div class=trans-pagebuttonPage 1button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5page1jpg target=_blank amp-img class=trans-thumb alt=Page 1: If two out-of-round surfaces rub together in a regular fashion over a period of time the high points will tend to wear down and the surfaces will tend toward surfaces of revolution src=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 2button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5page2jpg target=_blank amp-img class=trans-thumb alt=Page 2: If two out-of-round surfaces rub together in a regular fashion over a period of time the high points will tend to wear down and the surfaces will tend toward surfaces of revolution src=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 3button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5page3jpg target=_blank amp-img class=trans-thumb alt=Page 3: If two out-of-round surfaces rub together in a regular fashion over a period of time the high points will tend to wear down and the surfaces will tend toward surfaces of revolution src=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 4button div class=trans-image a href=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5page4jpg target=_blank amp-img class=trans-thumb alt=Page 4: If two out-of-round surfaces rub together in a regular fashion over a period of time the high points will tend to wear down and the surfaces will tend...