Thèses présentées a la Faculté des Sciences de Paris pour obtenir le grade de docteur es sciences physiques
Pierre Curie's doctoral thesis on the magnetic properties of matter, submitted to the Faculté des Sciences de Paris and printed by Gauthier-Villars et Fils in 1895 for examiners and physicists. The single plate is a line diagram: an inclined pair of hatched magnet pole pieces labelled E, a horizontal axis, and field-strength curves crossing it, annotated with H, y and dH/dx in script.
