Entitled "A Simple Chemical Change," photographic reproduction depicts a lump of quicklime in the top photograph with the middle photograph exhibiting steam emitting from the lump as a result of the addition of water. The last photograph shows how the lump turns into soft material due to the addition of water.

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.