[51] Burkitt (1921) 1. 43.
[52] Testut (1889); Clark (1920) 288–291.
[53] Sollas (1911) 348–350, where all authorities are cited.
[54] Osborn (1918) 516–518.
[55] Burkitt (1921) 1. 273–285.
[56] Macalister (1921) 1. 525.
[57] Macalister (1921) 1. 537, 538.
[58] Sergi (1901).
[59] Brace (1863) 65, 66; Keane (1908) 360.
[60] Giuffrida-Ruggeri (1921).