The Dictionary of Scottish Church History & Theology is an excellent resource that was originallly published by InterVarsity Press (in the U.S.) in 1993. The rights are held by T&T Clark. I wrote them back in the spring and they said they do plan to bring it back into print but seemed to favor hardcopy over digital. Interested Logos users should contact the editor (information below) and advocate for it to be done digitally as well.
Thomas Kraft, Associate Publisher
T&T Clark London
+44 (0) 20 7922 0898
(direct dial)
info@continuum-books.com
www.tandtclarkblog.com