Letter from Thomas Gold to Dr George Mueller, Associate Administrator for Manned Space Flight, National Aeronautics and Space Administration [NASA], Washington, DC Discussing the general subject of photography on the Moon. Thinks that, after sample recovery, 'photography will be scientifically the most important activity for which astronauts are really required'. Goes on to say why and pushes for the astronauts to have training, a plan and equipment for the photography they will carry out. Says that the design of a 'small close-up camera' is proceeding. Also says that they will produce proposals concerning 'a simple general purpose camera'. 9 February 1968