538.7
Car
O
 Carnegie Institution of Washington. Dept. of Terrestrial Magnetism 
  Ocean magnetic  observations, 1905-1916 and reports on special researches by L. A. Bauer with the collaboration of W.J. Peters [and others] Washington, 1917
   Vii, 447 p. tablas, 28 cm. (Carnegie Institution of Washington. Publication no. 175, vol. 3)

       A la cabeza del título: ´´Researches of the Departament of Terrestrial Magnetism, vol. 3´´