When  Louis Agricola Bauer (q.v.) established the Department of Terrestrial Magnetism (DTM) at the Carnegie Institution of Washington (cv) in 1904, he intended to focus the DTM's efforts strongly on an oceanic magnetic survey. The oceans represented both the largest and the most accessible gap in geomagnetic data. Bauer felt that most of the oceanic data available was not of high enough quality and that it was mainly restricted to coastal waters and trade routes. From 1905 to 1908, the DTM leased a wooden sailing vessel, the brig Galilee. Bauer had the steel rigging replaced with hemp and stripped away as much other iron as possible, but bolts and nails had to stay. The Galilee sailed over 70 000 miles and established 442 magnetic stations, but its most important result was this: The Galilee demonstrated that a completely nonmagnetic ship was necessary to carry on this research.