https://openlibrary.org/books/OL7127678M.opds Notes on the science of picture-making 2017-05-16T12:03:20Z Charles John Holmes https://openlibrary.org/authors/OL5329808A/Charles_John_Holmes Chatto & Windus London 1920 xxix, 325 p. : 4th ed. -- https://openlibrary.org/books/OL7127678M https://archive.org/details/notesonscienceof00holmuoft