We were now ready to mount the frame on the bicycle wheels. We used only the front wheels of the bicycles with the forks in which they were journaled. The shanks at the top of the forks were firmly driven into holes in the crosspiece near the ends. For the steering wheel Bill took the front fork and wheel of his new bicycle, letting the shank into a hole at the stern end of the backbone.

Fig. 219. Bracing the Mast.