Black Acts are a collection of the acts of the Scottish parliament from 1424 to 1594, so called because printed in Black-letter (q.v.). The name was also given to an act of George I. (1723) affecting poachers who disguised their faces in black for the purpose of committing outrages (referred to in White's Natural History of Selborne).
Black Acts
Chambers's Encyclopaedia, Volume 2: Beaugency to Cataract, p. 196
Source scan(s): p. 0207