"'Mr. Whistler's "Ten O'Clock"' was first published in a private edition of 25 copies in 1885, at the time of the original lectures. The first public edition was published in 1888, by Whistler working with Chatto and Windus. ... This is the edition that has been reproduced here."--Colophon.
Appended by an essay by Margaret F. MacDonald.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Mr. Whistler's "Ten o'clock" by James McNeill Whistler. ISBN 9781843680758. Published by Pallas Athene in 2011. Publication and catalogue information, links to buy online and reader comments.
