It is customary for excursion steamers to "make" this island in their course to the North Cape, and to stand off and on for an hour to give passengers an opportunity to observe the birds and their interesting habits.
"Due North or Glimpses of Scandinavia and Russia"
Maturin M. Ballou
"Use and wont," "old sisters of a day gone by," still demand what has been customary.
"A Key to Lord Tennyson's 'In Memoriam'"
Alfred Gatty
It is customary, also, to leave corrections with instruments.
"My Attainment of the Pole"
Frederick A. Cook