Something cool I found in ECCO for William Shakespeare:
Aulnoy, Madame d' (Marie-Catherine), and William Shakespeare. The secret history of Mack-Beth, King of Scotland. Taken from a very ancient original manuscript. Printed for J. Woodward, in St. Christopher's-Church-Yard, in Threadneedle-Street, 1708. Eighteenth Century Collections Online, http://find.gale.com/ecco/infomark.do?&source=gale&docLevel=FASCIMILE&prodId=ECCO&userGroupName=umd_um&tabID=T001&docId=CW3310054974&type=multipage&contentSet=ECCOArticles&version=1.0. Accessed 12 Mar. 2020.