Einer Nielsen's séances tested in Kristiania

In 1922, a committee in Kristiania (Oslo) tested the Danish materialisation medium Einer Nielsen and concluded that his 'ectoplasm' was fraudulent.

1922 CE · 59.91, 10.74 · status: disputed

The sceptical view

Supporters disputed the conditions, but the episode badly damaged his reputation.

Sources

1. Wikipedia: Einer Nielsen