J. Newton Brown writes an encyclopedia entry where he describes Joseph as being a glass-looker and this contributing to the coming forth of the Book of Mormon.
J. Newton Brown, "Mormonites," in Encyclopedia of Religious Knowledge (Boston: Shattuck & Company, 1835), 844
MORMONITES; believers in the "Book of Mormon." This famous book, which its misguided followers regard as a second Bible, or more properly as the Mohammedans do the Koran, is said to be a translation from certain brass plates, found in the town of Palmyra, (N.Y.) in 1826, They were enclosed in a box, which had to all appearance been used for common sized window glass. Smith pretended to interpret them, with a stone in his hat, and this hat over his face, while one Martin Harris was employed to write down the contents at his dictation. Some disagreement arising between the parties, Harris went away, and Oliver Cowdery came and wrote for Smith, while he interpreted as above described, till the "Book of Mormon" was completed. Smith then gave out that it was a revelation from heaven, and that he himself was a prophet; and thus collected around him a class of simple and credulous people, whom he persuaded to dspose of their peroperty, and follow him to the New zion which he was commissoned to establish in Missouri, west of the Mississippi river, "in the centre of the world."