22 C. W. M. Poynter 



Group II, B. The brachial is double and the superficial brachial 

 continues as the ulnar. Cases are reported by the following : 



Group II, I. The brachial is double and the superficial brachial 

 continues as the median or interosseus. In these cases the normal 

 brachial divides into the radial and ulnar in the regular way. The 

 condition is much less frequent than the two preceding classes and 

 represents a dropping out of the connection between the ulnar and 

 the median, Barclay (1812), Rendu (1841), it was combined 

 with a recurrent ulnar, Barkow (1851), Parisot (1863), Gruber 

 (1867), Lagrange (1882), Schwalbe (1898), Brick (1910), Hos- 

 kins (1914). 



Group II, 2. The brachial is double and the superficial brachial 

 continues as the radial and ulnar, the profunda as the interosseus. 

 Rendu (1841), Foltz (1872), Lauth (1833), Quain (1844), 

 Gruber (1852-67), Giacomini (1884), Lagrange (1882), Carring- 

 ton (1883), Souligoux (1893), Gerard (1905), Vilhena (1913), 

 Poynter. 



Meckel (1816), Lauth (1833), Cruveilhier (1834-5), Quain (18^4), Gruber 

 (1852), 2: 440 arms, Tiedemann (1846), Gruber (1870), Parisot (1869), 

 Pye-Smith (1871), Foltz (1872), Charles (1873), Humbert (1873), 

 Tischansofif (1873), Walsham (1880), Collins (1886), Mackay (1889), 

 Souligoux (1895), Schwalbe (1898), Breme (1899), Miiller (1903), 

 Bussiere (1904), Vilhena (1913), Poynter 2 cases. 



Group II, 3. The superficial antibrachial radial may be present 

 either as a continuation of the superficial brachial or from the 

 profunda brachii. Dubrueil (1847), Dursy (1861), Gruber 

 (1864), Turner (1878), Barkow (1851), Walther (1886), 

 Schwalbe (1898), Susslow (1903). Stadnetski (1907), Brick 

 (1909). 



Group II, 4. Superficial antibrachial persists. Lucas (1838), 

 Gruber (1867) ulnar double. Schwalbe (1898), Wynkoop (1899), 

 Breme (1899), Miiller (1903), Susslow (1903) ulnar double. 



A large number of variations in the branches about the elbow 

 have been reported, but in the light of DeVriese's work they are 

 readily accounted for. and, on the other hand, until a careful study 

 is made of a large number of arms to establish a normal range 



