When the usual swim was proposed, instead of starting dolefully for home as had been his wont, Biscuit slapped the proponent on the back and cried: "All right! I'm with you!" "Huh?" asked Sube with a blank stare. "Uh-huh, me! Why not?" "Your mother gone away?" "No, course she ain't!" "Maybe you've learned to swim on dry land!" taunted Sube. "I sure have!" replied Biscuit with a lofty swagger. "I can swim better'n any you fellers. I can do the trudgeon and the crawl and the scissors and--" A howl of derision went up. "Shut up a minute, you fellers!" shouted Sube. "I want to ask 'im some'pm." Sube was not familiar with the terms Biscuit had so carelessly torn off, but he was none the less impressed. He had a strong suspicion that there was something back of it all. "Who showed you how?" he asked, concealing with an effort the real extent of his interest. "I took lessons!" "Who of?" "Oh, a perfessional." "Yes, you did!" "Well, I did, and I can prove it!" "Yes, you can! How can you prove it?" "I'll show you!" cried Biscuit as he started for home. "You wait right here till I get back!" "He won't be back," predicted Cottontop; "let's get a move on us." "Aw, we might as well wait around a few minutes," said Sube. "There's some'pm funny about this. He never acted like that before." They had not long to wait before Biscuit was seen coming towards them on a run. In his hand he carried what looked like a small club, but proved on closer examination to be a mailing-tube. By means of a moistened finger that left Bertillon imprints wherever it touched, Biscuit extracted and unfurled before his skeptical companions the cherished roll of vegetable sheepskin. "There!" he declared proudly. "I guess that'll prove it!" "Di-plo-mer--" pronounced Sube. "Diplomer's right!" boasted the graduate. "This here's my diplomer in plain and fancy swimmin' and divin'! It was rewarded to me by the Inter-State Cor'spon'ence School of Chicago, Ill'noise." Sube was impressed, deeply impressed; but he was not convinced. "It's a diplomer all right," he admitted; "but can you _swim_?" "Can I _swim_? _Can_ I? Say, you jus' watch me! Watch me!" Biscuit gaily began to make swimming motions with his hands, as he capered about. "But I mean in the water!" insisted Sube. "So do I!" shouted Biscuit jubilantly. "You don't mean to say that you took lessons in the water!" "Oh, no-o-o-o! Course not!" "Then where'd you learn?" "Right on top of the kitchen table! You see--" "Never mind about that," interrupted Sube with obvious relief. "We'll go right down to the swimmin'-hole and you can show us all your little tricks." "Wait till I take my diplomer home!" "Better not," cautioned Sube. "You might need it when you get in the water!" "Is that so! Well, you jus' watch me!" shouted Biscuit as he started for home with his precious possession. "_Watch_ me!"