Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 184
st, and with gamboge a smear. Acoloured drawing is better without the use of any India ink at all; any depth ofcolour may be as well obtained with blue as with black. There is the objectionto gamboge that it is gummy, and does not wash well, and a better effect is ob-tained with yellow ochre. For…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
