46 



LECTURE II. 



Fig. 10. Cranial net, after Welcker. The measures are taken from an 

 asymmetrical skull. The lines of which the diagram is composed have the 

 same names as in the table at the conclusion of the lecture. 



/. Frontal protuberances, p. parietal protuberances, z. Zygomatic pro- 

 cess of frontal bone. m. Mastoid process, o. Occipital protuberances. 1. 

 Superior cranial quadrangle. 2. Frontal quadi-angle. 3. Basal quadrangle. 4 and 

 5. Lateral trapezia. 6. Superior, 7, inferior, 8 and 9, lateral, occipital triangles. 



to the shapes of leaves and flowers. Welcker also admits that 

 many important peculiarities of parts situated between the 

 points of measurement, can only be determined by a very com- 

 plicated process, e. g., the shape of the frontal profile, the 

 degree of elevation of the various eminences, the circumfer- 

 ence of the skull, &c. ; and that, for all these particulars, 

 pictorial representations and full and lucid descriptions must 

 supplement the measurements. 



