This is an alphabetical author-index of published works on sleeping-sickness, the trypanosomiases of man and animals, and the tsetse fly, containing nearly 2,000 titles, and comprising, the compiler believes, an almost complete list of references to papers on the first two subjects published from 1803 to March 31, 1909. Besides being indexed under the names of authors, the papers are given under the names of journals in which they appeared. A subject-index, now in course of preparation, will be forwarded to subscribers to the present work. References to the literature of the subject subsequent to March, 1909, are contained in No. 6 and succeeding numbers of the Sleeping-Sickness Bureau Bulletin. It may be worth while to note that the director of the bureau desires to receive early copies of authors' papers for notice in the Bulletin. The bibliographic work appears to be very well done, and the pamphlet should be