Introductory material

Fissures on Mercury. Lowell’s drawing. Centres of collapse. Absence of atmosphere. The climate on the Moon. W. Pickering’s belief in frost formations on the Moon. The mountains on the Moon. Volcanoes. Circular elevated rings. “Seas” on the Moon. The Crater “Linné.” “Sinuses” and “Streaks” on the Moon. The light matter of the streaks probably lava-scum. The colour of the Moon and of the Earth. Comparison between the Moon and Mars. Changes on the Moon. “Snow” and “Vegetation” on the Moon according to W. Pickering. The fate of Mars and of the Earth. Falling meteoric dust. The climate on Venus. Swamps like those of the carboniferous age. Abundant vegetation. Low organisms. “Culture” on Venus will proceed from the poles. The future of Venus. The claims of astrology in modern light. Tycho Brahe. The dreams of Giordano Bruno probably true.