Cm) 
dions tnade therein, by the vertue of Salt and its Auxilia- 
ries, the differences whereof are largely difcourfed of, to* 
gather with the way of extrading the fame. In particular 
o £. Saltpeter, its Generation Nature, Vertues? of the way 
of making Gunpowder, and the various ufes thereof 5 as alio 
the Nature, Qualities, Preparation, Medical and other ufes 
of Alume and Vitriol. 
lot hzfeventh : Of fom eFoffils, as Sand, Gravel, Earths, 
and their various Differences, Qualities, ufes Economical, 
Ghymical, Medical .’ together with theftrange varieties and 
changes happening in the Earth, and their caufes* as alfo 
the requifits to Agriculture , 
In the eighth : Firft, of Stones % their Origine, Concretion, 
difference of Colours , and in particular, of Qems and 
their variety, caufes of generation, tranfparency in fome 
and colours in others 5 as alfo of their various Figures and 
Pidures, by Nature formed both in common and precious 
Stones, with their Caufes. Secondly, of the Transformation 
of Juices, Salts, Plants, yea of Beafts and Men turn’d into 
Stone *. together with the generation of Bony Subftances 
under Ground, by many efteemed to be the Bones of Gy ants 5 
and of Horny Subftances, taken for Vnicorm horns : as alfo 
of Foffile wood and Coals. Thirdly, of Bituminous Flowers^ 
lapis Asbejlos, timber, and its Ele&rical vertue 3 together 
with the way how Infeds, little Fifhes, and Plants are In. 
tombed therein. Fourthly, of Subterraneous Animals , 
Moles, Mice, Birds, Dragons , where is alfo treated, of thofe 
Animals that are found in the midft of Stones. 
In the ninth ; Firft, of Poyfons, their primeval Origine 
from Minerals, and their accidental Generation in Vege- 
table and Animal Bodies, together with their differences , 
where kis difcourfed, not onely how Poyfons may be bred 
in Men, but alfo, how the Poyfons of fome Animals do in- 
Sed and kill Men 5 and, where the Venom of Vipers lodges, 
and how mad Dogs and Tarantulas fo communicate their 
Poyfon, as that it exferts not its noxioufnefs, till after fome 
Q. time ? 
