Tone did not feel himself bound in honour by his compact with the government at home to abstain from further conspiracy; and finding himself at Philadelphia in the congenial company of Reynolds, Rowan and Napper Tandy, he undertook a mission to Paris to persuade the French government to send an expedition to invade Ireland.
Colonel Rowan and Sir Henry Maine, soon lived down the hostility first exhibited, and although one serious and lamentable collision occurred between, the mob and the police in 1833, it was agreed two years later that the unfavourable impression at one time existing against the new police was rapidly diminishing, and that it had fully answered the purpose for which it was formed.
Sir William Rowan Hamilton (British Assoc. Report, 18 33, p. 360) thus derived the aberrations of the third order; and in later times the method was pursued by Clerk Maxwell (Proc. London Math.
In 1859 he was the Republican candidate for Speaker of the House, but was obliged, after a contest that lasted two months, to withdraw, largely because of the recommendation he had inadvertently given to an anti-slavery book, The Impending Crisis of the South (1857), by Hinton Rowan Helper (1829-1909).
Kuhn (1750-1751) and Jean Robert Argand (1806) were completed by Karl Friedrich Gauss, and the formulation of various systems of vector analysis by Sir William Rowan Hamilton, Hermann Grassmann and others, followed.
Indeed, it was not until Mr. Rowan got the Dutch government, about 1838, to substitute jute yarns for those made from flax in the manufacture of the coffee bagging for their East Indian possessions, that the jute trade in Dundee got a proper start.
It appears to have been used by James Bradley, but for its practical development we are mainly indebted to Sir William Rowan Hamilton, who published an account of it in the Proceedings of the Royal Irish Academy, 1846.