1.   The submarine was moving through the water at an astonishing speed.

2.   Both submarines were nuclear powered and carrying nuclear weapons.

3.   But the rescue craft require periodic overhauls, and critics worry about what might happen if a submarine were to sink when the Mystic is not available.

4.   But they have insisted that the submarine first was involved in a collision with some huge object, possibly a submarine or a World War II mine.

5.   But they have said that neither submarine was close to the Russian vessel.

6.   From their descriptions of the warcraft, however, Canadian military analysts suspect the submarine was French or American.

7.   German submarines were everywhere.

8.   German submarines today are the subcompacts of the submarine world, one reason for their popularity with smaller countries.

9.   In a disturbing coda to the Dakar saga, a former navy commander, Adm. Michael Barkai, killed himself hours after hearing that the submarine had been located.

10.   It is due to reach the Kursk Saturday, but it is not clear if the British submarine will be able to make an airtight connection.