48 MAMMALIA. : 
large lobes and one small one; his epiploon hangs in front of the 
intestines, and extends into the pelvis. 
To complete the hasty sketch of the anatomical structure of Man 
requisite for this introduction, we will add, that he has thirty-two 
vertebrz, of which seven belong to the neck, twelve to the back, five 
to the loins, five to the sacrum, and three to the coccyx. Seven 
pairs of his ribs are united with the sternum by elongated cartilages, 
and are called true ribs; the five following pairs are denominated 
false ones. His adult cranium is formed of eight bones; an occipi- 
talis, two ossa temporis, two parietalia, and the frontal, ethmoidal 
and sphenoidal bones. The bones of his face are fourteen in number, 
two maxillaries, two ossa malz, each of which joins the temporal 
to the maxillary bone of its own side by a kind of handle called the 
zygomatic arch; two nasal bones, two ossa palati behind the palate, 
a vomer between the nostrils, two turbinated bones of the nose in 
the nostrils, two lachrymals (unguis) in the internal angles of the 
orbits and the single bone of the lower jaw. Each jaw has sixteen 
teeth; four cutting incisors in the middle, two pointed canines at 
the corners, and ten tuberculated molares, five on each side. At 
the extremity of the spine of his scapula, is a tuberosity called the 
acromion, to which the clavicle is attached, and over its articulation 
is a point called the coracoid process with which certain muscles 
are connected. The radius revolves upon the ulna, owing to the 
mode of its articulation with the humerus. The carpus has eight 
bones, four in each range; the tarsus has seven; those of the remain- 
ing parts of the hand and foot may be easily counted by the number 
of fingers and toes. 
Enjoying uniform and regular supplies of nourishment, the fruit 
of his industry, Man is at all times inclined to the ‘* plaisirs 
d’amour,”’ without ever experiencing that irresistible and violent 
impetus which marks the passion in quadrupeds. His organ of 
generation is not upheld by a bony axis; the prepuce does not tie it 
down to the abdomen, and it hangs loosely in front of the pubis. 
Numerous and large veins which effect a rapid transfer of the blood 
of his testes to the general circulation, appear to contribute to the 
moderation of his desires. 
The uterus of woman is a simple oval cavity; her mammz, only 
two in number, are placed upon her breast, and correspond with the 
facility she possesses of supporting her child upon her arm. 
Physiealyand Moral Development of Man. 
Age ¢ 
The term of gestation in the human species is nine months, aie 
but one child is usually produced at a birth, as in five hundred 
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