Du Toit, Rene-Marie; Nieschulz, O.; Union of South Africa. Dept. of Agriculture; Du Toit, P.J.(Union of South Africa : Dept. of Agriculture, 1934)
In the course of experiments on the transmission of horse-sickness and blue-tongue of sheep [ cf. preceding paper], it was found necessary to evolve methods for rearing mosquitos, feeding them on experimental animals and ...
Nieschulz, O.; Du Toit, R.M.; Du Toit, P.J.(Pretoria : The Government Printer, 1937)
During the summer of 1932-1933 our work on the natural transmission
of horsesickness was continued at Onderstepoort.
The summer was extraordinarily dry, the total rainfall from
November, 1932, to April, 1933, being only ...
