From the letter-files of S. W. Johnson
Subtitle: professor of agricultural chemistry in Yale university, 1856-1896, director of the Connecticut agricultural experiment station, 1877-1900
By: ed. by his daughter Elizabeth A. Osborne.
Contributors: Osborne, Elizabeth A. (Johnson), 1862-
Publisher: Yale University Press; [etc., etc.]
Published: 1913
Place of publication: New Haven
Subjects: Agricultural chemistry