The book explores the United States of America through the eyes of author. San Francisco resembles New York in the paucity of cabs. Here again nearly every one travels in the street cars. Horses are used in a few of them, but with most the motive power is steam at one end of the route, which works an endless rope. This wire rope runs on rollers under ground between the rails, and there is an orifice from end to end in the roadway above the said rope. Through this said orifice or narrow slit, a pair of pinchers, connected with the car, descends and nips the rope, which runs continually. The said pinchers are made to grip and loose the rope as required.