Rough Ways Made Smooth: A series of familiar essays on scientific subjects

The collection presents accessible essays that explain astronomical and physical phenomena and apply scientific reasoning to everyday topics. Early chapters examine solar and lunar observations, discussing corona structure, sunspots, eclipses, planets near the Sun, meteors, and ideas about the Moon's past and craters. Other pieces consider human and biological subjects such as somnambulism, hereditary traits, illness as a mental stimulant, and dual consciousness, and include practical discussions of rowing styles and electric lighting. Prose emphasizes clear, untechnical explanation, linking observational evidence, periodic patterns, and speculative interpretation to make scientific ideas intelligible to general readers.