Quart 1948 Journal 120 June 14 Mina Palmer del Medero, 400+ ft, 4 mi ESE Pescadero Baja California that it formed another exit on another side of the low-rounded hill containing it. The center of the shaft broadened vertically into a small slope and was diagonally braced with timbers and roofed with wood in several spots. Many Macistus californicus were seen and caught and found to be of both sexes. The Macistus were first seen about 20 feet from the opening. Previous to visiting this mine another was investigated that lay on the opposite side of the hill about one mile north of the above. It was located on the north-facing slope of the hill and was made up of an angled trope of about 75 yds length and going down through three rough levels an estimated 80 feet. The slope was at an angle of about 50° to the horizontal and in a dilapidated condition, numerous cave-ins being noted. Murray netted five Natalis mexicanus near the lower- most and almost inaccessible level. The Natalis were noteworthy in the fact that they were all brilliantly colored from a bright orange-brown to a brilliant orange. Larger bats (Leptonycter?) were also seen