A book on Pastels referes [sic] to a rough Modeling paste to be spatulaed over cotton duck.

[T]he dire portent of Nihilism, which some persons regard as little more than an extreme protest against absolutism in Government, … is an execrable conspiracy against all religion and morality.

an ultimate constituent of matter

As Jean Lurcat said, The art had died, killed by consumption, insipidness, lymphatism, and inversion.