Be Economical with Your Films
A very important thing to learn when taking photographs is to be
economical with your films, and especially is this so when on the trail,
for your supply is then necessarily limited. Merely for the sake of
using the new toy, many amateurs will photograph subjects that are not
of the slightest interest to any one, and very often, when a scene or
object does present itself that is well worth while, all the films will
have been wasted and no picture can be taken.