Quast 1948 Journal 81 May 24 Las Cuevas, 23°34'N, 109°39'W, Baja California wide and the roof over the entrance was about 150 feet above the floor. This cave was about 100 yards south of the first cave and also in the east cliff of the arroyo and also facing south. The roof of the first room was higher than the entrance and domed like that of a cathedral. Wasp nests were just visible on the top of the concave portion. Inwardly the roof dropped sharply to about fifty feet and then gradually towards the end of the cave in two passages. This cave was about 150 feet deep; but the only bats seen were Macrotus californicus, which flew from their roost in the roof of inward-most passages out into the high domed portion to circle spectacularly around the dome or to drop back into the inner, lower parts of the cave. (chid) The other cave visited was about 300 yards from town and on the west side of the arroyo. It too opened to the south and was high and narrow. Dr. Benson and Tevis investigated it, but found it to contain only Macrotus californicus. One Black Phoebe was seen in each of the first two cave entrances. The main activity of the people of the town is growing vegetables which are irrigated by