This section is from the "The New Home Cook Book" book, by Ladies Of Chicago Et Al. Also available from Amazon: The Home Cook Book: Tried, Tested, Proved.
Mrs. C. H. Wheeler.
Spirits of ammonia, used in sufficient quantity to soften the water and ordinary hard soap, will make the paint look white and clean with half the effort of any other method I have ever tried. Care should be taken not to have too much ammonia, or the paint will be injured.