IN THE LAST HALF- CENTURY. 23 



cost, microscopes, telescopes, and all the 

 exquisitely delicate apparatus for deter- 

 mining weight and measure and for esti- 

 mating the lapse of time with exactness, 

 which they now command. If science has 

 rendered the colossal development of mod- 

 ern industry possible, beyond a doubt in- 

 dustry has done no less for modern phys- 

 ics and chemistry, and for a great deal of 

 modern biology. And as the captains of 

 industry have, at last, begun to be aware 

 that the condition of success in that war- 

 fare, under the forms of peace, which is 

 known as industrial competition lies in 

 the discipline of the troops and the use of 

 arms of precision, just as much as it does 

 in the warfare which is called war, their 

 demand for that discipline, which is tech- 

 nical education, is reacting upon science 

 in a manner which will, assuredly, stimu- 

 late its future growth to an incalculable 

 extent. It has become obvious that the 

 interests of science and of industry are 



