Mr. Boutwell was one of the counsel for the government of Hayti in the celebrated case of Antonio Pelletier against that republic in 1885, and made a most interesting oral argument. This case was a romance of the sea as well as of international importance, involving a claim of $2,500,000 and questions of piracy and slave trading. In 1893-94 Mr. Boutwell was retained as counsel on the part of Chili to defend their government before an international commission created under a treaty with the United States signed August 7, 1892. About forty cases were presented, involving $26,300,000, and the final report was submitted April 30, 1894. Among the more important were those of Gilbert B. Borden, No. 9, and Frederick H. Lovett et al., No. 43, against the Republic of Chili. These as well as nearly all the others were argued by him with a brilliancy and eloquence that has marked his entire career at the bar. Of the five courts martial that were held in Washington between 1880 and 1892 for the trial of officers of the army and navy Mr. Boutwell was retained for the defence in four cases, in three of which the accused were convicted and in the other honorably acquitted. In 1886 he was retained by the Mormon Church to appear before the judiciary committee of the House of Representatives against the Edmunds bill, which was modified in particulars pointed out in the discussion. The same year he appeared before the House committee on foreign affairs for the government of Hawaii in opposition to the project for abrogating the treaty of 1875.