218 CONTEIBUTIONS TO THE ANATOMY OF THE ANTHEOPOID APES. 



PLATE XXVII. 



Palmar surface of hand and foot of Orang (" George ") : Fig. 1. Hand ; Fig. 2. Foot. 

 — The letters refer to the lines on the palm and sole, which are described in 



the text. 



PLATE XXVIII. 



Fig. 1. Brain of Troglodytes calvus (" Sally "), from behind, c. Cerebellum. 



Fig. 2. Brain of Troglodytes niger, from behind, c. Cerebellum, x. Median part of 



cerebellum not concealed by lateral lobes. 

 Fig. 3. Ear of Troglodytes calvus (" Sally "). H. Helix ; T. Tragus ; F. Fossa. 

 Fig. 4. Pectoral muscles of Orang ("George"). CI. Clavicle; 1-5. Ribs; Pect. 1. 



Pectoralis primus ; Pect. 2. Pectoralis secundus. 



