Natural and artificial conclusions. Compiled first in Latine, by the worthiest and best authors, both of the famous University of Padua in Italy, and divers other places. Englished since, and set forth by Thomas Hill, Londoner, whose own experiments in this kinde, were held most excellent. And now againe published, with a new addition of rarities, for the practise of sundry artificers; as also to recreate wits withall at vacant times