Fig. 202. Headboards. The corded edge on the cover piece lapped over the sides, forming a watershed.

Fig. 203. The Mummy Case.

It was Bill’s idea to rig up the flap in such a manner that it would not lie against the face, so that the sleeper could have plenty of fresh air, even in rainy weather. This required the use of two headboards, of the form shown in Fig. 202. The headboards were connected at the bottom by a thin board, and to this framework the sides of the bag were nailed. To the end

Fig. 204. Sleeping Bag in Use. flap several cleats were nailed, adapted to fit into notches cut in the headboards. The cleat at the end of the flap was laid on edge, as shown, and fitted into deep notches in the headboards just above the edge of the cover piece. This held the flap securely, preventing it from flying open in a heavy wind. At the same time the small space between the flap and the cover piece allowed for an ample supply of fresh air. When using this sleeping bag, if there was any indication of a shower, we took care to have the head pointed to windward so as to prevent entrance of rain through this air space.

The “A” Tent.