(i9»> 
Marty of them, keeping himfelf thereby difengaged from a- 
dopiing an Hypothecs, in which perhaps he is not fo through- 
ly fatisfied, and of which he does not conceive himfelf to be 
neceffitated to make ufe here; and accordingly forbearing 
to employ Arguments,that are either grounded on, or fuppofe 
Atoms , or any Innate Motion belonging to them ; or that the 
Eflence of Bodies confifts in Extennon 5 or that a Vacuum is 
impoffible j or that there are fuch Globuli Ceeleftes , or fuch a 
Materia Suhtilis , as the Cartefians imploy to explicate mo ft of 
the Phenomena of Nature. 
The Treatife confifting of a Speculative , and an Hijlorical 
part 5 the Author , with great modefty leaves the Reader to 
judge ; Whether in the Firjl part he hath treated of the Nature 
and Origins of Forms and facilities in a more Comprehenfive 
way* than others > Whether he has by fit Examples, and other 
means, rendred it more intelligible , than they have done : 
Whether he has added any conhderable number of Notions 
and Arguments towards the compleating and confirming of 
the propofed Hypothecs : Whether he has with reafon difmifTed 
Arguments unfit to be relied on; and Whether he has propo- 
fed fome Notions and Arguments fo warily , as to keep them 
from being liable to Exceptions and Evafions , whereto they 
were obnoxious, as others have propofed them. And , as to 
the Second and Hijlorical part, he is euclin d to believe/ that the 
Reader will grant, he hath done that part of Phyficks, he is trea- 
ting of 5 fome fervice, by ftrengthning the dotftrines of the 
New Philo [ophy fas ’tis call’d ) by fuch particular Experiments* 
whofe Nature and Novelty will render them as well Accepta- 
ble as In ft rudive. 
Th Qfumme of the Hypothecs, fully and clearly explicated in 
th t Firfi Part, is this ; 
That all Bodies are made of one Catholic \ matter, common to 
them all, and differ but in Shape , Sisp 9 Motion or Refi 9 and 
Texture of the fmall parts, they confift off; from which Affe- 
ctions 
