331. (1) Coördinate conjunction: (a) Adversative.

His very attack was never the inspiration of courage, but the result of calculation.—Emerson.

(b) Copulative, after not only.

Then arose not only tears, but piercing cries, on all sides. —Carlyle.

(2) Subordinate conjunction: (a) Result, equivalent to that ... not.

Nor is Nature so hard but she gives me this joy several times.—Emerson.

(b) Substantive, meaning otherwise ... than.

Who knows but, like the dog, it will at length be no longer traceable to its wild original—Thoreau.

(3) Preposition, meaning except.

Now there was nothing to be seen but fires in every direction.—Lamb.