The elements of art; a manual for the amateur, and basis of study for the professional artist (1848)
Chapman, J. G. (John Gadsby), 1808-1889, Chapman, J. G. (John Gadsby), 1808-1889. American drawing book · London, D. Bogue · leaf 29
from these right lines, and expressing them exactly as you have already done in the examples before given (22). With the straight lines BE — EF to guide you, the gradual taper and expansion of the object is readily expressed by one clear sweep, easily obtained and repeated. 30. The first and… … 4
Drawing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.