Brown Dog affair
Brown Dog affair
The Brown Dog affair was a major British controversy about vivisection (animal testing) that lasted from 1903 to 1910. It grew out of a public demonstration in which two University College London physiologists, William Bayliss and Ernest Starling, carried out experiments on a brown terrier dog in front of medical students. They said the dog was adequately anaesthetised; critics argued the dog suffered and that the procedures violated rules meant to protect animals.
Two Swedish anti-vivisection activists, Lizzy Lind af Hageby and Leisa Schartau, infiltrated the lectures, photographed the demonstrations, and kept a diary. Their book, The Shambles of Science, claimed the dog was used in multiple experiments and that anaesthesia was not properly used. They also alleged the dog was killed after the experiments. The diary helped trigger a libel case: Bayliss sued Stephen Coleridge, the secretary of the National Anti-Vivisection Society, after Coleridge published material about the diary and critiqued vivisection. In the Old Bailey trial, Bayliss won and Coleridge had to pay damages; the case divided public opinion and raised fierce debate over vivisection.
In 1906, anti-vivisection groups unveiled a bronze statue of the dog at Latchmere Recreation Ground in Battersea as a memorial. The statue’s plaque carried a provocative line, and it was repeatedly vandalised by medical students. This sparked the Brown Dog riots of 1907, as protests and clashes with police spread through London. On 10 December 1907 hundreds of medical students marched with effigies of the dog, clashed with officers, and the unrest continued into 1908. The statue became a symbol in a broader political struggle over science, medicine, and animal welfare.
Battersea Council eventually removed the statue in March 1910 under police protection, and it was reportedly melted down soon after. The affair helped push forward the Second Royal Commission on Vivisection (1906–1912), which examined how animals were used in experiments and made recommendations for reform. The commission called for stricter rules, more inspectors, better anaesthesia, and euthanasia when pain could not be avoided, along with tighter controls on demonstrations in medical schools.
In 1985 a new public memorial statue, created by Nicola Hicks, was installed in Battersea Park. It sits on a plinth and is based on Hicks’s own terrier. The memorial has continued to generate debate about how to remember the past and the ethics of animal testing. In 2021 a campaign was launched to recast the original statue.
The Brown Dog affair is seen as a landmark moment in the history of animal welfare and the antivivisection movement, highlighting how memory, symbolism, and public protest can shape debates about science and ethics.
This page was last edited on 29 January 2026, at 12:50 (CET).