Changes at Royal Institution—Development of electricity explained—Experimental illustrations and anecdotes—Reminiscences of Thomas Carlyle—Scientific adviser to the Trinity House Pages [84-104]
PROFESSOR WHEATSTONE.
CHAPTER I.
Forecasts of the telegraph—Early descriptions and history of it—Birth and early achievements of Wheatstone—Enchanted lyre or first telephone—Experiments in audition—Invention of concertina—Velocity of electricity measured—Spectrum analysis—Lightning conductors Pages [105-132]
CHAPTER II.
Origin of telegraph—Early evidences of Wheatstone’s—Working of first needle telegraph—Dispute with Mr. W. F. Cooke as to priority of invention—Wheatstone’s vindication—His electro-magnetic telegraph, magneto-electric machine, electric clock, printing telegraph, chronoscope, method of measuring electricity, and improved needle telegraphs Pages [133-172]
CHAPTER III.
First uses of telegraph—Means of arresting criminals—Early charges for telegraphing—Formation of Electric Telegraph Company—Wheatstone’s magneto-electric exploder—His early experiments with submarine cables—Cable from Dover to Calais—Faraday on Wheatstone’s A.B.C. telegraph instrument—His automatic instruments Pages [173-203]
CHAPTER IV.
Origin of Dynamo—Invention of stereoscope—Improvement by Sir D. Brewster—Illustration of earth’s rotatory motion—Wheatstone’s cryptograph—His minor inventions—Honours conferred on him—His death Pages [204-230]
PROFESSOR MORSE.
CHAPTER I.