"I noticed ever so many factories near here."
"There are a great many here because power is so cheap, but they are also able to send electric power many miles away. Buffalo is lighted by electricity from Niagara, and there are lots of factories all around here that take their power from the Falls."
"What becomes of the water that makes these turbines go?"
"When you see it come out of a small tunnel below the Falls and compare it with the amount that is still tumbling over the Falls you'll be wonderstruck that so small an amount can do so much work. We'll see the place later."
Taking the car again they completed their journey to the town and the girls could hardly wait to see the great cascade which they heard roaring in the distance. Katharine led them first to the very edge of the American Fall. The thick green water slid over the brink almost under their feet in a firm, moving wall, and they had to lean over to see it break into white foam on the rocks below. Like a great horseshoe ran the upper edge, the centre hollowed back by centuries of wear from the swift stream that pressed out of Lake Erie through the ever-narrowing channel toward Lake Ontario.
Over the bridge they went to Goat Island where they seemed on a level with the swirling mass that bore down directly upon them. Gretchen gave an occasional scream of anxiety.
"Dis water it makes me frighted," she confessed.
The girls raced over the islands called the Sisters and every sight on the American side except the Gorge ride was behind them by luncheon time.
Refreshed by food they started out again.
"We'll go down the Gorge on the American side," explained Katharine, "and come back on the Canadian side. I've tried both ways and I like that best."