In the history of chemistry the name of =Marie Curie= will be forever connected with the wonderful discovery of Radium and Radio-activity. Born on November 7, 1867, at Warsaw as Marja Sklodowska she came to Paris in 1888 and studied at the Faculté des Sciences. In 1895 she married Professor Pierre Curie and joined him in his chemical investigations. It was in 1898 that she published a most valuable work on metals in solution. Her investigations in collaboration with her husband led to the discovery of two new bodies: Polonium and Radium, which are found in certain minerals, especially in pitch blende in a state of extreme solution; as a matter of fact, to the extent only of a few decigrammes to the ton of mineral for Radium, and much less in the case of Polonium. The separation of these elements presented extreme difficulties. Further investigations led to the observation of most interesting phenomena in connection with these bodies—chemical effects, luminous effects, effects of heating, etc. New realms of science were disclosed—the science of Radio-active phenomena. In recognition of these discoveries in 1903 the Nobel Prize was awarded to Professor Curie and his wife. And when Mrs. Curie, after the tragic death of her husband, accomplished the “isolation” of Radium and also determined its atomic weight, she was awarded the Nobel Prize for a second time in 1911. At present Mrs. Curie is Director of the Physico-Chemical Department of the University of Paris. For valuable research work in bacteriology =Dr. Rhoda Erdmann=, a former assistant of the famous professor Robert Koch in Berlin, became most favorably known. Having published several excellent treatises on the amoeba and protozoa, she followed in 1913 a call to the Sheffield-Institute of Yale University. In the wide fields of archæology and ethnology likewise several women have achieved remarkable results. Among those scientists who devoted themselves to the study of archæology and the ancient history of America the name of =Zelia Nuttall= is well known. She is the author of many interesting essays on the relics left by the Aztecs, Toltecs, and Mayas. Science is also indebted to her for the so-called “Codex Nuttall,” now preserved in the Peabody-Museum at Cambridge, Mass. Another noteworthy ethnologist was =Erminnie Adele Smith=, who, as compiler of the famous Iroquois-English Dictionary, was distinguished by being elected the first woman member of the New York Academy of Science. =Alice Cunningham Fletcher= made most valuable investigations about the religious and social conditions of several Indian tribes of the Far West, especially of the Sioux, Omaha, and Pawnee Indians. Her very exhaustive studies have been published in the Annual Reports of the Bureau of American Ethnology. The same reports contain highly interesting papers by =Matilda Cox Stevenson= and =Tilly E. Stevenson= about the mythology, esoteric societies and sociology of the Zuni Indians.