Letter from Michael Heidelberger to E. J. Crane, Chemical Abstracts

In his response to an invitation by E. J. Crane, the editor of Chemical Abstracts, to become an assistant editor for the field of chemical pathology, Heidelberger offered instead to edit a new section on immunochemistry, and briefly reviewed the state of the field. He had begun abstracting for Chemical Abstracts as a graduate student, an activity he continued until the late 1910s.