438 … so present its concave surface to the viewfor AST week we referred at some length to object to be photographed. This division of the the discovery of Rontgen. Nothing else lens provides the photographer with a single is being talked about in photographic lens of about double the focal length of the…
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.
