worm-holes nearly as large as swan-quills

Tags: earthworms, soil
Categories: Comparisons

Examples of quotidian comparisons in science writing:

"When digging in this field, after a long drought, I noticed, that one single clod of earth, about as large as a man's two hands, was penetrated by eight upright, cylindrical worm-holes, nearly as large as swan-quills, so that I could see through them."

Charles Darwin (1844) On the origin of mould. Gardeners' Chronicle and Agricultural Gazette

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Author: Keith

Former school and college science teacher, teacher educator, research supervisor, and research methods lecturer. Emeritus Professor of Science Education at the University of Cambridge.