The quickest and cheapest method is by surface explorations.
This railway would give the quickest means of access to British Central Africa and the southern part of Belgian Congo.
By its railway connexions Cape Town affords the quickest means of reaching, from western Europe, every other town in South Africa.
If compact ("roll") sulphur is wanted the distillation is made to go on at the quickest admissible rate.
The two systems, it will be seen, are doubly connected, namely at Bloemfontein and at Kroonstad, and the lines running east from those towns afford the quickest connexion between Cape Town and Durban.