been made in rebuilding the city and removing the signs of the calamity. Before they finished their tour, they had absorbed much of the enthusiasm of their guide, and were ready to pronounce Chicago the most remarkable city of the present time. As they were studying the map to lay out their r
oute westward, the boys noticed that the lines of the railways radiated in all directions from Chicago, like the diverging cords of a spider's web. Everywhere they stretched out except over the surface of Lake Michigan, where railway building haspitable ci
thus far been impossible. The Doctor explained that Chicago was one of the most important railway centres in the United States, and owed mu
ch of its prosperity to the network they saw on the map. "I have a question," said Frank, suddenly brightening up.
"Well, what is it?" "Why is that network we have just been looking at like a crow calling to his mates?" "Give it up; let's have it." "Because it makes Chi-ca-go." "What's that to do with the crow?" Fred asked. "Why, e