PHYSIOLOGY, AND PATHOLOGY OF THE CHIMPANZEE. 397 



B. Glands in the Pectorcd Extremity: — 1. Two small glands 

 on the axillary surface of the teres major receiving vessels 

 along the axillary vessels ; 2. A row of glands, both large and 

 small, along the course of the long thoracic artery. It is 

 divisible into an upper group draining the glands on the teres 

 major, and a lower group draining the side and back of the 

 thoracic parietes; 3. No delto-pectoral nor cubital glands were 

 found. 



0. Thoracic Glands: — 1. Several glands in the pulmonary 

 roots ; 2. Three small glands among the cardiac plexuses ; 3. No 

 retro-sternal nor vertebral glands were found. 



D. Abdominal Glands: — -1. Several small glands along the 

 lesser gastric curvature ; 2. Several small and large glands on 

 the greater gastric curvature ; 3. Numerous glands between the 

 layex'S of the mesentery ; 4. A chain of glands along the common 

 iliac vessels. 



E. Glands in the Pelvic Extremity: — 1. A group of glands 

 close to the mid point of Poupart's ligament. 



It is, therefore, evident that the groups of lymphatic glands 

 are fewer than in Man. 



Respiratory Organs. 



The external nose is small, flat, and has no lateral cartilages. 

 It is surrounded by a groove in the upper lip. Its muscles and 

 nerves have already been described (see p. 328). The vestibule 

 is well marked, and has numerous vibrissee. The mucosa lining 

 the nose has the orifices of numerous glands, and the upper 

 fourths of the septum and lateral wall have striations produced 

 by the olfactory nerves. The septum is as in Man, but I could 

 not detect any pit corresponding to Jacobson's organ. The 

 inferior turbinate bone (PI. II. A, i.t.b) is long and almost 

 horizontal; it is prolonged backwards by a fold of mucous 

 membrane. The inferior meatus receives the naso-lachrymal 

 duct (N.L.D) in its middle part. The middle turbinate bone 

 (M.T.B) is bifid posteriorly, and is shorter than the lower one. 

 On elevating it, a movable mucosa-covered bony crest is revealed, 

 and between them lies the opening of the frontal sinus (F.S) 

 in the middle meatus. But there is no actual bulla similar to 

 that in Man. Above the middle tvu^binate bone there are three 

 turbinal crests with four grooves. The longest is the superior 

 turbinate bone (S.T.B). The sphenoidal sinus (S.S) is large and 

 opens into the upper turbinal region. It is undivided and 

 excavates the alisphenoids. The frontal sinus is narrow. The 

 antrum of Righmore (PI. II. B) is large, strengthened by 

 buttresses, and has elevations pi-oduced by the roots of the 

 canine, premolar and molar teeth. The turbinal region has been 

 mentioned by Zuckerkandl (55), Keith (64), and Paulli (63). It 

 has several air cells in its walls. 



