LECTURES 



ON 



THE PRINCIPLE OF SYMMETRY 



AND 



ITS APPLICATIONS IN ALL 

 NATURAL SCIENCES 



\\\ 



F. M. JAEGER, Ph. D. 



PROFESSOR OF INORGANIC AND PHYSICAL CHEMISTRY 

 IN THE UNIVERSITY OF GRONINGEN, HOLLAND. 



WITH 170 DIAGRAMS. 



'UBLISHING COMPANY ,,ELSEVIER" - AMSTERDAM -- 1917. 



ALL RIGHTS RESERVED. 



