THE CENTURY'S PROGRESS IX CHEMISTRY 



the Daltonian atom as a primordial bit of matter, inde- 

 structible and non-transmutable, had been put to the 

 test by the chemistry of our century, and not found 

 wanting. Since those early clays of the century when 

 the electric battery performed its miracles and seeming- 

 ly reached its limitations in the hands of Davy, many 



ROBERT WILLIAM BUNSEN 



new elementary substances have been discovered, but no 

 single element has been displaced from its position as an 

 undecomposable body. Rather have the analyses of the 



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