Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 717
copper of thisbattery you will see spread out on the bottom ofthe jar. The small, pebble-like substance aroundit is blue-stone —sulphate of copper. The solutionpoured in is merely clean water. Sometimes sul-phate of zinc is added to hasten the action. Theliquid soon dissolves the blue-stone, which…
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 717](https://img.insideoutlibrary.com/img/1024/ia-stnicholasserial371dodg-717-781.webp)
