Stellar Evolution and Its Relations to Geological Time

The Source and Mode of Solar Energy Throughout the Universe

The Destinies of the Stars

Riesen und Drachen der Vorzeit. Geschichte der Erde, Dritter Teil

Climate and Time in Their Geological Relations A Theory of Secular Changes of the Earth's Climate

The Evolution of Worlds

Modern cosmogonies

A világegyetem élete és megismerésének története a legrégibb időtől napjainkig

Worlds in the making: The evolution of the universe

The universe around us