London: H. F. & G. Witherby, 1921. Large octavo, 36 plates (ten coloured) by Lilian Medland, fine copy in dustwrapper.
A prospectus was issued announcing the intention of a four volume manual. When this first volume was published Iredale had immigrated to Australia and presumably this had an effect on the completion of the project.
Price: $150.00 AU