Bill certainly knew an astonishing lot about the creatures of the wild. But also, like all guides who are worth their salt, he knew an astonishing lot of things that weren't so. He had imagination, or he would never have done for a guide. When he knew--which was not often--that he did _not_ know a thing, he could put two and two together and make it yield the most extraordinary results. He felt it one of his first duties to be interesting. And above all, he felt it his duty to be infallible. No one could be expected to have implicit faith in a guide who was not infallible. He never acknowledged insufficient information about anything whatever that pertained to the woods and waters. Also he had a very poor opinion of what others might profess to know. He felt convinced that so long as he refrained from any _too_ lively contributions to the science of animal life, no one would be able to discredit him. But he was conscientious in his deductions. He would never have permitted himself to say that blue herons wore gum boots in wading, just because he had happened to find an old gum boot among the reeds by the outlet of the lake, where the herons did most of their fishing. He remembered that that gum boot was one of a pair which had been thrown away by a former visitor to Silverwater. Uncle Andy, on the other hand, knew that there was an astonishing lot _he didn't_ know about animals, and he didn't hesitate to say so. He was a reformed sportsman, who, after spending a great part of his life in happily killing things all over the earth, had come to the quaint conclusion that most of them were more interesting alive than dead, especially to themselves. He found a kindred spirit in the Babe, whose education, along the lines of maiming cats and sparrows with sling shot or air gun, had been absolutely neglected. Uncle Andy was wont to say that there was only one man in all the world who knew _all_ about all the animals--and that he was not Andrew Barton, Esq. At this, Bill would smile proudly. At first this modesty on Uncle Andy's part was a disappointment to the Babe. But it ended in giving him confidence in whatever Uncle Andy told him; especially after he came to realize that when Uncle Andy spoke of the only man in the world who knew _all_ about animals, he did _not_ mean Bill.