LARRABEE. — THE OPTIC CHIASMA OF TELEOSTS. 



221 



that, although the difference between the two groups is small, yet, in 

 the case of the young whose parents were both rights, the tendency 

 towards equality is slightly greater. In other words, among the young 



TABLE II. 



Lots from Table I ix which the Condition of the Chiasma was the 

 SAME (11 X K) IN Both Parents. 



TABLE in. 



Lots from Table I i>f which the Condition of the Chiasma was 

 Unlike in the two Parents. 



whose parents were both rights, the proportion of rights is smaller than 

 among those which had but one parent with the right nerve dorsal. 



It is evident from the close correspondence of the percentages shown 

 in Tables II and III with those of the control lot (Table I), that if the 

 IMendeliau principles of heredity can be applied at all to the case ol' 



