PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES. 



Third Series. 

 Math.-Phys. Vol. I, No. 5. 



Systems of Simple Groups derived from 

 the Orthogonal Group. 



(Second Paper.) 



BY 



Leonard Eugene Dickson, Ph. D., 



Instructor in Mathematics, University of California. 



Issued November 25, r8gg. 



SAN FRANCISCO: 



Published by the Academy. 



1899. 



