William Maddock Bayliss (May 2 1860 - August 27 1924) was an English physiologist. He graduated in physiology from Wadham College, Oxford.

He and Ernest Henry Starling discovered the hormone secretin and the Peristalsis of the intestines. The Bayliss effect is named after him.

He also led to the Brown Dog affair by suing Hon. Stephen Coleridge for libel concerning what he said about Vivisection. Although he won the case Coleridge won support for his cause and gained enough money to coverage the damages.

William Bayliss's wife was Gertrude Starling, sister of Ernest Starling.

External links

• NNDB
• The Bugle
• Biography and bibliography in the Virtual Laboratory of the Max Planck Institute for the History of Science

William Bayliss