_Tendency to classify and diagram_. To classify the data of experience has always been one of D's chief interests. One such tabulation was of parts of speech in various stories and poems. [5] Figure 8 is a sample taken from many pages of reclassification of birds. The caption, "Proper Scientific Name," represents the name considered by D to be better than those now recognized by ornithologists. His classifications of words, numbers, colors, musical notes, objects, and so forth would fill a large volume. He often constructs diagrams to clarify or condense meaning. FIG. 8. A SAMPLE OF D'S CLASSIFICATIONS [PART 1 OF 2, Columns 1-3]. Classification of birds seen in summer 1918. Classified in Feb., 1919. "Proper Scientific Name" is the improved name given by D--. Found Name Genus or, Scientific Here (Popular) [Species,] etc. N a m e * Towhee Species Erythopthalmus X Wh.-eyed towhee Sub-Species E. Alleni X Green-tailed " Genus Oreospiza X Blue Grosbeak Species Caerulea * Indigo Bunting " Cyanea X Painted " " Ciris X Lark Bunting " Calamospiza Melanocorys * Barn Swallow " Erythrogastra * Tree " Genus Iridoprocne * Red-eyed Vireo Species Olivacea Wood Warblers Family Mniotiltidae * Black & White Warbler Species Varia * Yellow Warbler Species Astiva * Sh.-Billed Marsh Wren Genus Cistothorus * Red-br. Nuthatch Species Canadensis FIG. 8. A SAMPLE OF D'S CLASSIFICATIONS [PART 2 OF 2, Columns 1-4 ("Scientific name" repeated)]. Scientific Name Proper Scientific name Equal