Excerpt from Transactions of the Royal Society of Tropical Medicine and Hygiene, Vol. 4: February, 1911 Dr. J. W. W. Stephens: 1 have little to say, having had no actual experience of yellow fever, but I have studied the views put forward by Sir rubert boyce at the last meeting, and, as far as I am able, have considered them in relation to the published facts and history of yellow fever, and I am forced to the conclusion that the evidence before us shews clearly that yellow fever is endemic in West Africa. I think, however, that a good deal depends upon what is meant by the word endemic. Some seem to have expressed the view that endemic means the prevalence of yellow fever in every large town in West Africa, and that cases should consequently be occurring in these towns. But I think there is another view of endemicity, and that is, that cases of yellow fever smoulder, so to speak, perhaps widely scattered, forming a different category of endemicity. It is, I think, very difficult to define the extent of the endemicity of yellow fever, but that there is this endemicity, in the form I have indicated, I believe. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.