...In the wild state sand and grit, entangled in the roots ofplants, help in the work of attrition, and, according to ProfessorW... 
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...This was the attrition of likeminds, making suggestions to one another, criticising, comparing, andreasoning...
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
...The rocks are smoothed with the attrition of thealchemy of years...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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