I've made a large addition to my Mahler pages--a complete Mahler biography
(125 pages long--a publication of the Bruckner Society of America, written
by Gabriel Engel and published in 1930) with many added scanned photos from
various Mahler books.
The whole kit and kaboodle (and a Bruckner biography from the same source,
although with no added graphics) is located at:
http://www.netaxs.com/~jgreshes/mahler/
Jason