The Stair Society's An introductory survey of the sources and literature of Scots law (1936) & its index are at KL402.STA
The Society's volumes Scotland under Jus commune : census of manuscripts of legal literature in Scotland, mainly between 1500 and 1660 (2010- ) can be requested from the Closed Stacks (see link below)
"... many parts (of Scots law) still bear an unmistakably Roman stamp." per P. Stein 1963 JR 205
Scotland has drawn on both its own legal traditions, and those of its neighbours - both cross-wall and cross-sea - to develop a unique "mixed" legal system.
(The dates are those of the first editions)
Modern editions of these works are: