Fredericksburg defeat, [487], [488];

Hooker succeeds Burnside, [487]-[490];

naval operations, [490];

Chancellorsville defeat, [492]-[494];

defeat, dissatisfaction of North, [493]-[494];

turning-point of war, [496];

Pennsylvania invaded, [497];

Northern fear of Lee, [497];

Hooker succeeded by Meade, [497]-[498];

Gettysburg, [498]-[499];