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Usage examples:

• Substitutes for glass and mercury.

  - "The Wonder Island Boys: Exploring the Island", Roger Thompson Finlay.

• The boar's head they might not have, but there were splendid substitutes for it if they had cared to make their Christmas feast of products of the new land to which they had come.

  - "Old Plymouth Trails", Winthrop Packard.

• For competition, Christianity substitutes emulation.

  - "The Complete PG Edition of The Works of Winston Churchill", Winston Churchill.