76 … Ox, E have dealt with the manu- actual increase or reduction of pressure for GF, facture of oxygen and its every measurable degree of temperature, The storage in bulk in what are following represents the pressure at a few different temperatures :— known as gas bags. These have to a very great…
Bazaar decoration · Stamp collecting week by week · Fretworking in wood · The magic lantern and how to prepare the light · Venetian ribbon or bent iron work · Cycling and athletics · Electrical science - the induction coil · How to make a folding bookshelf · Photographic notes and hints · Hobbies that pay · Weekly presentation design · Prize competitions · Correspondence
Internet Archive · Public domain (published before 1931). Free to use for anything.
