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Publication Extents

Not all publications have extents, not all extents are completely accurate
II.-Note on Some Appendages of the Trilobites
Charles D. Walcott
1894, Geological Magazine (1) 246-251
The results of Mr. W. S. Valiant's long search for the appendages of Trilobites have recently been made known by Mr. W. B. Matthew, who described the material sold to the Columbia College of New York by Mr. Valiant. Mr. Valiant informs me that he discovered traces of what he...
The Glaciation of the Yellowstone Valley North of the Park
Walter Harvey Weed
1893, Bulletin 104
The local glaciers of Quaternary times, of which evidences abound throughout the highest portions of the Rocky mountain cordillera, attained an unusually extensive development in that broad elevated region known as the Yellowstone Park. It was indeed the center of a considerable ice sheet whose glaciers spread out and down...