In America another woman has won renown among astronomers by successfully executing the same kind of work as was entrusted to Miss Dorothea Klumpke in Paris. For many years Mrs. W. Fleming, with her large corps of women assistants, had charge of the immense collection of astronomical photographs in the Observatory of Harvard University. To her and her staff were assigned the reductions and measurements of the photographic and photometric work done in Cambridge and Arequipa, Peru. She was singularly successful in her studies of photographic plates and made many discoveries which astronomers regard of the greatest importance. By such studies she and her assistants detected many new nebulae, double and variable stars, besides spectra of different types and of rare interest. In addition to this they examined and classified tens of thousands of photographs of stellar spectra, a labor which involved countless details of reduction and measurements of exceeding delicacy and skill. A complete list of the women who, during the past half century, have devoted themselves to the study of astronomy and who have contributed to its advancement by their observations and writings would be a very long one. Among those, however, whose labors have attracted special notice, mention must be made of the Misses Antonia C. Maury, Florence Cushman, Louisa D. Wells, Mabel C. Stephens, Eva F. Leland, Anna Winlock, Annie J. Cannon and Henrietta S. Leavitt, all of whom are on the staff of the Harvard Observatory. Then, too, there are many women who occupy important positions as professors or assistant professors in our colleges and universities. Chief among these in the United States are Sarah F. Whiting, of Wellesley; Mary W. Whitney, of Vassar; Mary E. Boyd, of Smith; Susan Cunningham, of Swarthmore, and Annie S. Young, of Mt. Holyoke. Nor must we forget such able computers as Mrs. Margaretta Palmer, of Yale, and Miss Hanna Mace, the clever assistant of the late Simon Newcomb in the Naval Observatory in Washington. In the Old World among the women who, during the last few decades, have materially contributed to the progress of astronomy, either as observers and computers or as writers, are Miss Alice Everett, who has done splendid work in the observatories of Greenwich and Potsdam, Misses M. A. Orr, Mary Ashley, Alice Brown, Mary Proctor--daughter of the late astronomer, R. A. Proctor--Agnes M. and Ellen M. Clerke, and Lady Huggins, of England; Mmes. Jansen, Faye, and Flammarion, in France; the Countess Bobinski, in Russia; and Miss Pogson, in the Observatory of Madras, India.