MicrRoOGRAPHIA, 
#4; bie backwards.and fide-ways, atid eins indéed mitich rather t6 be 
saleitias ot fimilat t6 thofe pores, whith we may with great proba. 
tie Believe Oa be the ee of fa fei bodiés; not direedo more 
Open any One way, then ary other, be étjitally pervious every way, 
ek ay one Was as thete sobs are iaete Be sréater in fefpee of the 
terftitial bodies, the more tranfparent are the fo conftitutéd -conctétes; 
did the fridller thofe pores are, the weaktr is thé Dpulf of light com- 
miihicated throtigh ther; though the moré quick be the progrel& 
~ Upon this Occafién, Thope it Will rot be altogether unfeafonable; iff 
und ny conjectures and Hypothefis dbout the medinim and doit 
nce of light. 
Vefane fe then, Hat the gteatett part of thie interftitia of the world; 
that lies Between the bodies of the Stiri and Stats and the Platiets; and 
the Earth, to be an exceeding fluid body, very apt and ready to be 
Thov'’t snd t6 committhicate the motion Of any one part to any othet part, 
though never x fat diftant : Nor do I much coticetn myfelf, to deter: 
file 3 be Si uré of the particles of this exceedingly fibtile fluid 
medium th or whether it have ally interftitiated pores or vacui- 
aa fader folvé all the Phasomens to fuppote it an exceeds, 
id; Ot the inoft fluid body inthe world; and as yet ithpoflible to 
palit ‘the other difficulties. 
‘That being 10 exceeding Haid’ bady;it eafily gives pall to all other 
Bodies to Hove to and froin it. 
‘That ic Neither receives from aly Ofits parts, Ot from otter badiess 
nor communicates to any of its pai or to any other body, any impulfe, 
Seep ation t in a direct line, that is ‘Not Of a determinate qui ‘iene And 
en the m0 on is of fuch determinate {wifthels, it both receives, 
in en as 
‘That qx reheddleda ads 
ect of the patti OF ce fu bidilin Which in many placesdo fd 
ouch each orher,that none OF chis fluid week initerpoles much after 
ang manner (to ufe 4 grofs fimilitude) as4heap of ee ftones compa 
cat congeries or mafs in themidftofthe water. ~ 
aoa uid Bodies which we may call ¥angible, ave néchitig Bi Sine 
fubtile parts <  thofe particles, ‘hai ferve to conftiture‘all be 
“The the wer “ana ich ec frit: badiés, are atid bea 
Coneeriés 0 ‘etek g at Oh ‘the fame manner @& 
‘ees ticles of Sale'at srt ae a parcel of watery in 
Which are 'diffdlv’d, and th ttom ‘of it; conftitute 2 
ee ‘e ftich ‘move . dels ftid'eien ‘the sure 
€r 
Phat the ar inate anil 
ues Kod, hd ich OWE nap of pare = | 
Hoveabieb Siytice fot ‘fhtich fence pit. 
tile parts of Cache aRPoaie eee ; Mi tebh les weacbeawee avery 
