PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES. 



Third Series. 

 Math.-Physics. Vol. I, No. 4. 



Systems of Simple Groups derived from 

 the Orthogonal Group. 



BY 



Leonard E. Dickson, Ph. D., 



Instructor in Mathematics, University of California. 



Issued March /6, 1898. 



SAN FRANCISCO: 



Published by the Academy. 



1898. 



