Order 1. BBIANA, OR MAN. 35 



Introduction, we will add, that he has thu-ty-tj\o vertebrae, of wliich seven belong to the neck, 

 twelve to the back, five to the loins, five to the sacrum, and three to the coccyx. Of his ribs, 

 seven pairs are united to the sternum by elongated cartilages, and are called true ribs ; the 

 five following pairs are denominated false ones. His adult cranium consists of eight bones ; 

 an occipital (occipito-basilaire) ; two temporal ; two parietal ; a frontal ; an ethmoidal, and a 

 sphenoidal. The bones of his face are fourteen in number ; namely, two maxillaries ; two 

 jugals, each of which joins the temporal to the maxillary bone of its own side by a sort of 

 . handle named the zygomatic arch ; two nasal bones ; two palatines, behind the palate ; a vomer, 

 between the nostrils ; two turbinated bones of the nose in the nostrils ; two lachrymals in the 

 inner 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 molars with 

 tuberculated crowns, five on each side, in all thu-ty-two teeth. His blade-bone has at the 

 extremity of its spine or projecting ridge a tuberosity, named the acromion, to which the 

 clavicle or collar-bone is connected, and over its articulation is a point termed the coracoid 

 process, to which certain muscles are attached. The radius turns completely on the cubitus 

 or ulna, owing to the mode of its articulation with the humerus. The wrist has eight bones, 

 four in each range ; the tarsus has seven ; those of the remaining parts of the hand and foot 

 may be easily counted by the number of digits. 



Enjoying, by means of his industry, uniform supphes of nom-ishment, Man is at all times 

 inclined to sexual intercourse, without being ever furiously incited. His generative organ is 

 not supported by a bony axis ; the prepuce does not retain it attached to the abdomen ; but 

 it hangs 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 mammae, only two in number, are situated 

 on the breast, and correspond with the facility she possesses of supporting her child upon her 

 arm. 



PHYSICAL AND MORAL DEVELOPEMENT OF MAN. 



The ordinaiT produce of the human species is but one child at a bii'th ; for in five hundred 

 cases of parturition, there is only one of twins, and more than that number is extremely rare. 

 The period of gestation is nine months. A foetus of one month is ordinarily an inch in 

 height; at two months, it is two inches and a quarter; at three months, five inches ; at five 

 months, six or seven inches ; at seven months, eleven inches ; and at nine months, eighteen 

 inches. Those which are born prior to the seventh month usually die. The first or milk 

 teeth begin to appear a few months after birth, commencing with the incisors. The number 

 increases in two years to twenty, which are shed successively from about the seventh year, 

 to be rej^laced by others. Of the twelve posterior molars, which are permanent, there are 

 four which make their appearance at four- years and a half, four at nine years ; the last four 

 being fi-equently not cut until the twentieth year. 



The foetus grows more rapidly in proportion as it approaches the time of birth. The infant, 

 on the contrary, increases always more and more sloAvly. It has upwards of a fourth of its 

 height when born, attains the half of it at two years and a half, and the three foiu-ths at nine or 

 ten years. By the eighteenth year the growth almost entirely ceases. Man rarely exceeds 

 sLx feet, and seldom remains under five. Woman is ordinarily some inches shorter. 



Puberty manifests itself by external signs, from the tenth to the twelfth year in girls, and 

 from the twelfth to the sixteenth in boys. It arrives sooner in warm chmates. Either sex 

 very rarely produces before the epoch of this manifestation. 



Scarcely has the body attained its full growth in height, oefore it commences to 

 increase in bulk ; fat accumulates in the cellidar tissue. The different vessels become 



