Of that artificial site of houses I have sufficiently discoursed:  if the plan of the dwelling may not be altered, yet there is much in choice of such a chamber or room, in opportune opening and shutting of windows, excluding foreign air and winds, and walking abroad at convenient times. [3182]Crato, a German, commends east and south site (disallowing cold air and northern winds in this case, rainy weather and misty days), free from putrefaction, fens, bogs, and muck—­hills.  If the air be such, open no windows, come not abroad.  Montanus will have his patient not to [3183]stir at all, if the wind be big or tempestuous, as most part in March it is with us; or in cloudy, lowering, dark days, as in November, which we commonly call the black month; or stormy, let the wind stand how it will, consil. 27. and 30. he must not [3184]"open a casement in bad weather,” or in a boisterous season, consil. 299, he especially forbids us to open windows to a south wind.  The best sites for chamber windows, in my judgment, are north, east, south, and which is the worst, west.  Levinus Lemnius, lib. 3. cap. 3. de occult. nat. mir. attributes so much to air, and rectifying of wind and windows, that he holds it alone sufficient to make a man sick or well; to alter body and mind. [3185]"A clear air cheers up the spirits, exhilarates the mind; a thick, black, misty, tempestuous, contracts, overthrows.”  Great heed is therefore to be taken at what times we walk, how we place our windows, lights, and houses, how we let in or exclude this ambient air.  The Egyptians, to avoid immoderate heat, make their windows on the top of the house like chimneys, with two tunnels to draw a thorough air.  In Spain they commonly make great opposite windows without glass, still shutting those which are next to the sun:  so likewise in Turkey and Italy (Venice excepted, which brags of her stately glazed palaces) they use paper windows to like purpose; and lie, sub dio, in the top of their flat-roofed houses, so sleeping under the canopy of heaven.  In some parts of [3186]Italy they have windmills, to draw a cooling air out of hollow caves, and disperse the same through all the chambers of their palaces, to refresh them; as at Costoza, the house of Caesareo Trento, a gentleman of Vicenza, and elsewhere.  Many excellent means are invented to correct nature by art.  If none of these courses help, the best way is to make artificial air, which howsoever is profitable and good, still to be made hot and moist, and to be seasoned with sweet perfumes, [3187]pleasant and lightsome as it may be; to have roses, violets, and sweet-smelling flowers ever in their windows, posies in their hand.  Laurentius commends water-lilies, a vessel of warm water to evaporate in the room, which will make a more delightful perfume, if there be added orange-flowers, pills of citrons, rosemary, cloves, bays, rosewater, rose-vinegar, benzoin, laudanum, styrax, and such like gums, which make a