Theiler, Arnold, Sir, 1867-1936; Transvaal Department of Agriculture
(Pretoria: Government Printer and Stationery Office, 1909)
Horses and mules were inoculated against piroplasmosis and it was found that Argentine and Transvaal horses and mules can safely be inoculated against piroplasmosis by using donkey foal blood of the fourth generation and upwards.