An act to establish the probates of all deeds and conveyances, which have been proved and acknowledged in this island since the second day of October, in the year of our Lord one thousand seven hundred and fifty-eight, before persons who had been appointed judges under an act entitled “An act to enlarge the jurisdiction of the several inferior courts of common pleas,” and since the repeal thereof, good and valid in that respect only; as also to establish the probates of all deeds and conveyances, taken and acknowledged by justices of assize, good and valid in that respect only; and to establish certain toll-books for the parishes of St. Dorothy and St. Thomas in the Vale, as records.