Chappell's One Hundred Scotch Melodies
arranged for the concertina by Carlo Minasi
published by Chappell & Co. London c.1860-1870
Tests: sess list tunelist tool.

Peter Dunk sent me a copy of his transcriptions of this book, which is here and on several other web sites. I've split it up into a flock of single-tune files for fast downloading, in addition to Pete's single 100-tune file. There are a lot of familiar Scottish tunes here, in a form suitable for most keyboards. (The chords and partial harmony lines will make it a bit challenging for most other melody instruments.)