Fig. 209
Now fasten together the bows, B, and the sterns, C, of the sides, A A (Fig. 208), with seccotine, taking care that no gum comes below the line a b. Gum the triangle a´ f e (Fig. 209) to the sides, A A, as in Fig. 208. Point a must come at the very end of the sides A, and the surface of a f e forms the deck. Gum triangle g h b´ to the sides, A, in the same way (Fig. 208). Now gum the other two triangles to the bottom of the gondola. Their apexes will probably come at about K and M in Fig. 208. The positions of these points can be determined by finding out at what spot the triangle brings the sides A A closely together; try to keep them as far from ends a and b as possible.
SWINGING BOATS AND GREAT WHEEL
(Chapter XIV)
Plate VI FLYING GONDOLAS, ETC.
The space left between the two bottom triangles has a piece of paper gummed over it.