P. 185, last paragraph: The following information is furnished by the courtesy of Prof. Winslow Upton, director of Ladd Observatory, Brown University: "The first and second methods enumerated in this quotation refer to that now known as the Method by Lunar Distances, which was already in use in the sixteenth century. In the former the position of the moon was to be determined by its measured distance from some star, in the latter from the sun. Since risings and settings at an assumed horizon are specified, it is probable that the distance between moon and sun was determined by the time interval of their respective risings and settings. The fourth method is that still known by the same name. The statement of the third method is obscure. It may mean that the longitude was to be found by a measured distance on the surface of the earth from a station whose longitude was already known. This distance could be turned into difference of longitude if the length corresponding to a degree of longitude in that latitude were first determined. This method is used today in geodetic operations." P. 218, note 184: The India House of Trade (Casa de Contratación) was created by a decree of Isabel of Castilla (January 14, 1503) as both a commercial board and a tribunal; and it partly replaced the admiralty court which had been established in Sevilla since the thirteenth century, the quarters of the latter (in the old Alcázar) being assigned to the India House when the latter was first organized. The powers of the India House increased greatly in the course of time, and it was subordinate to no council save that of the Indias; in 1583 a chamber of justice was added to it. This institution was, by a decree of 1717, removed in the following year to Cádiz. An interesting study on the India House is found in Los trabajos geográficos de la Casa de Contratación (Sevilla, 1900), by Manuel de la Puente y Olea. This work--prepared by careful examination of the documents in the archives--is devoted to the early voyages of discovery that were undertaken under the auspices of the India House and its navigators, ending with that of Loaysa (1525); the geographical studies made by its cosmographers, and other scientific researches connected with its enterprises; and the enrichment of the fauna and flora of the New World due to the conveyance thither of useful plants, fruits, and animals through the agency of the House. See also the detailed account of this institution, its organization, policy, and methods, by Bernard Moses, in Annual Report of American Historical Association, 1894, pp. 93-123: a large part of that paper also appears in his Establishment of Spanish Rule in America (N. Y., 1898), chap. iii. P. 275, note 201: For "inflicted" read "afflicted."