Desmids of the United States and List of American Pediastrums with Nearly Fourteen Hundred Illus. on Sixty-Four Colored Plates
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Diatomacea Of North America
Illustrated With Twenty-Three Hundred Figures From The Author'S Drawings On One Hundred And Twelve Plates »

Fresh-Water Algae of the United States
(Exclusive Of The Diatomaceae) Complemental To Desmids Of The United States ... One Hundred And Fifty-One Plates ... Including Nine Additional Plates Of Desmids »

Desmids Of The United States And List Of
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Fresh-Water Algae Of The United States:
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Fresh-Water Algae Of The United States (
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Desmids of the United States and List of American Pediastrums with Eleven Hundred Illustrations on Fifty-Three Colored Plates
 »