J. J. Woodward, the Philadelphia Centennial, and Medical Imaging in 19th Century America.

In his travelogue of the 1876 Philadelphia Centennial, What Ben Beverly Saw at the Great Exposition, James L. Dale described an exhibit that impressed him with both wonder and horror: a set of photographs documenting the outcomes of surgical operations that suggested procedures "of the most fearful character, which would seem impossible to perform, and the poor patient survive." What Dale described was the US Army Medical pavilion, where the displays were designed to convince domestic and international visitors of the professionalism and innovation of American medicine and in particular to highlight the contributions of military medicine.