R
Richard A. Proctor
19 works on record
Works
Wages and wants of science workers
Half-hours with the telescope
Half-hours with the telescope
The Great Pyramid
The Great Pyramid
A star atlas
A star atlas
Studies of Venus-transits
Studies of Venus-transits
Wages and Wants of Science Work
Wages and Wants of Science Work
Other Worlds Than Ours
Other Worlds Than Ours
Myths and Marvels of Astronomy
Myths and Marvels of Astronomy
Flowers of the Sky
Flowers of the Sky
Chance and Luck
Chance and Luck
The sun
The sun
Myths and Marvels of Astronomy (Classic Reprint)
Myths and Marvels of Astronomy (Classic Reprint)
Pleasant Ways in Science
Pleasant Ways in Science
Light Science for Leisure Hours
Light Science for Leisure Hours
Old and new astronomy
Old and new astronomy
Easy Lesson in the Differential Calculus
Easy Lesson in the Differential Calculus
The Great Pyramid Observatory, Tomb, and Temple (Classic Reprint)
The Great Pyramid Observatory, Tomb, and Temple (Classic Reprint)
Orbs Around Us
Orbs Around Us
Easy Star Lessons
Easy Star Lessons