60 May 17 D.C. Lighting of groups: much to be learned from theatrical artists; blue light for arctic groups - chilly; orange lights for desert scenes - warm. Miniature groups, near level eyes, with steps for children, are effective even as instructive as life-size groups. Cheaper, occupy less space, fill dark corners (artificially lighted). Mrs. Bailey wants me to send her a synopsis of what is needed as to life-history information concerning gamebirds: those species that might be met with in North Dakota. She wants to have her field observations count as adding to what is already known. May 18 Hollister tells me that he gets uniformly white or dark back.