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The main object in placing obstacles in front of a de...

Preparing Your Bed
After you have pitched your tent, get some hay, grass...

A Model Order For An Advance
Field Orders Hq. 1st Brigade...

The Theory Of The Defensive
The defensive is divided into the purely passive defe...

The Actual Attack
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Rear Guard Of An Advancing Force
If there is a possibility that the rear of the column...

Advance Guards
An advance guard is a detachment of the main body whi...

Old North Wind
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Different Kinds Of Attack
The most usual kinds of attack are: Frontal Attack...

Stack And Take Arms
The subject of stack and take arms is less important ...

Appearance Of Objects

Become familiar with the effect which the varying conditions of light,
background, etc., have upon the apparent distance of the object. Don't
be content to memorize the following data, but go after the underlying
reason in each case.

Objects seem nearer than they actually are:

1. When the object is seen in a bright light.

2. When the color of the object contrasts sharply with the color of the

3. When looking over water, snow, or a uniform surface like a wheat

4. When looking from a height downward.

5. In clear atmosphere of high altitudes, as in Arizona and New Mexico.

Objects seem more distant than they actually are:

1. When looking over a depression in the ground (across a canyon).

2. When there is a poor light (very cloudy day) or a fog.

3. When only a part of the object can be seen.

4. When looking from low ground upward toward higher ground.

Next: Estimating Distances By Sound

Previous: Methods Of Estimating Distances By The Eye

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