Abstract
THE scientific history of the freshwater rhizopods begins only a little anterior to the Declaration of Independence. Rösel (1755) knew of the existence of such forms, which puzzled him. Linnæus (1760) named one of them Volvox chaos;—polymorpho-mutabilis, the form of whose body was Proteo inconstuntior. But with the increase in the powers of the objectives used with the microscope, so did the knowledge of these forms increase. Ehrenberg and Dujardin led the way to a brilliant series of discoveries, which have been continuous, and never more numerous than during the last twenty years.
United States Geological Survey of the Territories—Freshwater Rhizoftods of North America.
By Joseph Leidy, Professor of Anatomy in the University of Pennsylvania and of Natural History in Swarthmore College, Pennsylvania. (Washington: Government Printing Office, 1879.)
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W., E. United States Geological Survey of the Territories—Freshwater Rhizoftods of North America . Nature 22, 165–167 (1880). https://doi.org/10.1038/022165b0
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DOI: https://doi.org/10.1038/022165b0
