1897  There was an ice-bridge across the river, and below it what we call slush ice--soft sticky stuff--a great deal harder to work a boat through than good hard ice would be.
1922  Grayling are caught in the fall when slush ice is running in the river.
1954  One crack, and further along at the mouth of a river . . . slush ice, might have delayed us for days if the new railway grade . . . hadn't enabled us to crawl along the shore for the necessary detour.
1962  . . . our boats were nearly smashed while going down a sharp bend in the river. Slush ice packed in around us so tight that the sides were bent in, the boards cracked and started to leak.