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To observe the granules’ movements, Brangwynne squeezed worm gonads that harbor the structures between two microscope cover slips.

He and his colleagues removed the organs of Corti, home of the hair bundles, from the ears of mouse pups, and cultured them on microscope-slide cover slips.

From then on, she had to wear socks and long pants to bed under her nightgown -- even in the summer -- lest the bed cover slip off and expose here bare skin to her stepfather.

I was led to this after inspecting and rejecting four ounces of microscope cover slips, a most wearisome process.

I then separated the ether carefully from the rest of the blood mixture and put a few drops of it on a slide, covered them with a cover slip and sealed the edges with balsam.