An arm attached to an operating rod, connected with an arm of an operating shaft, and

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…

., I am a distinct family of plants, closely allied to Rubbers, from which, however, I must be separated, on account of my want of agreement with them in every particular, except…