A. No; not instantly. Air is so bad a conductor, _that it parts with its heat very slowly_: unless, therefore, the air be kept in _continual motion_, it would _cool the broth very slowly indeed_. Q. _Why does WIND generally feel COOL?_ A. Wind is only air in motion; and the more quickly the _air passes over our body_, the more rapidly it _absorbs the heat_ therefrom. Q. _Why does AIR ABSORB heat more QUICKLY by being set in MOTION?_ A. Because every fresh gust of air _absorbs a fresh portion of heat_; and the more rapid the _succession of gusts_, the greater will be the quantity of air absorbed. Q. _If the AIR were HOTTER than our body, would the WIND feel COOL?_ A. No; if the air were _hotter than our body_, it would feel _insufferably hot_. Q. _Why would the AIR feel INTENSELY HOT, if it were WARMER than our BLOOD?_ A. Because then the wind would _add to the heat of_ our body, instead of _diminishing it_. Q. _Is the AIR EVER as HOT as the human BODY?_ A. Not in _this_ country: in the hottest summer's day, the air is always 10 or 12 _degrees cooler than the human body_. Q. _Is the EARTH a GOOD CONDUCTOR of heat?_ A. No; the power of _conducting_ heat depends upon the _continuity of matter_; if the particles of which a thing is composed are not _continuous_, they have very little power to _conduct heat_. Q. _Why is the earth (BELOW the SURFACE) WARMER in WINTER than the surface itself?_ A. Because the earth is a _bad conductor of heat_; and, therefore (although the ground be frozen) the frost never penetrates _above an inch or two below the surface_. Q. _Why is the earth (BELOW the SURFACE) COOLER in SUMMER than the surface itself?_ A. Because the earth is a _bad conductor of heat_; and, therefore, (although the surface be scorched with the burning sun) the intense heat cannot penetrate to _the roots_ of the plants and trees. Q. _Shew the WISDOM of GOD in making the EARTH a BAD CONDUCTOR._ A. If the _heat and cold could penetrate the earth_ (as freely as the heat of a fire penetrates iron), the springs would be dried up in summer and frozen in winter, and all vegetation would perish. Q. _Why is WATER from a SPRING so COOL in SUMMER?_ A. As the earth is a _bad conductor_, the burning rays of the sun can penetrate only a few inches below the surface; in consequence of which, the _springs of water are not affected_. Q. _Why is it COOL under a SHADY tree in a hot summer's day?_ A. 1st--Because the overhanging foliage _screens off the rays of the sun_: 2ndly--As the rays of the sun are warded off, _the air_ (beneath the tree) _is not heated by the reflection of the earth_: and 3rdly--The leaves of trees, being _non-conductors_, allow no heat to penetrate through them. Q. _Why do the LAPLANDERS wear SKINS, with the FUR INWARDS?_