Project 8.2 also had 12 calorimeters at Aomoen (GEORGE) directed to the expected point of burst above Namu (CHARLIE) with which to measure the radiant energy incident on the combustible specimens, In front of both specimens and calorimeters were screens of various trans-= missions, to vary the amount of incident radiant energy. ESULTS Because the bomb burst was not directly over planned target zero, the direct radiation from the entire fireball entered the cells at an appreciable angle, irraiiating only a small portion of each specimen at Aomoen (GEORGE) and missing the specimens entirely at Yurochi (DOG). The small sensitive elements of the calorimeters at Aomoen (GEORGE) were illuminated by only a part of the fireball, and it is doubtful ir the oscillograph deflections can be given a meaningful interpretation, The wood specimens were charred to different depths depending on their densities and the transmission of the screens. Some of the specimens of black and gray alpha-cellulose papers, newspapers, and pine needles were ignited, so that on these the critical ignition energy was well bracketed. Ignition was not obtained on the grass, cotton denim, rayon cloth, or the white alpha-cellulose paper. Corrugated fiberboard was burned at Yurochi (DOG) by the radiation from a part of the fireball at an unknown calorie level, The critical ignition energies for these fine materials cannot be ascertained from the test. The manner of mounting specimens for ignition test and of exposing them immediately before shot times ~ both tried for the first time in this field test - were highly successful, GOPIED/DOE LANL RC ~-gsl-