DIMMOCK, George, naturalist, born in Springfield, Massachusetts, 17 May 1852. He was graduated at Harvard in 1877, taking special studies there for two years after graduation, and continued his zoological studies in Germany and France, returning to Cambridge in the latter part of 1882. His wife, Anna K. Hofmann, whom he married in 1878, studied with him abroad, and has written zoological articles. Mr. Dimmock is the publishing editor of " Psyche," a journal of entomology, issued since 1874 in Cambridge. He is secretary and librarian of the entomological club of that place, councilor of the Boston society of natural history, and of the Appalachian mountain club. He has been a contributor to Cassino's "Standard Natural History," the " Science" journal, and other periodicals, for which he has written papers on zoological subjects. The degrees of A. M. and Ph. 1). were conferred upon him by Leipsic University in 1881. He is author of a work called "The Anatomy of the Mouthparts of some Insects of the Order of Diptera" (Boston, 1881), and is now (1887) preparing for publication the genealogy of the Dimmock family.