INTRODUCTION. 



THE failure of so many preceding Theories emanating from 

 distinguished authorities, and ushered into notice with such 

 sanguine expectations of their consistency, has induced a pre- 

 judice, almost insurmountable, even by those who possess the 

 most patient spirit of investigation ; and this naturally operates 

 as an impediment to the impartial examination of a subject of 

 GENERALIZATION, hitherto so barren of hope, and unprofitable 

 to Science, notwithstanding its acknowledged and paramount 

 importance. 



There are perhaps some considerations that may render the 

 present attempt, if not flattering to the projector, at least in- 

 noxious to others. First, that coming from the pen of one,* 

 except by his practical pursuits, little known to the scientific 

 world, no ill consequence in retarding the advance of Science, 

 in its regular legitimate course of experimental agency, can be 

 apprehended ; and secondly, that however erroneous may be 

 the principles now advocated, yet on their bare examination 

 (if deemed worthy of that trouble} something of benefit may 

 be by accident elicited (as our greatest discoveries are attri- 

 butable to adventitious causes), or perchance it may move the 

 master-mind of some eminent Philosopher]" to enlist in the 

 investigation, which may be productive of incalculable benefit. 



* " Preservation of Timber from Dry Rot." 



t Among the many eminent names to which I allude, both foreign and 

 native, I venture to mention one, whose name, pervading Europe, has been 

 received with that marked distinction so justly merited by a life of indefati- 

 gable zeal and undeviating perseverance in the promotion of Science PRO- 

 FESSOR FARADAY. 



B 



