This is an OCR edition without illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from GeneralBooksClub.com. You can also preview excerpts from the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Original Published by: C. Scribner's sons in 1904 in 176 pages; Subjects: Electricity; Matter; Radioactivity; Juvenile Nonfiction / Technology / Electricity & Electronics; Juvenile Nonfiction / Science & Nature / Physics; Science / Electricity; Science / Electromagnetism; Science / Nuclear Physics; Science / Physics; Science / Radiation;