first call for volunteers, i. [252], [255];
protection of Washington, [255];
passage of Massachusetts troops through Baltimore, [256]-[258];
proclamation of blockade, [283];
naval situation, [283], [284];
second call for volunteers, army increased, [291];
military episodes of 1861, [298], [299];
campaign of Bull Run, [300]-[302];
character and organization of Northern armies, [304]-[308];
McClellan commander-in-chief, [310];