`Book of Opinions`, volume 3, containing copies of opinions and memorials of English Crown counsel in matters of customs and excise arising in the Exchequer or Treasury., 1739-1746., Adv.MS.28.3.1(ii). `Book of Opinions`, volumes 2 and 3, containing copies of opinions and memorials of English Crown counsel in matters of customs and excise arising in the Exchequer or Treasury., Adv.MS.28.3.1(i)-(ii). National Library of Scotland Archives and Manuscripts Division. https://nlssb.as.atlas-sys.com/repositories/2/archival_objects/13375 Accessed September 23, 2024.