An American and a Scotsman were walking one day near the foot of one of the Scotch mountains. The Scotsman, wishing to impress the visitor, produced a famous echo to be heard in that place. When the echo returned clearly after nearly four minutes, the proud Scotsman, turning to the Yankee exclaimed:
"There, mon, ye canna show anything like that in your country."
"Oh, I don't know," said the American, "I guess we can better that. Why in my camp in the Rockies, when I go to bed I just lean out of my window and call out, 'Time to get up: wake up!' and eight hours afterward the echo comes back and wakes me."