_October._—Down the Ohio to Louisville, where he meets his two sons, one of whom he had not seen for five years; thence to St. Francisville, Bayou Sara, where he joins his wife, from whom he had been absent nearly three years. _1830_ _January 1._—Starts with his wife for Europe, first visiting New Orleans, Louisville, Cincinnati, Baltimore, and Washington, where he meets the President, Andrew Jackson, and is befriended by Edward Everett, who becomes one of his first American subscribers. _April 1._—Sails with Mrs. Audubon from New York for Liverpool. Settles in London; takes his seat in the Royal Society, to which he was elected on the 19th of March; resumes his painting, and in midsummer starts with his wife on a canvassing tour of the provincial towns; invites William Swainson to assist him in editing his letterpress, but a disagreement follows. Changes his plans, and settles again in Edinburgh; meets William MacGillivray, who undertakes to assist him with his manuscript, and together they begin the first volume of the _Ornithological Biography_ in October. _1831-1839_ The _Ornithological Biography_, in five volumes, published at Edinburgh, and partly reissued in Philadelphia and Boston. _1831-1834_ In America, exploring the North and South Atlantic coasts for birds. _1831_ _March._—First volume of the _Ornithological Biography_ published, representing the text of the first 100 double-elephant folio plates. _April 15._—Returns with his wife to London. _May-July._—Visits Paris again in the interests of his publications. _August 2._—Starts with his wife on his second journey from England to America, and lands in New York on September 4. Plans to visit Florida with two assistants, and obtains promise of aid from the Government. _October-November._—At Charleston, South Carolina, where he meets John Bachman and is taken into his home. _November 15._—Sails with his assistants in the government schooner _Agnes_ for St. Augustine. _1832_ _April 15._—In revenue cutter _Marion_ begins exploration of the east coast of Florida; proceeds to Key West, and later returns to Savannah and Charleston. Rejoins his family at Philadelphia, and goes to Boston; there meets Dr. George Parkman, and makes many friends. _August._—Explores the coasts of Maine and New Brunswick, and ascends the St. John River for birds. Returns to Boston, and sends his son Victor to England to take charge of his publications. _1832-1833_ _Winter._—In Boston, where he is attacked by a severe illness induced by overwork; quickly recovers and plans expedition to Labrador. _1833_