

^HE PRINCIPLES OF SCIENCE. 



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the x^rinexion of cause and effect is one of direct pro- 

 portion. Bacon reminds us of the woman in JEsop's 

 fable, who expected that her hen, with a double measure 

 of barley, would lay two eggs a day instead of one, 

 whereas it thereby grew fat, and ceased to lay any 

 eggs at all. 



