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The amateur Dutch scientist and prolific lensmaker first observed sperm cells in

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At one time, people believed that sperm cells contained tiny individuals known as homunculi or animalcules.

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Binocular viewing head makes the microscope comfortable for extended viewing.

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Magnification of 40x, x, x and x provides plenty of options for viewing the semen.

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Binocular viewing head makes the microscope comfortable for extended viewing.

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Even for cell counting, I never counted live in the microscope, I used a cell chamber - took a digital shot and counted in photoshop.

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This is also how I tried to assess glycogen levels.

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