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 

 vertebrae, 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 raaxillaries, two ossa malse, 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 gen'Sral circulation, appear to contribute to the 

 moderation of his desires. 



The uterus of woman is a simple oval cavity; her mammae, only 

 two in number, are placed upon her breast, and correspond with the 

 facility she possesses of supporting her child upon her arm. 



Physical and Moral Development of Man. 



The term of gestation in the human species is nine months, and 

 but one child is usually produced at a birth, as in five hundred 



