"Yes, sir, of course."
"Now, my boy," the other said impressively, "a few years ago, it was found out that there were trout in these streams above falls which would be absolutely impassable to any fish. How could they get there? It was a riddle. The only possible answer was that the fish must be older than the falls, that the stream had worn away its bed, bit by bit, until an impassable barrier from below had been created, but that the trout had gone on in the upper creeks, developing in their own way, for hundreds of centuries.
"The rocks over which these streams flow are a granite formation, very brightly colored, principally gray and red. The swiftly-flowing stream removes the débris, so that the clear water flows limpidly over this gorgeous coloring. In such a stream, where the natural enemies of the trout
are the fish-hawk and the eagle, it is essential as a matter of protection that the fish should resemble the hue of the bottom, and accordingly, the most superb coloring in the world is theirs. But each of the three small streams that are cut off from the rivers below are also separate from each other, and in the ages during which this has been so, each of these streams has seen a different coloration develop in the trout. All are bright golden, all have orange fins and an orange stripe along the side, all are spotted with black, but they vary in many small particulars. Nowhere else in the world but in these three creeks—Volcano Creek, Soda Creek, and Aqua Bonita or Gracious Water Creek—can these fish be found; nowhere else would they retain their gorgeous coloring.
"Accordingly, the United States Government sent a party up to the very summit of the Sierra Nevada to study these fish, and of this party I was one. It was there that I saw the most marvelous storm that has perhaps ever been recorded. An electrical disturbance of great magnitude was passing over the country at the time, and it reached its vivid climax on the Sierras. Our camp was struck, several animals killed, and a couple of the teamsters severely injured, but for
nearly two hours the whole world seemed set in a coronal of lightning flashes.
"We stayed up there with the trout for several weeks, and when we reached Washington, there was not a man in the party but was determined to fight, heart and soul, to save these rare fish from extinction. One or two summers during which 'fish-hogs' were permitted on the upper reaches of the Kern River, would have destroyed the trout forever, and, indeed, in one month a party of those reckless near-sportsmen destroyed almost one thousand of them. But the President's interest was enlisted, the Bureau of Fisheries made a firm stand, and to-day the region containing these most exquisite and most wonderful of all fresh-water fish is a part of the Mount Whitney National Park, and the golden trout are saved from extinction."
"Bully for the Bureau!" cried Colin. "Every time I learn more of its work, it seems to be doing something finer."
Following out the lad's interest in the whole trout question, Dr. Jimson taught him nearly all there was to know about the various members of the salmon and trout family, one of the most important food-fish groups of the world. Both
being ardent fishermen, they were startled, however, by the sudden announcement: