J. Chr. Bay, librarian, born at Rudkobing, Denmark, October 12, 1871. Student of natural science at the University of Copenhagen. Assisted at Missouri Botanical Garden, San Louis, 1892-94; with the State Board of Health, Iowa, 1894-1899; President of Ashland Peoples High school 1900-01; Assistant librarian at Library of Congress, Washington, D. C. 1901-05; Medical Reference Librarian and Supervising Classifier at John Crerar Library in Chicago since 1905.

He has published many scientific and bibliographic articles and several books both in English and Danish.

(Mr. J. C. May is now the chief librarian of the John Crerar Library. The Reference Librarian, Mr. J. Rose, in the General Reading Room is also a Dane.)