Definition of "collected"

In an instant Francesca would become perfectly collected—every past event would stand out singularly clear, and she would turn, take one look at Guido, and then breathe again.

1834, L[etitia] E[lizabeth] L[andon], chapter XXVII, in Francesca Carrara. […], volume II, London: Richard Bentley, […], (successor to Henry Colburn), page 285

There is no man here so young—and we have some very young members—but he must have observed, must have known from the impulses of his own mind and his own feelings, that, when in a state of high excitement, a man's judgment is not so accurate, not so effectual, not to be relied upon to such an extent, as when he is cool, calm and collected. That is an axiom in morals, in the history of human life, about which I suppose there will be no question. Are we now in that condition?

1864 June 16, Ezekiel F. Chambers, edited by W. M. Blair Lord and Henry M. Parkhurst, The Debates of the Constitutional Convention of the State of Maryland

He became very cool and collected all at once.

1899 February, Joseph Conrad, “The Heart of Darkness”, in Blackwood’s Edinburgh Magazine, volume CLXV, number M, New York, N.Y.: The Leonard Scott Publishing Company, […], part I, page 201

Firstly, I continue to base most species treatments on personally collected material, rather than on herbarium plants.

1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, New York, N.Y.: Columbia University Press, page vii