R.D. Kirkpatrick 1964 Mus musculus Sand Island, Johnston Atoll, Pacific Nov 9:30 P.M. 40 Mue (including 5 10 unmarked ones) were caught. (cont.) 11:30 P.M. 33 Mue (including 8 unmarked ones) were caught. Nov 1:30 A.M. 30 Mue (including 7 11 unmarked ones) were caught. 3:30 A.M. 24 Mue (including 5 unmarked ones) were caught. 5:30 A.M. 28 Mue (including 4 unmarked ones) were caught. 7:30 A.M. 8 marked Mue were caught. The traps were closed. 11:00 P.M. The traps were baited and set. Nov 7:30 A.M. 42 Mue (including 4 unmarked 12 ones) were caught in the 48 grid traps. Nov 8 A.M. 38 Mue (including 3 unmarked 13 ones) were caught in the 48 grid traps. Nov 10 P.M. The grid traps were set. 14, Nov 9:30 A.M. 40 Mue (including 3 un- 15 marked ones) were trapped.