WAVE-SCREENS AND FLOATING BREAKWATERS. 235 



you ought to moor the light-vessel head and stern, and not 

 allow her to swing to the tide ? Do you think that possible, in 

 the first place ? " 



Sir James N. Douglass replied, " I look upon it as a simple 

 impossibility to moor any elongated vessel head and stern in a 

 tideway at sea." 



