Two papers of very large sized safety-pins of horse-blanket kind
One roll of tape, most useful in many ways.
One whistle, the loudest and shrillest to be found, worn on cord around the neck, for calling help when lost or in case of need. A short, simple system of signalling calls should be adopted.
One compass, durable and absolutely true.
One watch, inexpensive but trustworthy. Do not take your gold watch.
One package of common post-cards, with lead pencil attached. The postals to take the place of letters.
One package writing-paper and stamped envelopes, if post-cards do not meet the needs.
One pocket-knife, a big, strong one, with substantial, sharp, strong blades, for outdoor work and to use at meals.
One loaded camera, in case which has secure leather loops through which your belt can be slipped to carry camera and hold it steady, leaving the hands free and precluding danger of smashing the instrument should a misstep on mossy stone or a trip over unseen vine or root suddenly throw you down and send the camera sailing on a distance ahead. Such an accident befell a girl camper who was too sure that her precious camera would be safest if carried in her hand. Wear the camera well back that you may not fall on it should you stumble, or the camera can be carried on strap slung from the right shoulder.
Three or more rolls of extra films, the quantity depending upon your length of stay at camp and the possibilities for interesting subjects.