"We'll try and get at some of the secrets to
-morrow," he said, "but it will mean early rising, as the trap is to be hauled at slack water."
Acting on the hint, Colin bade his host good-night, but his sleep was fitful and restless. The sudden passionate speech of the grave scholar had been a revelation to the boy, and whereas he had felt a desire for the Fisheries Bureau before, he knew now that it had been largely with the sense of novelty and adventure. But the professor's words had given him a new light, and he saw what an ideal might be. He felt like a knight of the olden time, who, watching his armor the vigil before the conferring of knighthood, had been granted a vision of all his service might mean. He knew that night that the question he was to ask his father could have but the one answer, that the great decision of his life was made, his work was cut out to do.
Shortly after daybreak the next morning, Colin was called and he dressed hurriedly. After a hearty breakfast in which steel-head trout figured largely, he went down to the pier on the water and was not sorry to have the chance of showing his host that he was a good canoeist.
"How large is the work of the Bureau now, Professor?" asked Colin, as the light craft shot
down the magnificent stretches of the Columbia River.
"Over three and a half billion eggs and small fish were distributed last year, if I remember rightly," was the reply. "Of course, a large proportion of these fish did not reach maturity, but perhaps half a billion did so, and half a billion fish is an immense contribution to the food supply of the world."
"But aren't there always lots of fish in the sea?" asked Colin. "When you come to compare land with water it always looks as though there must be so many that the number we catch wouldn't make any sort of impression on them."
"Think a bit," said the professor. "You've just come down from the Pribilof Islands. How did you find matters up there? Had the catching of seals been harmful, or were there so many seals still in the sea that it didn't matter what line of hunting went on?"
"Of course, pelagic sealing had nearly killed off the entire species," said Colin, "but, somehow, fish seem different. Oh, yes, I know why. Seals only have one pup at a time and fishes have thousands of eggs."