266 NATURAL HISTORY 



new air, and moved, added to the old air, shaketh the 

 whole, and sets it into motion ; as we may perceive by a 

 little wind that comes forth of a pair of bellows, or in at a 

 little crevice of a window or wall, that will set all the air 

 which is in a room in motion, as appears by the blazing of 

 the lights which are in the same room. 



24. As dews and mists are engendered here in the lower 

 air, never coming to be clouds, nor penetrating to the 

 middle region of the air : in the like manner are also many 

 winds. 



25. A continual gale blows about the sea, and other 

 waters, which is nothing but a small wind newly made up. 



26. The rainbow, which is as it were the lowest of me 

 teors, and nearest to us, when it doth not appear whole, 

 but curtailed, and as it were only some pieces of the horns 

 of it, is dissolved into winds, as often, or rather oftener than 

 into rain. 



27. It hath been observed, that there are some winds in 

 countries which are divided and separated by hills, which 

 ordinarily blow on the one side of the hills, and do not 

 reach to the other, whereby it manifestly appears that they 

 are engendered below the height of the said hills. 



28. There are an infinite sort of winds that blow in fair 

 and clear days, and also in countries where it never rains, 

 which are engendered where they blow, and never were 

 clouds, nor did ever ascend into the middle region of the 

 air. 



Indirect experiments. 



Whosoever shall know how easily a vapour is dissolved 

 into air, and how great a quantity of vapours there are, 

 and how much room a drop of water turned into air takes 

 up more than it did before (as we said already), and how 

 little the air will endure to be thrust up together, will ques 

 tionless affirm, that of necessity winds must be every where 

 engendered, from the very superficies of the earth, even to 

 the highest parts of the air. For it cannot be, that a great 

 abundance of vapours, when they begin to be dilatated and 

 expanded, can be lifted up to the middle region of the air, 

 without an overburthening of the air, and making a noise 

 by the way. 



Accidental Generations of Winds. 



To the ninth article. Connexion. 



We call those accidental generations of winds which do 

 not make or beget the impulsive motion of winds, but with 

 compression do sharpen it, by repercussion turn it, by sinua- 



