rs) 



to break the Ice for any that may 

 hereafter think fit to fet upon fuch a 

 Work , or to (horten my own La- 

 bour, if I fhould fee caufe to refume 

 it my felfj I was content to throw in 

 among my Notes about other Parti- 

 cular Qualities , fome Experiments 

 and Obfervations about fome of 

 thofe^ that I have elfewhere calTd 

 Chymical Qualities y becaufe 'tis chief- 

 ly by the Operations of Chymifts, 

 that men have been induced to take 

 fpecial notice of them. Of thefe 

 Notes I have affigned to fome Qua- 

 lities more, and to fome fewer , as 

 either the nature or importance of 

 the Subjeft feemed to require, or 

 my Leifure and other Circumftan- 

 ces would permit. And though I 

 have not here handled the Subje&s 

 they belonged to ? as if I intended 

 fuch a Chymia Philofophica as I late- 

 ly mentioned , becaufe my defign 

 did not make it neceflary , but did 

 perhaps make it impertinent for me 

 to do fo P yet in fome of the larger 



Notes 



