Scope and content 26 items including pen and ink drawings of trees made by Albert Force for a series of nature-study sheets planned to be published by the Slingerland-Comstock Press of Ithaca, New York, to supplement its nature study booklets. Nine of the drawings were used in an article by Professor E. Laurence Palmer, "Wooded laboratories," published in the spring 1951 issue of the Cornell Rural School Leaflets. Also, typescript essay by Albert...