“Now they got down to the mouth of the Milk River on August 4th, and they reached the mouth of the Yellowstone on August 7th. And there what do you suppose they found? Was Clark there ahead of them, or was Lewis to wait for Clark?”

“I know!” said Jesse. “Clark beat them down. He left a letter for them, didn’t he?”

“That’s just what he did, and this time he didn’t leave it on a green stick for a beaver to carry off, either.

“No, just as if he had stepped to a post-office window and asked for a letter, Lewis found this note awaiting him, telling him Clark had been there for several days and would wait for them a few miles down the river, on the right-hand side. They were at this time making ninety miles a day—one hundred miles on the last day of their travels.

“Now it would seem that Clark was taking a good many chances, because all he had done was to write a note which might have been lost, and to scratch a few words in the sand which might have been washed out. But the luck of Lewis held until August 11th. On that day, as you remember, he was accidentally shot through the hips by one of his men while hunting elk, so that when, on August 12th, he finally overtook Captain Clark, Lewis was lying in his boat, crippled. All through the trip Lewis had had many more dangerous situations and narrow escapes than Clark had.

“In this way, traveling many times faster coming east than they had going west, these two young men, and all of their widely scattered parties, met in this singular reunion, at no place in particular, without ever having had any reason in particular for hoping they ever would meet at all!

“But they did hope. And they did meet. And if you put it to me as an engineer, young gentlemen, I shall say that was the most extraordinary instance of going through unknown country on workmanlike basis I ever heard of in all my life! Nor do I think all the world could produce its like.”

They sat in wondering silence for a time, marveling at the perfect ability shown by these young army officers in this formerly wild and unknown country. Uncle Dick closed the pages of his Journal, which he had been following through rapidly, and seemed inclined to talk no further.

“You tell it, Billy!” said Jesse, turning to Billy Williams, who had been an attentive listener on the opposite side of the table.

“You mean that I shall bring up the Clark story?”