Page:Popular Science Monthly Volume 92.djvu/190

 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

�� �