through this channel, at the trigger end, and a trigger made of heavy iron
wire, bent to the shape shown in Fig. 51, was hinged to the gun by a bolt
which passed clear through the stock and through both eyes of the trigger.
By using two nuts on the bolt, and tightening one against the other, they
were prevented from working loose and coming off. When we wanted to fire
the gun the bowstring was drawn back, and held by slipping it into the
notch, and a nail was laid in the channel with its head against the
bowstring. Then, on pulling the trigger, the bowstring was lifted out of
the notch, and sent the nail off sailing. The long-grooved barrel insured
a very good aim.

[Illustration: Fig. 50. Binding the Bow.]

[Illustration: Drifting down the Scheiners' Brook.]

[Illustration: Paddling in the Old Scow.]

[Illustration: Fig. 51. The Trigger.]

[Illustration: Fig. 52. The Trigger Set for Firing.]

[Illustration: Fig. 53. The Umbrella Rib Crossbow.]



Megaphone.

[Illustration: Fig. 54. The Megaphone.]

[Illustration: Fig. 55. Layout of the Megaphone.]