(¥$y 
Fifil lUjm ) Pearls , Corals , Marble , Alablafer, Emery ; To whidi 
he adds the various kinds of Coals. 5 as alfo Bitumens , 
and Jets. And thirty of the various kinds of Allnm, Vitriol 
Niter, Sc a- fait, PH -fait. But fourthly of the various. Earths, of 
which he reckons up 15. peculiar forts (Tefides thofe that 
lerve for Husbandry, which are not eafily numbrcd 3 ) and 
amongft them Read-had, Flacflead and Fit Hers -earth. 
He concludes all with mentioning the (everal Meteors ap- 
pearing in England 5 and the Hot Springs, and Medical Waters 5 
as alia, the Safin, Petrifying, and fome more unufual Springs : 
Item, Subterraneous Trees, Subterraneous Rivers , Fbbings and 
Flowings of Wells, &~c. 
II. .PL AC IT A PHILOSOPHIC A Guarini. The chief fubjeft 
of this Treadle is Natural Phiiofiphy 3 upon many important 
queftions whereof it inlargeth, as thole of the Motion 'of the 
Ccleftial Bodies, of Light;, of Meteors, and of the vital and 
-animal functions 5 leaving fometimes the common opinions, 
and delighting in the defence of Paradoxes. 
E«G. That the material fubftaatial Form , is nothing but 
mera potentia, and fubfifts not by it felf: by which means the 
Author judges, he can free himfelf from many great difficulties 
touching Generation and Corruption, which do perplex the other 
Philosophers, 
He holds Epicycles to be impoffible,. and Executrices , not fuf* 
ficient to explicate the motion of the Stars 3 but that all the 
irregularities of this motion may be falved by the means of 
certain spiral Lines 3 largely proving this Hypo thefts, and par- 
ticularly explicating the motion of each Planet. 
He denies the middle Region of the Air to be cold 3 and 
believes that cold is not eeceiiaty to condenfe the vapours into 
Water. 
He admits not that received Axiome, That the generation of 
one Body is the. corruption of another • maintaining that there 
are Generations,, to wnich no corruption ever preceedcd 3 and 
that it may happen, that one Animal without dying may be 
changed into another Animal. 
He alledges feveral reafons to evince, that the Air breathed 
in, enters not only into the whole cat achy of the Cheft, but alia 
into the lower bell y. " 
