P. PEARSON 1949 association or segregation of bats. Hung up all banded ones on walls or ceiling, but several were flying when I left the cave (about 1/2 hrs. after starting to band). Went into the 2 Ice caves but no bats. Temp. far in was -2° C: icicle, no water. Lunch in bright sun on snow, but temp. below freezing. Then went to Dudley Caves. In North branch found following: 8 single Cory, many with ears curled, in the left-most chamber. None in other parts of this north section, not even down the long tunnel beyond the cave-in. Temp. back thru long tunnel was +9°: Marked location circles etc. the 7 torpid bats. In the south branch Cory was hanging from the high ceiling of main cross-tunnel and in the left-hand chamber. In this chamber were clustera of 18, 6, 5, 2 prs., and 23 singles. Marked their location by chalk circles etc. Although Also three in high-ceilinged cross tunnel (4, 2, 1, 1). Also 2 Myotis subulatus on ceiling about 1 ft. apart. Removed them about 4:30 went to see Brent Parrish and he showed me a new cave on the [illegible] Loop Rd. Opening on top of a rise, probably about a quarter mile S E of Ice Cave. Slept by camp fire in snow. Clear, calm, cold, full moon. At 9 p.m. checked locations of bats in north branch and in cross-tunnel of south branch, but didn't go in the south chamber. Two new single Cory had arrived (or appeared) in no north chamber, and a pair in south. The top member of (dorsal) of this [illegible] pair was awake, the bottom torpid. Tried to net them but the upper escaped. The lower was a 9, no sex apparent.