< Page:Popular Science Monthly Volume 92.djvu
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i^eading Flag Signals from the Sky
���A more advanced class. The "loaej ol a ship's r geinp tk^
students reply'^to if b;';,o,Tng their miniature squadrons Thif
'ng >n quick tactical judgment
��Students must identify from a distance the models of friSly
��ami hostile ships which are
rlem h- '. *'^'" P^'"^^^ *« ^eP? resent distance at sea. The
raised to represent a seemine- iy vert.c.l background of ski
�� �
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