338 Kneeland on the Skeleton of the Great Chimpanzée. 
the Cyclopedia of Anatomy and Physiology (Art. 'Teeth) ; in 
the upper molars the anterior inner cusp is seen to be united 
to the posterior outer cusp by an oblique ridge; the first 
lower premolar is much larger than the second, the anterior 
cusp being so strongly developed that the tooth resembles an 
enlarged human canine; all the lower molars have three 
cusps on the outside and two on the inside. "The lower jaw, 
as will be seen by the measurements, is of great size and 
strength ; the ramus being at right angles with the body of 
the bone; the condyle is one inch and three fourths wide, 
and five eighths of an inch thick, projecting much internally ; 
the coronoid process is higher than the condyle. The exter- 
nal face of the ramus is deeply concave for the masseter 
muscle; which is nearly three inches wide ; the ramus inclines 
very much outwardly at its lower portion, and is grooved 
internally for the internal pterygoid muscle. The body of the 
' jaw is one and three fourths inches high, and nearly an inch 
thick; the height at the symphysis, and width is two inches; 
the thickness one and one fourth inches; the chin is convex 
and retreating, its convexity measuring three and one fourth 
inches, 
Trunk. Of the vertebra, only the atlas is wanting. The 
odontoid process of the axis, instead of being almost perpen- 
dicular as in man, inclines backwards at an angle of about 
50°; the spinous process is an inch long, spreading at its 
apex to nearly the same width, with an evident disposition to 
fork as in the human type ; it is also somewhat concave at the 
end of its under surface. The bodies of all the cervical ver- 
tebre are higher, but narrower than in man, and received 
deeply one in the other. ‘The spinous processes are hori- 
zontal, long, and, excepting the third, which is sharp-pointed, 
are swelled or club-shaped at the end; the fourth is the 
longest, the third the shortest; their lengths are, from the 
posterior face of the spinal canal, as follows : — the third, two 
and one eighth inches ; the fourth, three and three fourths 
inches ; the fifth, three and five eighths inches; the sixth, 
