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Freshwater Hydroids
Published in Transactions of The American Microscopical Society, in 1913, in volume 32, pages 146-151
Created: 2013-03-11, modified: 2013-03-11
Freshwater sponges from Mexico
Published in Annals And Magazine of Natural History, in 1886, in volume 17, pages 170-172
Created: 2011-09-29, modified: 2011-09-29
Fresh-water sponges from Mexico
Published in Proceedings of The United States National Museum, in 1885, in volume 8, pages 587-589
Created: 2011-06-30, modified: 2017-01-06
Sensitive Organs in Asclepias
Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1878, in volume 30, pages 293-296
Created: 2013-03-02, modified: 2018-04-12
Three more Fresh-water Sponges
Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1882, in volume 1882, pages 12-14
Created: 2011-06-01, modified: 2021-04-05
New Californian fungi
Published in Erythea, in 1893, in volume 1, pages 145-147
Created: 2017-10-18, modified: 2017-10-18
New west American fungi
Published in Erythea, in 1893, in volume 1, pages 197-206
Created: 2017-10-18, modified: 2017-10-18
Note on Thais (Purpura)
Published in Nautilis, in 1911, in volume 25, pages 30-31
Created: 2013-09-28, modified: 2013-09-28
Leaves from a diary
Published in Nautilis, in 1890, in volume 3, pages 143-144
Created: 2013-09-28, modified: 2013-09-28
The Genus Corallorhiza
Published in Botanical Gazette, in 1893, in volume 18, issue 5, pages 166-170
Created: 2017-03-14, modified: 2017-03-14
A Botanical Cyclopedia
Published in Botanical Gazette, in 1906, in volume 41, issue 1, pages 76
Created: 2017-03-14, modified: 2017-03-14