1731. Hales, Stat. Ess., I. 122. As any liquor in a thermometer rises and falls with the alternacies of heat and cold.
1782. Gilpin, Observ. Wye (1789), 22. A kind of alternacy takes place: what is, this year, a thicket; may, the next, be an open grove.
1795. H. Walpole, Corr. (1837), III. 467. The softening alternacy of vowels and consonants.
