VEIT, PHILIP. Portrait of Veit 136 The Arts introduced into Germany by Christianity 137 The two Marys at the Sepulchre 139 WAPPERS, GUSTAV. Portrait of Wappers 303 The Sacrifice of Burgomaster van der Werff at the Siege of Leyden 305 The Death of Columbus 307 WATTEAU, ANTOINE. Portrait of Watteau 56 La Partie Carrée 57 The Music Party 73 The Return from the Chase 74 INTRODUCTION The historian who wishes to relate the history of painting in the nineteenth century is confronted with quite other demands than await him who undertakes the art of an earlier period. The greatest difficulty with which the latter has to cope is the deficiency of sources. He manifestly gropes in the dark with regard to the works of the masters as well as to the circumstances of their lives. After he has searched archives and libraries in order to collect his biographical material, the real critical problem awaits him. Even amongst the admittedly authentic works, those which are undated confront those whose chronology is certain. To these must be added those nameless ones, as to whose history there is a doubt; to these again, those whose origin is to be ascertained. It needs a quick eye to separate the schools and groups, and finally to recognise the notes which are peculiar to the master. With none of these difficulties is the historian of modern art confronted. The painters of the nineteenth century have very seldom forgotten to attach a name and date to their works, and the circumstances of their lives are related with an accuracy that was, earlier, rarely the lot of the foremost men in history. It is all the more difficult, face to face with such a chaos of pictures, to discover the spiritual bond which connects them all, to construct a building out of the immense supply of accumulated bricks, the piled-up mass of rough material. The evolution of modern painting is more complicated and varied than that of the art of an earlier period, just as modern life itself is more complicated and varied than that of any previous age.