First counselor George A. Smith tells Salt Lake School of the Prophets about "the evil of Masturbation" among Utah Mormons. Apostle Lorenzo Snow says that "Plural Marriage would tend to diminish this evil self-pollution," and he believes that "indulgence on the part of men was less in Plural marriage than in Monogomy." Elder George Reynolds (Secretary to Brigham Young) also tells the School that "where Monogomy was the Law, it compelled a more frequent (sexual) cohabitation than is right and proper." Medical books of the time advise sexual intercourse only once a month.
[On This Day in Mormon History, http://onthisdayinmormonhistory.blogspot.com]