Rensselaer Union, Volume 2, Number 49, Rensselaer, Jasper County, 1 September 1870 — Experiments About Heat. [ARTICLE]

Experiments About Heat.

The Providence Journal following interesting results of some experi mints made in that city recently at 3 o’clock with an excellent glass-mounted thermometer: In the house with open windowsit stood at 90.5°. Out of doors in the shade at 95° —freely suspended in the sun six feet above the green sward 99 s°. In thd same position with wet bulb 78 B°—with bulb covered with white cloth 995°—with bulb covered with silk 109 96°. When laid upon the grass in the sun it rose to 104°. Laid upon white cloth, placed upon the grass, 105°—and when similarly placed upon silk it indicated 113°. The experiments with different colored coverings show very conclusively the utility of light-colored clothtog for those who are obliged to be exposed to the direct rays of the eun at high temperatures—and the experiment with the wet bulb shows aa clearly the value of free perspiration in keeping down the temperature of the body, which, however, the observer finds in his own person, notwithstanding the perspiration while making these «x----periments, to have risen to 100.5°—which is about two degrees above the usual standard for cooler days, The average temperature of the healthy human body throughout the year, in temperate climates, is 98.4°—while in tropical regions it is about one degree higher.