R.D Kirkpatrick Mus musculus 1964 Sand Island, Johnston Atoll, Pacific Dec 27 11:30 PM. 24 mice (including 5 unmarked ones) were caught. (Cont) Dec 28 1:30 A.M. 14 mice (including 5 unmarked ones) were caught. 3:30 A.M. 12 mice (including an unmarked one) were caught. 5:30 A.M. 10 mice (including an unmarked one) were caught. 7:30 A.M. 2 marked mice were caught. 9:30 A.M. One marked mouse was caught 11:30 A.M. No mice were caught. 1:30 P.M. No mice were caught. 3:30 P.M. No mice were caught. 5:30 P.M. One marked mouse was caught. 7:30 P.M. Three marked mice were caught. 1965 Jan 1 9:30 A.M. The 72 grid traps had 34 mice (including 3 unmarked ones) in them. 11:30 PM. We set the grid traps. Jan 2 9:30 A.M. 29 mice (including one unmarked one) were in the grid traps. Midnight. We set the grid traps (which had been cleared in the P.M.).