National Geographic : 1957 Aug
faster than the chang ing current? A cheer went up. A few moments before the reversing tide would have dragged him upon the jagged rocks, Frank Martin reached the other shore. A man's endurance and careful planning had defeated Fundy's mighty tides. Our family had a feeling of satisfaction as we prepared to leave this extraordinary part of the world. Our specimen tubes were carefully packed. So were the rubber boots that had measured off so many miles of mud flats. One painful task remained: to winnow the children's rock col lection to a wieldy weight. "We can do without this," I said, discarding a fist-sized fragment. "But that's my pret tiest one!" Paul howled in anguish. "And these aren't necessary," I continued. "Oh, no! " wailed my daughter. "Any rock but that one!" So instead of bidding goodbye to the rocky shores of Fundy, we took 10 pounds of them home with us. 192 Experts Read a Rocky Autobiography Written by the Sea Ancient seas built the shores that Fundv's tides now erode. Layers of sedi ment on the shallow bottom became stone under the water's weight; geological upheavals turned them on end to form cliffs like these near Parrsboro. Two mineral collectors study ripple marks made by long-forgotten waters.