On returning to the city they met Andy Hume, who had been interviewing a number of miners who had just come in from one of the mining districts.

“They’ve struck two new mines,” he said, “and both good payers. I pumped ’em pretty thoroughly and I think I can strike something good if I go right at it. I wish the boat sailed to-day instead of to-morrow.”

“You’ll have to be patient,” said Professor Strong, with a smile. “I fancy you will find plenty of unexplored territory when you get there.”

With so many things to look at the time slipped by quickly. An hour was spent the next day at one of the cigar factories, where the boys watched the workmen roll cigars and pack them in boxes. But the smell was so strong that Frank and Sam came away more than half sick.

“I can’t imagine how they can stand it to work in such a place,” said Frank. “It’s enough to sicken a dog.”

“It is what they get used to,” said Mark. “But I must say I didn’t like it myself.”

At last came the time to bid adieu to Bolivar, which in former days was called Angostura. They went aboard the little paddle-box steamer loaded with bundles, for they had left their trunks at the hotel, to remain there until their return.

“I suppose that’s the last of civilization,” remarked Frank. “Now for the forests and a good time hunting, fishing, and camping out.”

“You mustn’t be quite so fast,” said the professor, with a laugh. “It will be at least a week before we reach any place for hunting and fishing. Of course we could stop off on the way, but I take it you boys wish to get right into the mountains.”

“So we do,” came from several of the others.