Medum /
Petrie, W. M. Flinders(William Matthew Flinders),Sir,1853-1942.
Griffith, F. Ll.(Francis Llewellyn),1862-1934.
Crum, W. E.(Walter Ewing),1865-1944.
Wiedemann, A.,Dr.
Russell, W. J.,Dr., F.R.S.
London,
1892.