Here is represented the 116th issue of the Index to Public Health Reports. The indexes of the first three volumes of the Reports,1878-79,1887,and 1888, were included as an integral part of the index to volume 4. There after, the index continued as an annual publication until 1900. Now after 52 years as a semi annual, it returns to its annual status, coincident with the change-over of Public Health Reports from a weekly to a monthly publication. The index, too, retains its general character of author-title-subject entries of all material in Public Health Reports. However, after several years of division in to an author index and a subject-title index, it is now a one-alphabet arrangement. The appearance of (B) after an author entry indicate...