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W. R. Abercrombie: " Crossing the Valdez Glacier, Alaska, at Bates 

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W. C. Alden: "The Chicago Folio." "Geol. Atlas of the United 

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Ralph Arnold: "The Tertiary and Quaternary Pectens of Califor- 

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W. W. At wood: "Glaciation of San Francisco Mountain, Arizona," 

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H. Foster Bain: "Preglacial Elevation of Iowa," "Proceedings, 

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E. S. Balch: "Glaciers or Freezing Caverns," Phila., Allen, Lane 

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S. P. Baldwin: "Recent Changes in Muir Glacier," "American 

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H. M. Bannister: "The Drift and Geologic Time." "Journal of 

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E. H. Barbour: "Ancient Inhabitants of Nebraska " "Records of 

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