CJJ 68-4 Carol J. James Devil's Hole, DVNM, Ash Meadows, Nye Co., Nevada. 1 March 1968 0730 - 1000 hrs PST (C. James) & C.W. Joy Initial Observations: Weather - sky clear - no wind. (sunrise - 0615 hrs.) OK Took picture of shelf w/my camera - Scum (taken before disturbance) General condition - Scum completely covering surface except for small whirl in edge. - Scum quite heavy. Algae - very slight covering over rocks. Green tint in places & on rocks at water surface. 0745 - Definite feeding. (lunging at rocks). Water level - 1.98 Light i = 11.8 λ = 6.4 Eight fish at water meta - (Nursery) c=10.5 λ=6.0 Neither beetles nor planaria are active. 0753 hrs. - Had to disperse scum in order to count fish. Could see only very limitedly. Fish disappear into rocks. Some chasing observed.