D E D I C A T I O N .

remaining [in private hands], the Enthusiasts original: Liefhebbers; in the 17th century, this referred to "amateurs" or "lovers" of a science who pursued it for knowledge rather than just a trade have no opportunity to obtain [them]. Since I then had sufficient reasons, both through My Lord referring to the dedicatee, Dr. Roman and several other encouragements, to publish this Work, I was advised—being abundantly convinced both by the honor of your conversation and other sufficient experiences of the respect and love which Your Honor original: U. E. or Uwe Edelheid; a formal honorific bears for Chemistry original: Chimie; being at the same time assured of the thorough practice which [you] for several years at the University of Leiden as elsewhere had in the same...