All 3 Uses of

compose
in
Dr. Jekyll and Mr. Hyde

So far the letter had run composedly enough, but here with a sudden splutter of the pen, the writer's emotion had broken loose.
p. 57.4 *

composedly = calmly (under control)

"Compose yourself," said I. He turned a dreadful smile to me, and as if with the decision of despair, plucked away the sheet.†
p. 78.5

Yet the creature was astute; mastered his fury with a great effort of the will; composed his two important letters, one to Lanyon and one to Poole; and that he might receive actual evidence of their being posted, sent them out with directions that they should be registered.†
p. 103.2 *

Definitions:

(1) (compose as in: compose a poem)
to write or create something with care
(2) (compose as in: composed of many parts)
to create something by arranging parts
(3) (compose as in: compose myself)
to calm someone or settle something
(4) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

Specialized senses of compose include typesetting (preparing text for printing). There are many specialized senses of composition where context tells what something is made up from. Finally, in classic literature, compose may have been used to indicate settling a dispute.