of north. Drive a
stake where the tent is to be located. This place will be called C. Then
place the transit at A and measure the angle formed by the imaginary lines
AC and AB. In the example the angle is about 45 degrees. Then place the
transit at B and measure the angle there, formed by the lines AB and BC.
Then the angle at C should be measured and the sum of the angles thus
measured will be 180 degrees, if the work is correct.

[Illustration: Fig. 2, Fig. 3, Fig. 4]

Now make a drawing of the survey. Draw on paper a line corresponding to
the line AB, making a certain scale, say 100 feet to the inch. If the real
line is 200 feet long, the line on the paper will be 2 inches. With the
protractor the angles at B and A may be drawn or plotted. This will give
the location of the point C. With the scale determine on the plan the
length of the other sides of the triangle ABC. The actual distances should
next be measured with the tape to test the accuracy of the survey.

Next place a stake along the side of the lake at a point D. Then in a
similar manner measure the triangle with the transit. With the protractor
the lines AD and BD can be plotted on the plan. With the scale the length
of the lines AD and BD can be estimated from the map. The rest of the lake
is surveyed in the same manner. It is only necessary to take other points
on the lake and survey the resulting triangles. It is a good idea to use
four-foot stakes with flags placed so as to be easy to sight to them.

Finally a tracing may be made with carbon paper giving only the shore line
and leaving out the lines of the triangles and the map is finished. The
boys in one camp surveyed a lake a mile long with home-made instruments
with excellent results.

Boys should be taught how to use the compass and a map in tracing their
way through an unknown country. Also to travel by the stars or by the moss
on the trees.

CHAPTER V--PERSONAL CHECK LIST OR INVENTORY

CHECK LIST
MARKING
LOST AND FOUND
MEMORY
HOW TO PACK
SHIPPING
LABELS
NEATNESS
GENERAL HINTS

Experience only can determine what should be taken to camp. Usually the
first camping trip decides what to take on the second trip, and also
reveals how few things, providing they are right things, one really needs
to be comfortable in camp. A boy's mother, who is generally the official
trunk packer of the family, makes a mistake in stowing away in the trunk a
lot of things not serviceable or suitable for