Presidet B. Young spoke upon Revelation 65 minuts. It was an interesting discourse. He said Revelation was as freequent as the weeds in the garden. All that we knew was by revelation.
[Source: Wilford Woodruff's Journal: 1833-1898 Typescript, Volumes 1-9, Edited by Scott G. Kenney, Signature Books 1993, http://amzn.to/newmormonstudies]