P. PEARSON 1950 June 20 Nothing in traps. Weather overcast all morning with occasional sprinkles. Temp at noon during sprinkle: 28° Afternoon overcast also. Went at dusk to Hacienda San Diego to look for bats. Many flying around the main building, which is in a hollow among fruit trees. Caught some in the high-ceilinged rooms of the house and hanging in the porch. The residents discouraged extensive collecting because they said it would be easy to get all we wanted in the come tomorrow. June 21 Went cave hunting with the Hacienda administrator. They are in the guleroles of the Acute creek just above the lavender buildings and consist of scooped out places in the conglomerate cliffs of the guleroles as well as curious deep holes in the cliffs. These holes are about 10 inches in diameter and as much as 15 feet deep; maybe formed by roots. Molatos. Saw four mole-eats? under a shelf in a dry wash but got none. Considerable sun during day, no rain; no temp. resting at noon because close off cave hunting. Returned at dusk to the hacienda. Hunting about as before with addition of a big Phyllostomid which came in with a flutter of wings and scratching of feet to night - roast under the roof of the porch. The administrator says we should be here a month or two hence when the nopales are ripe. Bats come from miles to feed on them. June 22. About ½ inches of rain during night and morning overcast: Temp at dawn 22°, at noon still cloudy 29°, humidity = 60. Afternoon mostly sunny. Put 10 traps