the figns of Ores and Minerals both before and after digging 5 
the Caules and Manner of their Generation^ their kinds and 
differences^ and a defcription of fundry new Metals^ or Serai- 
snetalSj as he caMs them 5 together with a difcourle of their 
Vegetabilityj and the Difciiffion of many difficult Queftions 
belonging to Chyroiilry* Colledt d out of the moft approv- 
ed Authors, that have written in Gieek, Larine, High-Dutch 
and Englifli : WithfoaieObfervatioDs and Difcoveries of his 
own» 
^iit in particular,^ he treaterh, 
Of the Excellency and Ufcfuhieis of the knowledgeof 
Minerals and Metals 5 and of the Antiquity of the melting, 
refining, and accommodating of them to humane Life; and 
the caufe of the non- proficiency of Metallick skill, efpecially 
here in EfrgUnd, 
2» Of the Authors5 that have written of this Subjeft ; A* 
mongw^qm he chiefly recommends -^^m^? /^3 Csfitlpnus^ Cs- 
fm^ Sarepta Mathefti^ Kentmannusy Lazarus Erk^r , Chrifto- 
phorns Eucelius^ Cajpar Schwenckfeldms^ Martinus Rulandus^ 
Baf, Valentmus^ Faracelfus^ "joh^ Bapt, van Helmonty ^erce^ 
taf3H5yMyIiHs,Beguims^SaU, Faber^Libavius^ 
J. Of the Generation of Metalsj and whether they grow 
Jike Vegetables : where the Caufes, affigned by the moft ap- 
proved Authors for their Generation.are taken notice of. 
4, Of the figns and Difcovery of Mines and Ores. 
5. Of the.Mid^erals, faid to have affinity to Metals, asthofe 
that are c^lVd €^dhimi£ (i,e^mperfe0£ met alii miners^ Mat' 
eh^fitesyl'irefioms. 
6,OlGold^?.xyd th'fe feveral forts of it^as they are produced by 
Nature,andin what manner they are ftverally found^as alio of 
theStoneSjRocksand Flints of Gold, and the (Irikiog paflages 
wherein 'tis found 5 together with fome wayes of beatiogi 
fiftirig and w afhiog the Ores thereof^C^A 
7* Of ^Si/Wrjapd the feveral wayes of getting the Ore sf 
it , as alfo of its Mines, Conditions^ and ftriking paflages: of 
Silver found pure by Nature 5 and ofthofe forts that mart be 
purified^ 
