I'LATK XII. — For approximately nne-third of the time the ic? iiatrol cutters are bhndfolded by 

 dense fog like this. The fog is usually brought on by long continuing light southerly breezes". 

 Often it is so thin vertically tliat the sun is able to shine down dimly to the water, as here 



'^' -i 



Plate XIII. — There are a number of storms each season. These, as well as the fog, interfere w-ith the 

 scouting and scientific iirograms. This wave was photographed from the stern of an ice patrol cutter 

 while not far from the tail of the flrand Banks 



