People who try to tell you what the blitz was like in London start with fire and explosion and then almost invariably end up with some very tiny detail which crept in and set and became the symbol of the whole thing for them. . . . "It's the glass," says one man, "the sound in the morning of the broken glass being swept up, the vicious, flat tinkle." ... An old woman was selling little miserable sprays of sweet lavender. The city was rocking under the bombs and the light of burning buildings made it like day. . . . And in one little hole in the roar her voice got in—a squeaky voice. "Lavender!" she said. "Buy Lavender for luck."The bombing itself grows vague and dreamlike. The little pictures remain as sharp as they were when they were new.