Mayhew 1959 Journal 30. Mar. 21 Colorado Desert, Imperial Co., Calif. and obtained our monthly soil sample in a hollow in the dune (station II) while I took the rest of the class to the top of the dune (station I) for the same purpose. Then we collected our monthly sample of Uma notata. We caught all we could, then when we returned to the car, we released the extra ones that had been captured. We released 4 or adult Uma notata, 4 or immature Uma notata, 29 immature Uma notata, and 1 or adult Uroaurus graciosa. We began looking for Uma at 0915 and stopped looking at 1305. Animals were still active at this time, however. We then drove to Ramer Lake, a few miles north of Brawly, and looked at waterfowl and other birds that had congregated there. Species seen at this location were as follows: Sylvilagus audubonii Cinnamon Tail Marsh wren Yellow-headed Blackbird Tree swallow Red-winged " Cost Brewer's " Baldpate White-crowned Sparrow Fulvous tree duck Audubon warbler Shoveller Black Phoebe Pintail Common Gallinule Scoop House Sparrow