This captivating volume is designed for young readers who have enjoyed The Fairyland of Science. It explores a fascinating range of subjects, revealing extraordinary facts that can be studied with the aid of optical instruments. Each lecture offers just a glimpse, igniting a desire for deeper understanding. In an age where affordable instruments and insightful literature are readily available, I hope to inspire curious minds to delve into the scientific realms unveiled by these magic glasses. Even for those who may not pursue further study, this book will illuminate the unseen wonders of the world around us. The final two lectures take a delightful detour, providing a fitting conclusion to the Magicians discussions with his young Devonshire audience.