204 THE SOCIAL LIFE OF ANIMALS 



tions and those on the right give the initiated to 

 reactions. 



Let us examine the upper left figure. A had a 



100 84 74 58 54 

 TOTAL CONTACTS 

 346 



515 



a' 



132 



2 3 15 4 



100 50 70 61 53 

 TOTAL TO CONTACTS 

 176 



149 



74 68 60 53 «— PER CENT 



♦—MENTAL RANK 



100 90 62 52 40 



100 85 61 56 37 

 AGE: 32-36 M0NTH5 



67 62 37 34 <— P£R CENT 



Fig. 42. The Dionne quintuplets also show evidence of 

 a social organization among themselves. 



total of 740 observed contacts directed to and re- 

 ceived from her sisters. This is taken as lOO per cent. 

 C had similarly 622 contacts, which were 84 per 

 cent of A's, and so on, with Y third, M fourth, and 

 E fifth. The order in total number of contacts then 



