Ueber die schrecklichen Wirkungen des Aufsturzes eines Kometen auf die Erde / und über die vor fünftausend Jahren gehabte Erscheinung dieser Art

The author examines how large celestial bodies arise from fluid masses under laws of attraction and repulsion, arguing that planets develop layered interiors as heavier materials settle toward a central core. He then applies this geology to assess the consequences of a collision with a substantial comet, describing catastrophic disruption of internal structure, massive surface devastation, and the destruction of organic life, and links such impacts to volcanic upheaval and seismic activity. The discussion draws on physics, mineralogy, and geodetic and volcanic observations to argue for the plausibility and geologic consequences of ancient cometary encounters.