Once more he took the temperature of the steaming sap. "We're going to put some of the sugar in those tin pails and sell it," he continued. "Each pail holds ten pounds. And some we shall pour into those small tin moulds and make little scalloped cakes for our own use. I reckon you can have some of them to take back to college when you go. We'll certainly have a plenty to spare you some, for your father will make a handsome thing out of his sugar this year. I wouldn't wonder but you're being educated on maple-sugar money. You better make your bow of thanks to the trees as you go through the orchard," he added whimsically. CHAPTER IV THE REFINERY Vacation with its country sports came to an end only too quickly, and leaving the New Hampshire hills behind the Carlton family, together with Van Blake, set out for New York where the boys were to make a weekend visit before returning to Colversham. "I wish while we're in New York we could go through your refinery, Dad," Bob remarked to his father. Mr. Carlton glanced at him in surprise. "What set you thinking of that, Bob?" he asked. "You never were interested in sugar making before." "I know it, Father." Bob flushed guiltily. "I ought to have been. But since we have seen maple-sugar made Van and I thought it would be fun to see the process that white sugar has to go through before it is ready for the market." "Van thought so, did he?" queried Mr. Carlton. "Why, yes, he thought so. I believe, though, it was I who suggested it." "Humph!" murmured Mr. Carlton. He mused a moment. "I suppose it would do no harm," he said at last, half to himself. "Harm!" "No, no! Of course not," interrupted Mr. Carlton hurriedly. "The process is an open secret anyway, except perhaps--Oh, I guess it