“ In the history of modern pathology, this organization of research in respect of “sleeping-sickness” must hold an important place as the application of state effort on behalf of the advancement of science. ”

“ It remained a question how far certain unascertained factors were at work in the spread of the disease, and for this purpose the British government invited the co-operation of all the powers interested in tropical Africa in considering certain problems, annual or biennial conferences being suggested, and the formation of a central bureau, in order to organize the research. ”

“ It had further been ascertained, experimentally in animals, and therapeutically in man, that the infection once acquired could be controlled, to some extent, by various substances—arsenic, certain colours, dyes, in combinations of arsenic and colour dyes, e.g. ”