Macquer's rule
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Marie the Jewess
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Marsh apparatus and test
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Marsh, James
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McGowan, Chris
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Medical College of Ohio (Cincinnati, Ohio)
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Meidinger cell
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Mendel, Lafayette Benedict
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Microscopes
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Middlecamp, Catherine
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Mineral samples
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Mitchel, Ormsby
|
Mohr's Salt
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Mohr, Friedrich, 1806-1879
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Moir cell
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Moor's head
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Mortars and pestles
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Mulliken, Samuel Parsons, 1864-1934
|
Naphthalene
|
Nernst, W.
|