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Houghton Mifflin Co., Boston, 1950.

Giese, A. C., “The Photobiology of Blepharisma,” talk at the third annual meeting, American Society for Photobiology, June 23, 1975.

Goethe, Johann Wolfgang von,

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translated by Charles Lock Eastlake, John Murray, London, 1840.

Goldstein, Kurt,

The Organism,

American Book Co., New York, 1939.

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