IDENTICAL CHANGES 



found that displacement of material which is the 

 real source of power, and in the last instance it is 

 ever a crowding of material particles for room. If 

 it be possible, let it be otherwise, and let that which 

 gives the power be an attraction of one material 

 for another, such as magnetism is often deemed 

 to be. (Hypothesis.) 



Then, because the force is an attraction be- 

 tween the magnet and the armature, the interven- 

 ing material has nothing to do with it. (Hypothe- 

 sis.) 



But that is impossible. (Axiom 2. Prop. XI, 

 B. 1.) And because the magnet attracts without 

 being itself altered, therefore the force is inherent 

 in the magnet. (Hypothesis.) Then we can, with 

 the aid of one magnet, make an unlimited amount 

 of inherent attraction in material that does not yet 

 possess it (tempered steel). (Hypothesis.) Where 

 then, is the attraction, now, that with a few strokes 

 of the magnet may be imparted to any jackknife? 



This attraction of the magnet or any other at- 

 traction or drawing or contraction is apparent 

 only, something somewhere must press and push; 

 otherwise, that attraction is an occult attraction, 

 outside of human reasoning and observation. 



Therefore, the very word, " attraction, " is mis- 

 chievous and misleading, and in the investigation 

 of any manifestation of force that material, which 

 by expanding is made to require more room, ought 

 to be considered. And, somewhere back of every 

 force is such material, and back of that material 



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