of #eat ana €<rtD* $9 



EXPER. VL 



ANd it will be convenient to be- 

 gin with an inftance or two of 

 the Produftion of Heat , wherein 

 there appears not to intervene any 

 thing in the part of the Agent or 

 Patient but Local Motion, and the 

 natural Effe&s of it. And as to this 

 fort of Experiments, a little attenti- 

 on and refle&ion may make fome fa- 

 miliar Vhtinotmnon appofite to our 

 prefect purpofe. When, for ex- 

 ample, a Smith does haftily hamitoef 

 a Nail or fuch like piece of iron , the 

 hammer 'd metal will grow exceeding 

 hot, and yet there appears not any 

 thing to make it fo/ave the forcible 

 motion of the hammer which im~ 

 preffes a vehement and varioufly de- 

 ter mind agitation of the lmall parts 

 of the Iron 5 whiph being a cold 

 body before 5 by that fuperindue'd 

 commotion of its fmall parts «, be- 

 comes in divers fenfes hots firftina 

 E more 



