Published in Psyche: A Journal of Entomology, in 1959, in volume 66, issue 4, pages 63-69
Created: 2016-06-19, modified: 2016-06-19![](https://www.biodiversitylibrary.org/pagethumb/52991736,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991737,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991738,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991739,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991740,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1
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Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991746,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991751,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991733,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1-3
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991801,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991805,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991813,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1877, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991817,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1883, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991819,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1883, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991791,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991794,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991795,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1
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Published in Asa Gray correspondence. Senders B-Ba, in 1884, pages 1
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Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991824,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1888, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991826,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991792,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991800,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991782,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991783,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991760,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
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Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1
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Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991766,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991767,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
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Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1-2
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Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1-4
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Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991758,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991759,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991827,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991828,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/52991830,60,60)
Published in Asa Gray correspondence. Senders B-Ba, in 1890, pages 1-2
Created: 2017-06-24, modified: 2017-06-24