Word: knoll
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Dates: during 1970-1979
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Then how and when did free oxygen begin appearing in the atmosphere? A clue to the answer has been found in the incredibly old sedimentary rocks of South Africa's eastern Transvaal by Harvard's Elso Barghoorn and Andrew Knoll, now with the Oberlin College department of geology. To the naked eye, the 3.5 billion-year-old rocks Barghoorn and Knoll collected during a visit last year revealed no traces of early life. But the scientists soon uncovered the stones' secrets. Returning to Harvard with samples of the rock, the pair used a diamond cutter...
Barghoorn and Knoll believe that their primitive fossils-the oldest direct evidence of terrestrial life-are the ancestors of modern blue-green algae or photosynthetic bacteria, both of which convert carbon dioxide into food and oxygen. If they are correct, these organisms 3.5 billion years ago were already pumping into the atmosphere the oxygen upon which most of today's terrestrial life now depends...
...Passamaquoddies are Catholics. Some say they are Catholics before they are Indians. The reservation's public school, which holds classes up to the eighth grade, was a parochial school five years ago. Nuns still work at the school. Peering down on the school and the adjacent rectory from a knoll is the old iron cross. But there is no hostility...
...chase crew-Dougie's father and Lewis-follows by car, keeping in touch by CB radio. We have been aloft in the midsummer air for nearly an hour, using a tank of propane and traveling eight miles, when Dougie spots a convenient grassy knoll. He releases the hot air and drops us gently to the ground. Now it is time for the champagne...
Park has a virtual cornucopia from which to choose his designated hitter. Knoll, who slugged five round-trippers from that spot a year ago, would seem to have the position locked. However, Epstein and Stenhouse are also knocking on the D.H. door...