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SURVIVAL ON LAND AND SEA 
To prevent snowblindness dark glasses should be worn at all 
times. They should have shields to prevent glare from entering 
at the sides. The rims should not be of metal as they might 
stick to the skin. If dark glasses are not available, improvised 
goggles can be made from pieces of canvas or other heavy cloth, 
cardboard, or even pieces of wood, with narrow slits for the eyes. 
Blackening the cheeks and nose with soot is helpful. 
For warmth, clothing should be kept as dry as possible. 
Before going inside the tent or shelter, brush the snow from your 
clothes. It is extremely important to avoid overheating for 
