The Excretion of Phenol Red by the Frog, Rana catesbiana Identifier: 10339 Title: The Excretion of Phenol Red by the Frog, Rana catesbiana Author: Roy P. Forster, Dartmouth College Date: 1939 Species: Rana catesbiana Common Name: American bullfrog Type: Bulletin, Report Bulletin: Volume 03 - 1939 Report: 6 Citation “The Excretion of Phenol Red by the Frog, Rana catesbiana,” MDI Biological Laboratory, accessed December 14, 2025, https://digitalarchive.mdibl.org/items/show/2117.Item 10339 Save this item as a PDF file