the engine is gradually diminished, and the cars finally regain their former position. This piece of apparatus is also known as an aerostat.
You will find the miniature flying airships (Fig. 138) easy to construct after making a merry-go-round or Ferris wheel, as many of its details are identical with those of the other toys.
The Standard for the toy is made similar to the one for the merry-go-round (Fig. 135), except that the top board is omitted and a circular piece of cardboard of the size of the disks removed in cutting out the rims of the Ferris wheel is substituted in its place. Cut a hole through the exact center of the piece large enough so it will fit over spool D (Fig. 136).
Cut a Mast about 14 inches long and of the diameter of the hole in the spool and stick it into spool D; then 3 inches below the top of the mast fasten a spool with four horizontal arms 6 inches long glued into holes bored in it. Fasten a cross-piece 4½ inches long to the end of each arm with brads, and from these suspend
Cars made similar to those of the Ferris wheel, with cords. Set a small flag in a hole bored in the top of the mast and then run cords from the top of the mast out to the ends of the arm pieces.
With this toy the cars cannot be swung out obliquely as on the large flying airships except by
Increasing the Speed of the Clockwork. This can be accomplished by removing one or two of the wheels of
