Here is a volume quite different from the usual "popular book on astronomy."

It answers in untechnical language the every-day questions of every-day people, the material being so arranged that it is readily available for quick reference use, as well as for interesting consecutive reading.

An individual chapter is devoted to each member of the Solar System. Special space is given to "Curiosities of the Skies."

The illustrations are from photographs taken at the great observatories. The drawings of Mars are the most recent published, being made by Professor Lowell in January, 1914.

The chronological table and annotated bibliography are of real value.