YT< >[.(»(; KM. STUDIKS < >X ( KKKALS AND TIIKIK HYBRIDS. 



Sargant, E. 96—97 

 Schaffner, John N. 

 Strasburger, E. 00 



Tischler, 



Veddovsky, ] 



Williams, J. 

 Yamanouchi, 



Explanation of Figures in Plates X-XIII. 



