"What is it, Dan'l?"
"Why, Mistah Ross, it ain't no use for yo' to measure that! Yo' done forgot that a shadder don't stay still."
"Why not?"
"A shadder keeps movin' round. Yo' ought to have thought o' that," he added seriously.
"We thought of it, all right, Dan'l," Anton answered. "See, the line of the shadow's already on one side of the tape. Try it again, Ross!"
"Four feet, five inches and three quarters," came the reply.
"What fo' makes that shorter?" queried the negro.
"Dan'l," said the younger boy, reprovingly, "why don't you use that thick head of yours a little? When you get up in the morning, isn't your shadow longer than it is in the middle of the day?"
"Sho', it stretches away off yonder!"
"And in the evening?"