of #eat anfc Colo> 93 



EXPER. XXIIL 



WE took a good lump of com- 

 mon Sulphur of a conveni- 

 ent (tiape^ and having rub'd or chaf'd 

 it well, we found, as we expected* 

 that by this attrition it grew fen- 

 fibly warm 3 and , That there was 

 an inteftine agitation D which you 

 know is Local Motion^ made by this 

 attrition ^ did appear not onely by 

 the newly mentioned Heat, whofe 

 nature confifts in motion, and by the 

 antecedent preffure 5 which was fit 

 to put the parts into a diforderly vi* 

 bration^ but alfo by the fulphureous 

 fleams, which 'twas eafie tofmell by 

 holding the Sulphur to ones nofe 5 as 

 foon as it had been rub'd. Which 

 Experiment 3 though it may ketn 

 trivial in itfelf, may be worth the 

 consideration of thofe Chymifts, 

 who would derive all the Fire and 

 Heat we meet with in fublunary bo- 

 dies from Sulphur. For in our cafe 

 G 2 a 



