E.L. Karlstrom 1954 Journal (4) April 8 locality suggested by Stedman looks sufficient running or standing water to yield any good breeding sites. The creek bed coming from Glacier dental Rock is dry. The only pond I found big enough to hold Hydra was at the base of a large boulder on the south side of the Church at Old Village. A few adult Hydra were visible in the water and egg clusters were present. I took the trail leading along the base of the Valley wall SW from Old Village. No large pools were visible. It appears as if the meadow area SW of Old Village is out as a study site. However, pools along the SE side of the road between dental Bridge and Camp 6 may be a possibility. These pools follow a course along the road and apparently represent flood courses of the Merced River when it is high. Certain of the pools are boggy. Water samples were taken at pools where Hydra were found (eggs present) and in brownish pools where there were no signs of animals. It remained clear but cool in the early evening as we returned to a cabin rented earlier in the day near Yosemite Lodge, at 8:00 P.M. I collected my night collecting gear and headed back to El Capitan Meadow. Air temp. 70 C. Rancous Hydra chases here. Moon 1/3 full gave light to open meadow pond here.