PHYSICS AND PHILOSOPHY 319 



he became too shy to take the metals from me 

 but he proposed to provide a substitute which he 

 did. As the work progressed it became more 

 and more difficult to find subjects, until finally 

 after every floor of the factory had been ex- 

 hausted a man was found in the wheel pit who 

 hadn't heard of the game. When he was 

 brought in there was nothing doing on the floor 

 though every man seemed to be busy, but all had 

 a spare eye for the experiment. When I drew 

 the wire across the file the man fell to the floor 

 and until his recovery a moment later I felt as 

 Cain should have felt after smiting his brother 

 Abel. 



It was not all scientific study that held me to 

 the place. Art, literature, and philosophy were 

 there in a single family whose presence had done 

 much to attract us to that particular town and 

 there were Sundays of mountain climbing, for- 

 est wandering, geologizing, and botanizing, for 

 "The groves were God's first temples," as our 

 gentle leader was fond of quoting. We took to 

 the fields and the forests on the slightest provo- 



