FIG. 2.
At b. ([fig. 3].), where your two tracks come together, you must put pegs (b. b.) to keep the switch from moving too far either way, and throwing your train off. Also, from this point, the ties must be long enough to hold the side track till it is clear of the regular track ([fig. 3]). The curve of this side track is made, of course, by the directions for making a curve. The last special tie at c (fig. 3) must run out far enough to take a hold of, to move the switch.
TO MAKE A FROG.
At the point where the rails cross (d, [fig. 3].) you will need a frog, to allow your train to go smoothly over. To make this, you cut your side rails square off at d, and begin it again on the inside of the rail, leaving a space of a quarter of an inch open to let the flange of your car wheels pass through.
Also, you must cut a notch in your regular track at the same point, so that the wheels on trains switching off may go through ([fig. 4]).
Now your track is ready, you may begin on the train; and first the trucks.
