STUDIES 



SCIENTIFIC W SOCIAL 



i 



BY 



ALFRED RUSSEL WALLACE 



LL.D., D.C.L., F.R.S., ETC. 



IN TWO VOLUMES.— VOLUME I 



W/T/I NUMERO US ILL USTRA TIONS 



ILontion 

 MACMILLAN AND CO, Limited 



NEW YORK: THE MACMILLAN COMPANY 

 1900 



All rights reserved 



