FIFTY YEARS OF AMERICAN SCIENCE 23 



half century, raising the repubhc from an experiment in 

 state making to a leading place among the nations, is the 

 wonder of history; the thrice trebled wealth and educational 

 facilities gained through application of new knowledge are 

 a marvel, before which most men stand dazzled at home, 

 and wholly blinded abroad; the three times thrice trebled 

 knowledge itself, lifting the nation high in enlightenment 

 and making way for still more rapid progress, is a modern 

 miracle \\Tought by scientific work; but greatest of all in 

 present potency and future promise is the elevation of moral 

 character attained by that sense of right thinking which flows 

 only from consciousl}'' assimilated experience — and this is the 

 essence of science now diffused among our people. 



