Royal Commission on Animal Magnetism

18th-century French investigation into animal magnetism

The Royal Commission on Animal Magnetism was an investigative body established in 1784 by King Louis XVI to examine the claims of animal magnetism made by Franz Mesmer. The commission was composed of prominent members of the scientific community and aimed to determine the validity of Mesmer's theories and practices.

Background

Portrait of Louis XVI

Animal magnetism, also known as mesmerism, was a theory developed by Franz Mesmer in the late 18th century. Mesmer proposed that a natural energy transference occurred between all animated and inanimate objects, which he termed "animal magnetism." He claimed that this force could be manipulated to heal various ailments.

The popularity of Mesmer's practices in Paris led to widespread public interest and concern, prompting King Louis XVI to commission an investigation into the legitimacy of these claims.

Composition of the Commission

The commission was composed of distinguished members of the French Academy of Sciences and the Royal Society of Medicine. Notable members included:

• Antoine Lavoisier, a leading chemist known for his work on the law of conservation of mass.
• Jean Sylvain Bailly, an astronomer and mathematician.
• Benjamin Franklin, the American diplomat and scientist.
• Joseph-Ignace Guillotin, a physician who later became associated with the guillotine.

Investigation

Marie Antoinette, Queen of France

The commission conducted a series of experiments to test the effects of animal magnetism. They observed Mesmer's sessions and conducted blind tests to determine whether the effects reported by patients were due to magnetism or suggestion.

The experiments included blindfolding subjects and having them interact with objects that were supposedly magnetized. The commission found that the subjects' reactions were inconsistent and often influenced by their expectations rather than any magnetic force.

Findings

The commission concluded that there was no evidence to support the existence of animal magnetism as a physical force. They attributed the effects observed in Mesmer's patients to imagination, suggestion, and psychological factors rather than any magnetic influence.

The findings were published in a report that discredited Mesmer's theories and practices. This report had a significant impact on the public perception of mesmerism and contributed to its decline in popularity.

Impact

Jean-Etienne Liotard, a contemporary artist

The Royal Commission's report was a landmark in the history of scientific skepticism and the evaluation of pseudoscientific claims. It set a precedent for the use of controlled experiments and empirical evidence in the investigation of extraordinary claims.

Despite the commission's findings, mesmerism continued to have a following and influenced the development of hypnosis and psychotherapy in the 19th century.

Related pages

• Franz Mesmer
• Animal magnetism
• Hypnosis
• Pseudoscience

Princess de Lamballe, a contemporary figure

Legacy

The Royal Commission on Animal Magnetism is remembered as an early example of scientific inquiry into claims of the paranormal and the importance of skepticism in the face of extraordinary claims. It highlighted the need for rigorous testing and the dangers of accepting claims without empirical evidence.

Maurepas, a political figure of the time

Conclusion

The commission's work remains a significant chapter in the history of science, illustrating the challenges of distinguishing between genuine scientific phenomena and pseudoscience. It serves as a reminder of the importance of critical thinking and the scientific method in evaluating claims that lack empirical support.