The evolution of worlds
A 1909 astronomy book by Percival Lowell, published in New York by the Macmillan Company, presenting his theories of planetary origins to a general and scientific readership. Its pictures are rotated pages of telescopic observations: faint, smudgy markings on grid-ruled charts and circular eyepiece views of banded planetary surfaces with pale and dark streaks, which suggest how scientific diagrams can use fine hand-drawn texture, measurement grids and circular framing.
