Uranography—CHARLES A. YOUNG; Ginn and Co., 1897.

Astronomy—CLERK AND OTHERS; D. Appleton and Co., New York, 1898.

New Astronomy—SAMUEL PIERPONT LANGLEY; Boston, 1900.

Popular Astronomy—NICOLAS CAMILLE FLAMMARION; trans. from the French
by J. Ellard Gore, London, Chatto and Windus, 1907.

Astronomy for Amateurs—NICOLAS CAMILLE FLAMMARION; trans. from the
French by Frances A. Welby; D. Appleton and Co., New York, 1904.

Astronomy for All—BRUNO H. BÜRGEL; trans. from the German by
Stella Bloch; Cassell and Co., New York, 1911.

Pith of Astronomy—SAMUEL G. BAYNE; New York, 1896.

The Dawn of Astronomy—J. NORMAN LOCKYER; Macmillan Co., New York,
1897.

The New Heavens—GEORGE ELLERY HALE; Charles Scribner's Sons, New York,
1922.

Astronomy without a Telescope—EDWARD WALTER MAUNDER; Knowledge
Office, London, 1903.