If the book referred to in the last posting was incorrectly cited (which makes it much rarer) and should have been: Winter-Growing Gladioli of South Africa -- by Du Plessis and Del Pierre, there are three copies available that can be accessed immediately at http://www.abebooks.com/. Two are $25.00 (in the U.S.) and the other is at $150.00. This is the first place I check for old and hard-to-find books. The other is http://www.alibris.com/. Cheers,