Here is the booklet Model Study 2 published in 1939, it is searchable and bookmarked
http://www.archive.org/download/modelstudy2/1939modelstudy2.pdf
Do you think it is worth the effort to have text behind the scanned images, for researching purpose?
I know there are scanned booklets without it, but is it helpful to rescan some in order to have text behind them?