The steadily and rapidly increasing proportion of lawyers to the population in the United States necessarily tends to a lowering of their average professional income, and this tendency is not fully overcome by the increase of the wealth and business of the country. The principle of the concentration of industry also works against the great majority of them. Searching titles to real estate, for instance, was until the last half of the nineteenth century part of the business of every lawyer. It is now in the larger cities monopolized by certain firms or corporations, who own copies or abstracts of the public records, laboriously prepared, which give them special facilities for doing the work rapidly and well. So collecting uncontested debts was formerly the staple of many a lawyer's practice. The general abolition of imprisonment for debt about the middle of the nineteenth century rendered the process much more difficult and the fees less, and of late years great collection agencies, generally corporations, have sprung up, with an extensive system of correspondents among members of the bar, by whom most suits of such a nature are now brought under an agreement to divide their fees with the central bureau. Until the last half of the nineteenth century there were probably no lawyers in this country whose average net income from year to year was equal to that of the leaders of the English bar. In 1806 there was but one lawyer in New England with an annual professional income of $10,000: until about 1860 there was none in Connecticut, and probably not over a hundred in the entire country.[Footnote: Parton, "Life of Aaron Burr." 153; Great American Lawyers, III, 55.] In 1827, William Wirt was informed by Justice Thompson of the Supreme Court of the United States that "six, eight, and ten thousand dollars is considered great practice in New York and ten thousand dollars the _maximum_."[Footnote: Kennedy, "Memoirs of William Wirt," II, 209.] Thirty years later the same was true, except that twenty thousand dollars had then become the highest annual average, and that but of a very few.[Footnote: Parton, "Life of Aaron Burr," 153.] Daniel Webster earned from $12,000 to $20,000 when at the height of his career.[Footnote: Harvey, "Reminiscences of Daniel Webster," 84.] The Civil War was the occasion of many important business enterprises, and gave rise to much litigation. It brought also a great increase of wealth to the North and West, and new and greater investments of Northern capital in the South. From that time the business of the leading lawyers in every State became more remunerative. Incomes of $20,000 and $25,000 were occasionally earned in the smaller States, and of four or five times as much in the larger ones.