CHAPTER XXII.
1833--1836 Still painting .-- Thoughts on art .-- Picture of the Louvre .-- Rejection as painter of one of the pictures in the Capitol .-- John Quincy Adams .-- James Fenimore Cooper's article .-- Death blow to his artistic ambition .-- Washington Allston's letter .-- Commission by fellow artists .-- Definite abandonment of art .-- Repayment of money advanced .-- Death of Lafayette .-- Religious controversies .-- Appointed Professor in University of City of New York .-- Description of first telegraphic instrument .-- Successful experiments .-- Relay .-- Address in 1853.