powerfulness

The powerfulness of the telescope depends on the size of the light-gatherer.

The novel stirred me—not by its powerfulness, for it did not set out to be powerful—but by its individuality and distinction.

Humboldt remarks that a few drops of vegetable juice recall to our minds all the powerfulness and the fecundity of nature.

A few drops of vegetable juice recall to our minds all the powerfulness and the fecundity of nature.

I know nothing like it either in strength of colouring or powerfulness of effect.