Your favor of the 22nd, inst.[,] asking the form of ceremony you ought to use in rebaptizing persons who wish the ordinance, and also the form of ceremony in confirming the same, has been received. Your letter was read to the Council, and it has been decided that the proper form to be used in rebaptizing persons who have not been cut off the Church or dealt with for their fellowship is as follows: the person who has authority from the Lord to baptize shall go down into the water with the person to be baptized, and shall say, calling him or her by name, "Having been commissioned of Jesus Christ, I baptize you for the remission of your sins, and for the renewal of your covenants, in the name of the Father and of the Son and of the Holy Ghost. Amen." In confirming[,] it is proper to reconfirm the members of the Church and to seal upon them all the former baptisms, confirmations, ordinations, patriarchal blessings, and if they have had their endowments, their washings, anointings and their sealing ordinances.
[Source: John Taylor to Moses Thatcher, Sept. 25, 1877, in Anderson, Devery; The Development of LDS Temple Worship, 1846-2000: A Documentary History, http://amzn.to/TempleWorship]