The book version of the file contours-vl.dvi.gz include intonation contours supplied by hand in a number of diagrams. The dots are typically connected by lines. In some of the diagrams (viz. (6a), (7a), (9-11a,b), (18a), (20a-c), 17), (30), (42), (61) and (63-67)) the lines are not recoverable from the dvi file. It is a good exercise to guess their shapes based on the text. :-)