progress of the carriage being thereby regulated from 1 to 10 or 20
miles per hour.

7. The Tank for Water, running from end to end, and the full breadth of
the carriage; it will contain 60 gallons of water.

8. The Carriage, capable of holding six inside-passengers.

9. Outside Passengers, of which the present carriage will carry 15.

10. The Hind Boot, containing the Boiler and Furnace. The Boiler is
incased with sheet-iron, and between the pipes the coke and charcoal are
put, the front being closed in the ordinary way with an iron door. The
pipes extend from the cylindrical reservoir of water at the bottom to
the cylindrical chamber for steam at the top, forming a succession of
lines something like a horse-shoe, turned edgeways. The steam enters the
"separators" through large pipes, which are observable on the Plan, and
is thence conducted to its proper destination.

11. "Separators," in which the steam is separated from the water, the
water descending and returning to the boiler, while the steam ascends,
and is forced into the steam-pipes or main arteries of the machine.

12. The Pump, by which the water is pumped from the tank, by means of
a flexible hose, to the reservoir, communicating with the boiler.

13. The Main Steam Pipe, descending from the "separators," and
proceeding in a direct line under the body of the coach to the "throttle
valve" (No. 6,) and thence, under the tank, to the cylinders from which
the pistons work.