154 THE HISTORY OF SCIENCE 



cobalt, copper, silicon, phosphorus, carbon, magne- 

 sium, zinc, and manganese. 



REFERENCES 



G. F. Becker, Kant as a Natural Philosopher, American Jour- 

 nal of Science, vol. v (1898), pp. 97-112. 



W. W. Bryant, A History of Astronomy. 



Agnes M. Clerke, History of Astronomy during the Nineteenth 

 Century. 



Agnes M. Clerke, The Herschels and Modern Astronomy. 



Sir William Herschel, Papers on the Construction of the 

 Heavens (Philosophical Transactions, 1784, 1811, etc.). 



A. R. Hinks, Astronomy (Home University Library). 



E. W. Maunders, The Science of the Stars (The People's Books). 



