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" They moved forward owing to the motion of their tails like that of a snake or an eel swimming in water; but in the somewhat thicker substance they would have to lash their tails at least 8 or 10 times before they could advance a hair's bredth. "
Sperm Counts: Overcome by Man's Most Precious Fluid - Page 25
by Lisa Jean Moore - 2008 - 214 pages
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Medicalized Masculinities

Christopher A. Faircloth - Health & Fitness - 2009 - 273 pages
...significance of sperm was not yet clearly articulated, the excitement of this discovery is evident: Immediately after ejaculation ... I have seen so great...least 8 or 10 times before they could advance a hair's breadth. (Leeuwenhoek as quoted in Kempers 1976) This first scientific description of sperm, "the discovery,"...
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