Hi jmacg:
The webpage is here:
http://www.archive.org/index.phpGo to "texts" and then "advanced search". Insert "Scottish Record Society" in the creator box. You will get a wealth of scans of original Scottish Record Society transcripts including:
1. Volume 43-- The Burgesses and Guild Brethren of Glasgow 1573-1750. (Vol 93 seems to be a duplicate).
2. Volume 51-- The Burgesses and Guild Brethren of Glasgow 1751-1846.
3. Volume 46-- The Burgesses and Guild Brethren of Edinburgh 1406-1700.
4. Volume 53-- The Burgesses and Guild Brethren of Edinburgh 1761-1841.
5. Volume 47-- Register of Edinburgh Apprentices 1666-1700.
Other volumes hold transcripts of parish registers, etc. A GREAT online resource.
Good luck.
Lanarman