EXAMPLES OF THE EXPLANATION OF LAWS. 541 



admitting of proof, in the first instance, but assumed as pre- 

 mises for the purpose of deducing from them the known laws 

 of concrete phenomena. But this, though their initial, cannot 

 be their final state. To entitle an hypothesis to be received as 

 one of the truths of nature, and not as a mere technical help 

 to the human faculties, it must be capable of being tested by 

 the canons of legitimate induction, and must actually have 

 been submitted to that test. When this shall have been done, 

 and done successfully, premises will have been obtained from 

 which all the other propositions of the science will thenceforth 

 be presented as conclusions, and the science will, by means of 

 a new and unexpected Induction, be rendered Deductive. 



END OF VOL. I. 



