Peeping cautiously through the doorway he saw Miss Mercy alone in the bar, perfunctorily at work upon a task of supererogation which the paternal wisdom had set her.
"A Poached Peerage"
William Magnay
Having performed this office with an air of detachment designed to make Woburn recognize it as an act of supererogation, he turned without a word and vanished down the passage- way.
"The Greater Inclination"
Edith Wharton
The Sunday previous to leaving the place, the men were engaged on a work of supererogation until 8-30 p.
"The Story of the "9th King's" in France"
Enos Herbert Glynne Roberts