Note 1 — Chapter VII
Reading edition
Reproduced in the Frontispiece with Mr. Roberts's kind permission. The star-halo at the top of the plate is caused by diffraction of light in the telescope, and comes only from an ordinary star.
Reading edition
Reproduced in the Frontispiece with Mr. Roberts's kind permission. The star-halo at the top of the plate is caused by diffraction of light in the telescope, and comes only from an ordinary star.