Abstract

Toward the end of the 18th century, the Scottish geologist James Hall carried out a series of experiments. They were designed to explore the genesis of rock formations in connection with the controversy between “neptunism” and “volcanism”. These experiments are documented in a museum collection that is located today in the British Geological Survey headquarters in Keyworth near Nottingham. The collection consists of ca. 250–300 individual items and includes samples of Hall's experiments and experimental equipment, as well as several of the original rock specimens that had belonged to him. This article provides a short description of that collection