Oh, Colonel, help me to guard against so dreadful a calamity.
Decidedly, Dick had been a godsend, and his absence would be a calamity.
Three things have happened, either one of which would alone have been a calamity.
Doubtless posterity has acquired a better city by the calamity of that generation.
What horrible thing, what calamity that frightened my soul to think of, had ...