Lehner P. 1944 Dec. 17 at 9:30 A.M. we set every other row of our mouse traps (5 rows of nine traps each) and began our activity study; we both checked traps and reset them every two hours all day and night; Doc kept the records, but it was obvious that activity picked up at night, especially early evenings; Dec. 18 we both ran the traps at 7:30 A.M. after we had begun the Guywire Census at 7:00 A.M.; I returned to barracks at 8:00 to sleep until 11:30 when I would eat and take over for Doc; during the day one of us could easily run both the guywire count and the activity mouse grid; early A.M. found only a few Sooties over the island - some were heard off to the South; at 1:20 P.M. one of our green footed mice (one of our previous colored food experimental mice) was found dead in the Transmitter bldg. (about 60 yards from his release point); Doc missed the VP to Johnston, but Armstrong returned with the typewriter; we collected the three abandoned Great Frigatebird eggs and blew them out.