...Evening I walked over to O. Pratts wagon, and through his telescope saw Jupiter's four moons very distinct, never having seen them previously. I went over to my wagon and looked through my glass and could see them with it, but not so distinct as with Orson's . . .
[Source: George D. Smith, An Intimate Chronicle; The Journals of William Clayton, Signature Books in association with Smith Research Associates, Salt Lake City, 1995, http://bit.ly/WilliamClayton]