[David H. Cannon] gave instructions in regard to Adam offering signs at the altar. Adam does not offer signs at the altar in the Telestial Room. He did not want any innovations in the endowments. Spoke of Pres[iden]t [Brigham] Young coming to him in vision and giving him important information in relation to his duty; visiting him three times in one night.
[Temple Minute Book, St. George, Mar. 5, 1901, typed excerpts in Buerger Papers, in Anderson, Devery; The Development of LDS Temple Worship, 1846-2000: A Documentary History, http://amzn.to/TempleWorship]