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Published in Asa Gray correspondence. Senders Ga-Go, 1835-1891 (inclusive), in 1857, pages 1-2

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Published in Asa Gray correspondence. Senders Ga-Go, 1835-1891 (inclusive), in 1850, pages 1-2

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Published in Nautilis, in 1926, in volume 39, pages 140-141

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