CENTUIIY I IT. 147 



Experiment solitary touching the incorporation of 

 powders and liguors. 



298. Most powders grow more close and coherent 

 by mixture of water, than by mixture of oil, though 

 oil be the thicker body ; as meal, &c. The reason 

 is the congruity of bodies ; which if it be more, 

 maketh a perfecter imbibition and incorporation ; 

 which in most powders is more between them and 

 water, than between them and oil : but painters 

 colours ground, and ashes, do better incorporate 

 with oil. 



Experiment solitary touching exercise of the body. 



299. Much motion and exercise is good for some 

 bodies ; and sitting and less motion for others. If 

 the body be hot and void of superfluous moistures, 

 too much motion hurteth : and it is an error in phy 

 sicians, to call too much upon exercise. Likewise 

 men ought to beware, that they use not exercise 

 and a spare diet both : but if much exercise, then 

 a plentiful diet ; and if sparing diet, then little exer 

 cise. The benefits that come of exercise are, first, 

 that it sendeth nourishment into the parts more 

 forcibly. Secondly, that it helpeth to excern by 

 sweat, and so maketh the parts assimilate the more 

 perfectly. Thirdly, that it maketh the substance of 

 the body more solid and compact, and so less apt 

 to be consumed and depredated by the spirits. The 

 evils that come of exercise are, first, that it maketh 

 the spirits more hot and predatory. Secondly, that 



