Scanned copies are fine for general reference of text and simple illustrations.
Scanned copies are provided on CD as an alternative to Paper Copies.
These files are intended for web use and private research only. They are of small file size, condensed using JPEG compression. This makes them ideal for transmitting via the Internet and placing on web pages. Please note, however, that fine detail is lost. Although useful for reference, they are unsuitable for print reproduction.