11.   It usually continues well after ice begins to thin in spring, and each year hundreds of fishermen are carried off on ice floes.

12.   The groaning ice began to tighten around the hull in April, making it vibrate.

13.   Wareham was able to land his small plane and take off again before the ice began breaking up.

14.   Wareham landed his small plane and took off again Monday before the ice began breaking up.

15.   Weather forecasters say the ice will begin to break up in April, which, according to Randla, would be too late for the dying swans.

16.   As the temperature drops in mid-autumn the ice begins to melt and by winter the area around the spring feels warm.