dropped into the hole in the cover, and the cover THE PUSH. placed on temporarily. If the button “is PUSH is a kind of switch ; touched, it will be seen or rather felt to press the it is used to complete the top spring against the bottom one and make contact. This, however, will be better under-…
Amateur wood carving · Pigeons for pleasure and profit · The magic lantern and chemical experiments · Stamps and stamp collecting · Junior fretwork competition · Photographic news and hints · Cycling · Weekly presentation design · Playgrounds of electrical science – how to make an electric bell set · Notes on athletics and sport · Prize competitions · Correspondence
Internet Archive · Public domain (published before 1931). Free to use for anything.
![An illustration from The Telegrapher [microform] (1864)](https://img.insideoutlibrary.com/img/200/ia-telegrapher04nati-24-10.webp)