﻿Vol. 66.] 



ANNIVERSARY ADDRESS OE THE PRESIDENT. 



lxxv 



septum is broad, cheek-pouches are absent, and ischial tuberosities 

 only slightly developed. 



An examination of the fundus of the mammalian eye, by means 

 of the ophthalmoscope, reveals a close general resemblance between 

 all the members of the Primates, except the lemurs. Apart from 

 these, the Primates, including the Platyrrhine apes, all possess a 

 macula lutea. This character is probably connected with another 

 equally distinctive, the power to converge the visual axes, which is 

 also restricted to these apes. In the lemurs the macula lutea is 



Fig. 8.— Sole of the foot of Fig. 9.— Sole of the foot of a West 



Gorilla gorilla, Forbes, 

 ( X f-), after 0. Schlagen- 

 Jiaufen, ' Das Haut- 

 leistensystem der Pri- 

 matenplanta. 1 



African , negro, showing primitive 

 characters in the middle and 

 proximal regions (x J), after 0. 

 Sch lagenh aufen . 



absent, as in the rest of the Mammalia, 

 distinguished from the other Primates 

 pupil. 1 



With these scanty citations from the 

 reference to comparative anatomy may 

 recent researches into embryology which 

 manner the conclusions of anatomy must 

 but I cannot refrain from alluding to 



The lemurs are further 

 by the oval form of the 



results of recent work our 

 conclude ; the numerous 

 confirm in a most striking 

 be passed over in silence ; 

 the unexpected evidence 



1 G. L. Johnson, 'Contributions to the Comparative Anatomy of the Mam- 

 malian Eye, chiefly based on an Ophthalmoscopic Examination ' Phil. Trans. 

 Eoy. Soc. ser. B, vol. exciv (1901) pp.. 1-82, pis. 



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