( i\6z ) 
'Tis a common faying,That a Spunge will fuck up a'great 
deal of Water 3 but 1 am not of that opinion, but rather 
conceive that the "Water by the Pre0ure of the Air is forced 
up between the fmall concatinated parts of which the 
Spunge ccnfifts 5 for if you put a dry Spunge into Water, 
Tome part of it will prefently fink, that is to fay, the Wa- 
ter will flow into the fmall Vacuities of thofe parts that 
arcalways linked together 5 for fyppofing that the Water 
that is covei**d by the Spunge is not lyable 10 fo great a 
i-'reffure of the Air as that Water that is open to ir, (becaufc 
the Air muft lofe a great deal of its weight before it can 
pafs through the manifold Particles of the Spunge,) the 
parts of die Water lying r^Hind about the Spunge are con- 
lequently expofed to a greater Preffurc, and by that means 
forced up into the parts of the Spunge where tlie Re- 
fiftance is lefs. 
Now that the Water which is moft prtffed fhould force 
up tiiat that is leaff, is what we daily rir.d by experience 5 
for if we cart our Eyes upon a Glafs that is filled with 
Wine or Water, we (hall always fee that the Water will 
rife a little higher about the Edges than in the middle, 
becaufe the Air that prefles upon the Circumference of 
the Water, meets with greater Refiftance than that which 
prefles in the middle, as we have faid before. 
Bin if any one has a mind to be better convinced of 
the lilt Propofition, let faim take a Glafs Tube about 
rhe bignefs of a Hens QjjH or fomething (lenderer, and - 
only put it into Wnter, and he will find that the Wa- 
ter in the Tube v/ill rife higher-- than the Surface of the 
Water without y the rcafon of- which is, that the Prefigure 
of the Air ?jpqn rhe Water that is within tne Tube, is 
Tioi fo ftrong as the Preffune upon the Water without. - 
far- my^ farther PMisf-k&mn toncerning Spunges, I took 
a fnSrii- piece ^of' Spuffge^-lirttt' with my Sci:iars^cut it into 
'2 pieces^ and ^utoni^ei-ilfQ^^p^^^ 
