[195] Mrs. Cottle published a number of letters that attracted attention at the time. Among these were letters to the emperor of France and king of Sardinia (1859) relating to the prophecies of the war between France and Austria; to G. C. Lavis and Her Majesty's Ministers (1859) relating to her claims as a prophetess; and to the "Crowned Heads" at St. James, the King of Prussia, and others (1860), relating to certain passages of Scripture. She also wrote _The Lamb's Book of Life for the New Jerusalem Church and Kingdom, interpreted for all nations_ (1861). [196] See Vol. I, page 315, note 2 {685}, and Vol. II, page 58, note 109. [197] A Congregational minister, who published a number of sermons, chiefly obituaries, between 1804 and 1851. His _Frailty of Human Life_, two sermons delivered on the occasion of the death of Princess Charlotte, went through at least three editions. [198] He was secretary of the Congregational Board and editor of the _Congregational Year Book_ (from 1846) and the _Congregational Manual_. [199] Frederick Denison Maurice (1805-1872) began his preaching as a Unitarian but entered the Established Church in 1831, being ordained in 1834. He was professor of English and History at King's College, London, from 1840 to 1853. He was one of the founders of Queen's College for women, and was the first principal of the Working Men's College, London. The subject referred to by De Morgan is his expression of opinion in his _Theological Essays_ (1853) that future punishment is not eternal. As a result of this expression he lost his professorship at King's College. In 1866 he was made Knightbridge Professor of Casuistry, Moral Theology, and Moral Philosophy at Cambridge. [200] See Vol. I, page 46, note 1 {42}. Besides the books mentioned in this list he wrote _The Ratio between Diameter and Circumference demonstrated by angles, and Euclid's Theorem, Proposition 32, Book I, proved to be fallacious_ (Liverpool, 1870). This is the theorem which asserts that the exterior angle of a triangle is equal to the sum of the two opposite interior angles, and that the sum of the interior angles equals two right angles. He also published his _Curiosities of Mathematics_ in 1870, a work containing an extensive correspondence with every one who would pay any attention to him. De Morgan was then too feeble to show any interest in the final effort of the subject of some of his keenest satire. [201] See Vol. I, page 332, note 4 {709}. [202] See Vol. I, page 101, note 4 {174}. [203] "The circle-squaring disease"; literally, "the circle-measuring disease." [204] See Vol. II, page 63, note 136. [205] William Rutherford (c. 1798-1871), teacher of mathematics at Woolwich, secretary of the Royal Astronomical Society, editor of _The Mathematician_, and author of various textbooks. _The Extension of [pi] to 440 places_, appeared in the _Proceedings_ of the Royal Society in 1853 (p. 274).