Definition of "comprehensiveness"

It was this comprehensiveness which made the art so compelling.

1971, Keith Thomas, Religion and the Decline of Magic, Folio Society, published 2012, page 312

The supplementary bibliography (in Vol. VI) attests to the comprehensiveness of the effort.

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 viii