RT Journal T1 NEws and comment JF Archives of Surgery JO Archives of Surgery YR 1939 FD July 1 VO 39 IS 1 SP 170 OP 170 DO 10.1001/archsurg.1939.01200130173014 UL http://dx.doi.org/10.1001/archsurg.1939.01200130173014 AB Biological Photographic Association.  —The ninth annual convention of the Biological Photographic Association will be held September 14 to 16 at the Mellon Institute for Industrial Research, Pittsburgh. The program will be of interest to scientific photographers, scientists who use photography as an aid in their work, teachers in the biologic fields, technical experts and serious amateurs. It will include discussions of motion picture and still photography, photomicrography, color and monochrome films and processing, all in the field of scientific illustrating. Up-to-date equipment will be shown in the technical exhibit, and the print salon will display the work of many of the leading biologic photographers in the United States and abroad.The Biological Photographic Association Journal is published quarterly and constitutes a volume of about 250 pages, which is furnished free to members. Membership privileges include an authoritative question and answer service and the right to borrow loan albums and exhibits