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PHYSICAL ann LITERARY. 119 
- Ved to one fide, by the difference of the two 
forces. Thus, every part of a ftagnating fluid 
jis preffed equally in every direction. But if 
a body actively tend to one fide, it cannot a- 
Gtively tend to the other at the fame time, 
eet 
bed oe 
that being a contradiction in terms. And in 
fact, we fhall find it impoffible, to make 
two fuch efforts in our own bodies, to move 
them wholly to two oppofite fides. This be- 
ing granted, it follows, that if the waters of 
the fea gravitate towards the earth by an a- 
tive force, they cannot, at the fame time, 
gravitate by their own activity towards the 
moon, fo as to produce the tides. And there-_ 
fore, the gravitation in one oF both cafes, is 
owing to an external influence. The fame 
argument, if it {hall be found conclufive, 
may be applied to the attraction of the moon 
towards the earth and fun, in the conjuncti- 
ons, and other fuch like cafes. The attra- 
Etions betwixt fmall corpu(cles, will be fhown 
to proceed from an external caufe, in the 
fame manner. And hence it will follow, 
that elafticity and the chymical effervefcen- 
cies, are not the refult of the activity of at- 
‘traGting particles, And for the fame reafon 
a body thrown upwards, cannot move up by 
C an 
