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A. C. Billups
Published in Nautilis, in 1914, in volume 28, pages 34-35
Created: 2013-09-28, modified: 2013-09-28
Obituary
Published in Ibis, in 1901, in volume 1, issue 2, pages 347-353
Created: 2024-04-02, modified: 2024-04-02
Lighting in Its Relation to the Eye
Published in Proceedings of The American Philosophical Society, in 1918, in volume 57, issue 220, pages 440-478
Created: 2017-01-01, modified: 2017-01-01
Notes and News
Published in American Fern Journal, in 1915, in volume 5, pages 11-15
Created: 2017-04-23, modified: 2017-04-23