Series 4 includes sketches of Arkansas flowers, grasses, and leaves used for lectures and other presentations, 96 color slides of Arkansas wildflowers, and 44 color slides of early spring plants. In addition, there are several photographs of Moore and colleagues taken during research expeditions in New England, Ohio, and Arkansas during the 1920's and 1930's. Each number represents one set of photographs as grouped by Dr. Moore. Numbers in brackets represent the number of items in each Folder.