THE FURTHER GROWTH OF SCIENCE 115 



mankind, although the relationship between science and the 

 changing frame of mind was not always appreciated. The 

 pursuit of these implications has been greatly extended dur- 

 ing the last hundred years. Their first general extensions 

 occurred during the eighteenth century. 



In this regard, the eighteenth century closed in failure. 

 The first half of the nineteenth century was, in many re- 

 spects, stagnant and negative. Technically speaking, 

 science was making rapid progress, but its implications were 

 not comprehended, in what were regarded as non-scientific 

 fields. Mankind may never again witness such confident 

 predictions of an approaching Age of Reason as were made 

 during the later eighteenth century. The world may seem 

 to have been living ever since in a period of retrogression. 

 Yet science has done its work, and no future period of re- 

 action can bring back the habits of thought that existed 

 before the culmination of the Renaissance in this first cen- 

 tury of the Modern Period. 



