A considerable amount of work has been done at the Air corps Jet Propulsion Research Project with a spontaneously igniting propellant combination consisting of red fuming nitric acid and aniline. (Cf. Ref. 1,2,3,4,5, and 6) Similar studies have been carried out by the Navy Bureau of Aeronautics Projects and by the Aerojet Engineering Corporation. In this report and effort has been made to collect and discuss the results of these investigations and to describe the properties of a number of propellant components