This illustration depicts the visible solar spectrum compared to the visible spectrums of sodium, barium, strontium and hydrogen. Explanatory text states that the illustration is purely an example as the actual solar spectrum contains significantly more lines.
This plate is found within The Romance of Modern Chemistry, which is a layman's introduction to topics in chemistry. Includes a history of chemistry along with alchemy and the philosopher's stone; elements including organic, invisible, metals, acids, alkalies, and water; chemical changes such as fire, freezing and explosions; chemistry of the stars; food; electricity; solutions and crystals; as well as discoveries in chemistry.
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