NINE OF THE TEN SHIPS WHICH COMPRISED THE AMERICAN SQUADRON OUTWARD 

 BOUND ON A MINE-I,AYING EXCURSION 



WATCH AND WARD FROM THE SKIES 



While laying the North Sea mine barrage, the American warships were in constant danger 

 of attack from the submarines, whose death traps were being set. To give warning of such 

 attacks, dirigibles hovered guard over the fleet. 



97 



