the sides of the deep valley of this river reek with intense heat, ana cause a flow of moist air upward toward the summit of the mountain ridge, from the valley of the Connecticut ana also from the sea. This moist air, meeting with the general current from the southwest, piles up an immense mass of cumulous clouds of many square miles in extent. So long as the intense heat prevails this cloud increases in size; grows blacker with its danse vapor, and casts a gloomy, lurid glare over the face of nature, darker than that of any eclipse. The vapor, pushed by the ascending currents of heated air, attains to a great height above the sea, where the tempera ture is very low. But finally, at that hour of the afternoon when the heat begins to decline, the accumulated vapors, no longer augmented or sustained by heated air from the vallftys below, fall in rain.— Popular Science Monthly for July. When does ahiwyer work like a horse? When he drawra conveyance