I am a species of white metal, which is connected with a great many important emetics

I am a servant of the public, and my name is Emetic. I produce a puking, which is an operation of great use to the community, in certain circumstances.…

I am the handle of the cross-bar of a bell-crank, on the upper end of which is fixed a small piece of metal that projects through the pavement of a street, and on the lower end of…