1. The two new cholagogues: Euonymus atropurpureus (Wahoo) and Iris versicolor (blue flag) Author(s): John Wyeth & Brother, author. Publication: [Philadelphia?] : [John Wyeth & Bro.?], [1880?] Subject(s): Cholagogues and CholereticsEuonymusIridaceaePlant Extracts -- therapeutic use