MORAL EFFECTS OF SCIENTIFIC PROGRESS. 309 



points of view, the chief force which has directed progress, 

 improved society, embellished man's life, shaped the modern 

 world. Such are its results. And if by the side of this 

 philosophical conclusion, the writer has in any degree 

 succeeded in conveying a pretty clear notion of the origin 

 and growth of science to the student of scientific history, 

 he will have contributed a spark to the present enlighten- 

 ment, and thus accomplished his humble task. 



