December 10, 1926 - Today we visited Monte Cristo mine west of Divisadero. I described the tunnel rather fully last year so shall not enlarge on my description. The mouth of the tunnel was caved in so we had to enter through a shaft, and had some difficulty in gaining a passage through a small hole on one side of the shaft. There were hundreds of Glbssophaiga flying about and clinging to the rocks. Nos. 12087, 12088, 12089, and 12091 were taken. One Carolia, No. 12085, was taken. There were perhaps three dozen in the tunnel. I saw several vampires, Desmodus rotundus, dodging about behind wooden supports for the mine. I estimated their number at twenty four. No. 12086 was taken. I saw only three Diphyla. Nos. 12083 and 12084 were taken. This vampire did not dodge about and try to hide from the light. I found them clinging to the roof of the tunnel and fingers flexing themselves with their forearms. They were