CENTURY I. 47 



cold to the tongue than a stone ; so water is colder 

 than oil, because it hath a quicker spirit : for all oil, 

 though it hath the tangible parts better digested than 

 water, yet hath it a duller spirit : so snow is colder 

 than water because it hath more spirit within it: so 

 we see that salt put to ice, as in the producing of 

 artificial ice, increaseth the activity of cold : so some 

 &quot; insecta,&quot; which have spirit of life, as snakes and 

 silk-worms, are to the touch cold : so quicksilver is 

 the coldest of metals, because it is fullest of spirit. 



7&amp;lt;L The sixth cause of cold is the chasing and 

 driving away of spirits such as have some degree of 

 heat : for the banishing of the heat must needs leave 

 any body cold. This we see in the operation of 

 opium and stupefactives upon the spirits of living 

 creatures : and it were not amiss to try opium, by 

 laying it upon the top of a weather-glass, to see 

 whether it will contract the air : but I doubt it will 

 not succeed ; for besides that the virtue of opium 

 will hardly penetrate through such a body as glass, 

 I conceive that opium, and the like, make the 

 spirits fly rather by malignity, than by cold. 



75. Seventhly, the same effect must follow upon 

 the exhaling or drawing out of the warm spirits, 

 that doth upon the flight of the spirits. There is an 

 opinion, that the moon is magnetical of heat, as the 

 sun is of cold and moisture : it were not amiss there 

 fore to try it, with warm waters ; the one exposed 

 to the beams of the moon, the other with some 

 skreen betwixt the beams of the moon and the 

 water, as we use to the sun for shade : and to see 





