46 THE TONER LECTURES. 



behiud. The septum may be in other respects straight. The apex 

 of the angulated part often presents a groove which closely resem- 

 bles the sulcus found in localities marked by the course of vessels. 

 In the skull of an Ottawa Indian^ the ethmoido-vomerinespur bears 

 a groove which is continuous with a distinct canal posteriorly. 

 The following specimens of skulls may be referred to, in each of 

 which the groove is present on the left side : A Columbia River 

 Indian,'^ two Peruvians,^ and an Anglo-American.* 



In one additional skull — that of a Peruvian^ — the angulation and 

 groove are on the right side. 



That the chamber to which the septum inclines should be the 

 smaller is shown by many examples.** 



Deviations to the right side are seen in two Peruvians/ an 

 Afghan,* a Circassian,' an Armenian,'" a Finn," and a Utah Indian.'^ 



The disposition for the ethmoido-voraerine suture, as well as the 

 maxillary crest at the triangular notch, to be hyperostosed and to 

 present spur-like projections to the left side are such striking feat- 

 ures in the majority of crania that no moi'e than a recognition ot 

 their presence is here demanded.^' 



In a skull of a Ruthene (No. 19, Col. of Phys.) from a child seven 

 years old the perpendicular plate and the vomer slip by one another, 

 are not united, but are simply in apposition. The apposed surfaces 

 are 3™" long. If the degree of variation had been expressed in re- 

 sistance at the line of normal union, it is difficult to see how deflec- 

 tion could have been avoided. Adult skulls not infrequently show 

 the nasal surface of the frontal bone with the nasal process retaining 

 the long plate of bone in place of the short, compressed spine, as is 

 usually described. Examples of this conformation are seen in 

 three Egyptians," two Peruvians,'^ and one each of Circassians,'® 



1 No. 573. 2 No. 1363 and 1407. » No. 62^ * No. 67. 



^Egyptian, No. 819; Circassian, 765, 498; and a Malay, 459. 

 6 Nos. 412, 1407 ; ' 1333 ; « 762 ; » 790 ; i" 1543 ; " 140. 

 ^*See a paper by the writer, Ainer. Journ. Med. Sci., April, 1880, 70. 



" Nos. 799, 819, 804, aged 16 years. i* No. 432. 



15 "642,1137. i« " 25, aged 12 years. 



