The Epiftle Dedicatory. 
inclineiTeu to thehve of all Learm hut more particularly 
of this^ the rnoH wort hyper haps cf all humane Sciences^^^^^ as 
that antkntly ^;7?o;7g/? t^e Egyptians, Chald^^ 
is^c. Many of their Kings have gloried more in the knowledge of 
this Art^ than in the lujlre cf their Diadems/uch were Hermesr 
Trefmegiftus, Morienus, Calib, Alphonfo King of Por- 
tugal, is^c. and although the ignorance and Thrafonick hoafi- 
ingof PfeudochymifiSy have almofl brought it into contempt in 
this Age ^ yet it is a mojl undoubted truths That Paracelfus 
Van Eelmonty and many others^ havebeen able to conquer all 
Difeafes GaUenical Phjfitians now caUincurable^ and that' 
with great facility I inejfe^y true Philofophers have not only- 
had Vniverfal Medicines for Humane^ but Metallic^ bodies ^ 
alfo J infomuch that the Cliryfopasan Art is faidfo to have 
flourifljed in Egypt, about the year 294. that the mighty 
Emperor Ty\oc\eCizn could never conquer that people by force 
till he hadby Stratagem in time of peace poffejl himfelf of the 
Books -> together mth the Artificers^ and by that means fub-- 
jt^ed them to hi^ Empire. But Mr. Denis's Letter gives me: 
onely opportunity at prefent to expofe fome few Fhyfical ohferva^^ 
- thns^ tending to health and prolongation of life^ both which ^ , 
with 
