208 DISEASES PECULIAR TO MAN. 



a distinct and separate species may be brought together in 

 one view : — 



1. Smoothness of the skin, and want of natural offensive 



weapons, or means of defence. 



2. Erect stature ; to which the conformation of the body 



in general, and that of the pelvis, lower limbs, and 

 their muscles in particular, are accommodated. 



3. Incurvation of the sacrum and os coccygis ; and con- 



sequent direction of the vagina and urethra forwards. 



4. Articulation of the head with the spina) column by the 



middle of its basis, and want of ligamentum nuchae. 



5. Possession of two hands, and very perfect structure 



of the hand. 

 6*. Great proportion of the cranium (cerebral cavity) to 

 the face (receptacles of the senses and organs of 

 mastication) . 



7. Shortness of the lower jaw, and prominence of its 



mental portion. 



8. Want of the intermaxillary bone. 



9. Teeth all of equal length, and approximated : inferior 



incisors perpendicular. 



10. Great developement of the cerebral hemispheres. 



11. Great mass of brain, in proportion to the size of the 



nerves connected with it. 



12. Greater number and developement of mental faculties, 



whether intellectual or moral. 



13. Speech. 



14. Capability of inhabiting all climates and situation ; 



and of living on all kinds of food. 



15. Slow growth; long infancy; late puberty. 



IG. Menstruation; exercise of the sexual functions not 

 confined to particular seasons. 



