Peason 1961 Tiller Calhoun Live and 4 mice. July 7 at 7:30 a.m. (night clear, no dew) lower line had 10 micrutes, 8 Ruther, 16 mice, and upper line had 9 micrutes, 5 Ruther, and 15 mice. at 4 p.m. (hot + sunny) lower line had 5 micrutes and 2 mice; upper line 5 micrutes and 2 mice (discarded all these P.M. specimens) July 8. Night clear calm. Dew on greens of the Orinda Golf Course but none on the grass lines at 6:30 a.m. lower line 5 micrutes, 3 Ruther, 20 mice; upper line 5 micrutes, 3 Ruther, 17 mice, 1 bird leg, and about 10 traps rolled. Summary: mico. Ruther mice other July 6 AM 23 10 32 2 " PM 21 @ 9 0 July 7 AM 19 13 31 0 PM 10 0 4 0 July 8 AM 10 6 34 1 Σ 83 29 110 3 = 225 None of these were tagged mice from the grid between the two lines. The micrutes was not breeding, had green vegetation in stomach, and herobogic lungs. Direction of micrutes that died in traps in very short time in the Orinda pasture revealed