"In the year 1801, Young accepted the office of Professor of Natural Philosophy at the Royal Institution, which had been established in the year preceding, chiefly by the exertions of the well known Sir Benjamin Thompson, Count Rumford. ...After managing the affairs of the Institution for a few months, and commencing the editing of its Journal, he quarrelled with some of the directors and abandoned the scheme altogether. The conducting of the Journal was thenceforward entrusted to the joint care of Dr. Young and his colleague, Mr. Davy, at that time Professor of Chemistry, in whose hands and in those of his not less distinguished successor, Mr. Faraday, the chemical laboratory of the Institution has become the most celebrated in Europe. Dr. Young's first lecture was delivered on the 20th of January, 1802, and the last on the 17th of May. The whole number of lectures given during this Session was thirty-one, which was increased, by the introduction of new subjects in the following year, to sixty... his great work, entitled "A Course of Lectures on Natural Philosophy and the Mechanical Arts," which was published four years afterwards. They are divided into three parts, containing twenty lectures each. The 1st, including Mechanics, theoretical and practical ; the 2d, Hydrostatics, Hydrodynamics, Acoustics, and Optics ; the 3rd, Astronomy, the Theory of the Tides, the Properties of Matter, Cohesion, Electricity and Magnetism, the Theory of Heat and Climatology. They form altogether the most comprehensive system of Natural Philosophy, and of what the French call Physics, that has ever been published in this country; equally remarkable for precision and accuracy... and for the addition or suggestion of new matter or new views in almost every department of philosophy. ... We have heard it remarked, that no writer, on any branch of science which the lectures treat of, can safely neglect to consult them, so rich is the mine of knowledge which they contain; and it is a well known fact, that many important propositions and discoveries have been more or less clearly indicated in them, which have only been recognized or pointed out when other philosophers discovered them independently, or announced them as their own."