The Christian Science Hymnal is a collection of hymns used in Christian Science church services including Sunday services and Wednesday evening testimony meetings, as well as in occasional informal hymn sings. Content The Christian Science Hymnal includes both traditional Christian hymns and hymns unique to the Christian Science hymnal. The hymnal includes tunes from a variety of styles and nationalities. It gives metronomic markings to help musicians, but never a fixed tempo, so that the musicians may find the appropriate speed for the building, congregation, or situation themselves. The hymnal includes seven poems by the denomination's founder Mary Baker Eddy set to various tunes: Christ My Refuge, Christmas Morn, Communion Hymn, Feed My Sheep, Love, Mother's Evening Prayer, and Satisfied. The hymnal also includes hymns written by John Greenleaf Whittier, Isaac Watts, Samuel Longfellow, and many others. A 2017 supplement added modern hymn and tune authors, such as Dietrich Bonhoeffer. History At the beginning of the Christian Science movement, congregants used other Christian hymnals, but in 1890 the Publishing Society printed a 17 hymn words-only booklet, which was followed two years later in 1892 by the first formal Christian Science Hymnal. The hymnal contained 210 hymns, and generally presented two hymns on a single page, in their poetic form, in conjunction with two or three tunes to which either could be sung. Hymns 179-193 were presented individually, interlined with their respective tunes. Organist and music editor for the hymnal Lyman F. Brackett (1852-1937) contributed 99 of the book's tunes. The layout of the book is described in the Preface: "The system of arrangement is original and unique. On the pages with the hymns, have been placed standard tunes familiar to every church-goer. Every second tune is by an English or German composer of unquestioned musical ability, and will be found adapted either to chorus-choir, or advanced congregational singing. Every third tune has been composed by Mr. Brackett especially for this work;..." After 1892, the hymnal was revised in 1898, 1903, and 1910. The revised hymnals presented the hymns interlined with their tunes for easier reading, as is common practice in America today. Eddy was not closely involved in the 1910 revision of the hymnal, but had input on a few hymns, for instance approving a tune for her poem Mother's Evening Prayer. 1932 edition In 1928 the Christian Science Board of Directors appointed initial committees in London and Boston to