May 3 D.C. report, before getting back on the 2nd part of his Mammals of the Mexican Boundary. But he can only work a brief period each day, and seems very tired. He has been retired from the Army on half pay. Ridgway left Washington about 3 weeks ago, to spend his time in Illinois in his "farm" until perhaps next December. His Part VII is due to be issued today, tho I have seen no copy. Hollister says G.S. Miller can distinguish browns all right, but that his "color-blindness" is total with regard to tones of green. Hollister has just shown me a scheme of his in labeling large tanned) mammals. He has an envelope with a brass eye, to tie