CHAPTER XIX.
SEPTEMBER 18, 1831--SEPTEMBER 21, 1832 Takes rooms with Horatio Greenough .-- Political talk with Lafayette .-- Riots in Paris .-- Letters from Greenough .-- Bunker Hill Monument .-- Letters from Fenimore Cooper .-- Cooper's portrait by Verboeckhoven .-- European criticisms .-- Reminiscences of R.W.

Habersham .-- Hints of an electric telegraph .-- Not remembered by Morse .-- Early experiments in photography .-- Painting of the Louvre .-- Cholera in Paris .-- Baron von Humboldt .-- Morse presides at Fourth of July dinner .-- Proposes toast to Lafayette .-- Letter to New York "Observer" on Fenimore Cooper .-- Also on pride in American citizenship .-- Works with Lafayette in behalf of Poles .-- Letter from Lafayette .-- Morse visits London before sailing for home .-- Sits to Leslie for head of Sterne.