tenfive Gravity Yor, as fome call it, the Speclfick Gravity) 
of the Medmm. 
A vilcous Medium fliall more refift, than one more fli>? 
id, though of like Intenfive Gravity. 
And a fliarp Arrow fliaU bore his wav more eafily 
through the Medium^ than a blunt headed Bolt, thouga 
of equal weighty and like intenfive Gravity. 
And the fame Pyraraide with the Point, than with the 
Bafe forward. 
And many other like varieties, intended in my ^ 45. 
But this I think may be admitted, namely, That dijp-^ 
ferent Mediums^ equally hquid, / and other circumftances 
alike, ^ do in fuch proportion refift, as is their Intenfive 
Gravity. Becaufe there is, in fuch Proportion, a heavi- 
er pbjeft to be removed, by the fame Force, Which is 
oheofthethih^ t 
And again: The'hea^^r Projeft oncein motion, f be- 
ing equally fwift, and all other circumftances alike/ moves 
through the fame Medium m fuch proportion moreftrong- 
ly, as is its Intenfive Gravity. For now the Force is in 
fuch proportion jgteater, fipr the removal of the fame vq^ 
fiftance. Md tms part ofwhat myi[ ?2.infinuates. -^f 
' But where there is a complication of thefe confideratt- 
ons one with another, and. ^ith many other circumftan- 
ces whereof each is feverally to be confidered; there mufl 
be refpe£t had to all of th^mj. ri^^l 
» 
Tart 
