Following this pronounced success in authorship, Cooper set to work on a third book and continued for the remainder of his life to devote most of his time to writing. Altogether he wrote over thirty novels and as many more works of a miscellaneous character. But much of this writing has no interest for us at the present time, especially that which was occasioned by the many controversies in which the rather belligerent Cooper involved himself. His work of permanent value after _The Spy_ falls into two groups, the tales of wilderness life and the sea tales. Both these groups grew directly out of his experiences in early life. Cooper was born on September 15, 1789, in Burlington, New Jersey, but while still very young he was taken to Cooperstown, on the shores of Otsego Lake, in central New York. His father owned many thousand acres of primeval forest about this village, and so through the years of a free boyhood the young Cooper came to love the wilderness and to know the characters of border life. When the village school was no longer adequate, he went to study privately in Albany and later entered Yale College. But he was not interested in the study of books. When, as a junior, he was expelled from college, he turned to a career in the navy. Accordingly in the fall of 1806 he sailed on a merchant ship, the _Sterling_, and for the next eleven months saw hard service before the mast. Soon after this apprenticeship he received a commission as a midshipman in the United States navy. Although it was a time of peace, and he saw no actual fighting, he gained considerable knowledge from his service on Lake Ontario and Lake Champlain that he put to good use later. Shortly before his resignation in May, 1811, he had married, and for several years thereafter he lived along in a pleasant, leisurely fashion, part of the time in Cooperstown and part of the time in Westchester County, until almost accidentally he broke into the writing of his first novel. Aside from the publication of his books, Cooper’s later life was essentially uneventful. He died at Cooperstown, on September 14, 1851.