Pitelka 1946 Oct. 17 El Batel, 70 km. NE Mazatlan, 5100 feet, Sinaloa The need to stay in camp to clear up remaining material arose from interruption of our work yesterday afternoon by a thunderstorm, which lasted over an hour. We had had a light rain during the previous afternoon, and we had another this afternoon which continued into the dark. Everything is damp, soggy, or wet. Specimens are drying very poorly. Practically all the buds, by the way, are in late stages of molt; the tender skins holding partially grown feathers, sheathed loosely, adds to the problems of skin preparation.