Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 470
to say that thetime taken by the shell in traveling through thegun, from powder chamber to muzzle, multipliedby the total number of rounds that can be firedbefore the rifling is so worn as to impair theaccuracy, gives a total useful life of only threeseconds. Rather a short life for, let us say,… … EASY ELECTRICAL LESSONS What is electricity?No one knows. Many scientists have told us what they thought electricity was. Butno one really knows.We do know, how-ever, a great manythings about elec-tricity. We knowhow to use it andhow to manufactureit. We light ourhomes and run ourshops with it.…
Children's literature
Internet Archive · UNC Libraries · Public Domain Mark 1.0. Free to use for anything.
![An illustration from St. Nicholas [serial], 1873, leaf 470](https://img.insideoutlibrary.com/img/1024/ia-stnicholasserial4411dodg-470-682.webp)
