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Published online by Cambridge University Press: 12 April 2017
1 Mr. Hackworth mentions as in that group Miss Marjorie Whiteman, Mr. Durward V. Sandifer, Miss Katherine B. Fite, Mr. Sidney D. Spear, Mr. John H. Halderman, Mr. William W. Bishop, Jr., Mr. John Maktos, Mr. Frederick M. Diven, Mr. E. Barbour Hutchison, and Miss Alberta Colclaser, as collectors and analyzers of vast quantities of material.