IT WAS JUST LIKE POP to get excited about a problem of that nature when there were so many other things crying to be done. But Bobby was surprised, from time to time, to discover that in a pinch Pop could bob up with an answer to a stumping question quite unrelated to the field of empiric science. It was Pop who, when d**k was having trouble making their minute supply of nails and braces do for the construction of the cabin, offered the suggestion that the joists be joined by hollowing. It worked. End logs dove-tailed beautifully; the cabin walls stood firmer and looked neater than if laboriously spliced together with metal. It was Pop, too, who did something about the plate problem. Unable to bring the plastics with them in their hasty flight from the sunken Cuchulainn, the Moseley fami

