186 T. Lyman on Forces. 
space? The force of attraction. What keeps it from rushi 
towards the sun he centrifugal force. 
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scious. The will, itself immaterial, works either on the fa ee 
body, or on the immaterial mind. When the body is 
healthy the will has direct control over the voluntary a the 
but none over the involuntary. On the other hand, W. the 
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ode, one after another, but probably this will not he ed 
again. A variable sequence, then, is the fact that y a 
but will not, of necessity, do so again. : ‘ng, which, 8 
~ We may, in the outer world, see a particular thing, ther pa 
far as our experience goes, is always followed by an° 4 
a ee ised Ree age a LS ra 
