Abstract

The period between 1780 and 1840 has long been regarded as a crucial one in the development of geology. In 1780, relatively little was known about the structures and processes of the earth in spite of the efforts of individual mining engineers and bureaucrats, mineralogists, fossil collectors and cosmogonists. By 1840, the sequence of the European rocks was well on the way to being sorted out. This laid the groundwork for the reconstruction of the history of the earth and also of life on the earth. Sophisticated theories of geological causes, consistent with contemporary physics, were in hand. The appropriate methodologies for both historical and causal investigation had been much debated, and a coherent and self-conscious body of men devoted themselves almost exclusively to geology.