minutes, as a reaction is apt to set in, and you will feel fatigued upon
rising.

Experience has shown that a man travelling with a light load, or none,
will walk about three miles an hour; but you must not expect from this
that you can easily walk twelve miles in four heats of three miles each
with ten minutes rest between, doing it all in four and a half hours.
Although it is by no means difficult, my advice is for you not to expect
to walk at that rate, even through a country that you do not care to
see. You may get so used to walking after a while that these long and
rapid walks will not weary you; but in general you require more time,
and should take it.

Do not be afraid to drink good water as often as you feel thirsty; but
avoid large draughts of _cold_ water when you are heated or are
perspiring, and never drink enough to make yourself logy. You are apt to
break these rules on the first day in the open air, and after eating
highly salted food. You can often satisfy your thirst with simply
rinsing the mouth. You may have read quite different advice[8] from
this, which applies to those who travel far from home, and whose daily
changes bring them to water materially different from that of the day
before.

It is well to have a lemon in the haversack or pocket: a drop or two of
lemon-juice is a great help at times; but there is really nothing which
will quench the thirst that comes the first few days of living in the
open air. Until you become accustomed to the change, and the fever has
gone down, you should try to avoid drinking in a way that may prove
injurious. Base-ball players stir a little oatmeal in the water they
drink while playing, and it is said they receive a healthy stimulus