by South Africa. Public Service Commission

1916

by South Africa. Public Service Commission of Inquiry

1918

by South Africa. Parliament. House of Assembly. Select Committee on Report of Public Service commission

1914

by Natal (South Africa). Legislative Assembly

1903

by Cape of Good Hope (South Africa). Education Department

1930

by Cape Town (South Africa) Chamber of Commerce

1922

by South Africa. Parliament. House of Assembly

1930

by Chemical, Metallurgical, and Mining Society of South Africa

1908

by South Africa

1917

by South African Institute of Mining and Metallurgy

1908

by South Africa. Office of Census and Statistics

1918

by South Africa

1911