He was diagramming with his pencil some new mechanical device to be used at the Metropolitan in the production of the Rheingold, when he became conscious that she was looking at him intently, and that he was talking to the four walls.
"Youth and the Bright Medusa"
Willa Cather
A little diagramming will prove that the U-boat must be almost directly in line of its hoped-for victim if it is to score a hit.
"The Victory At Sea"
William Sowden Sims Burton J. Hendrick
School also failed with the education of the inner Emeline, although she moved successfully from a process known as "diagramming" sentences to a serious literary analysis of "Snow-Bound" and "Evangeline," and passed terrifying examinations in ancient history, geography, and advanced problems in arithmetic.
"The Story Of Julia Page Works of Kathleen Norris, Volume V."
Kathleen Norris