Note 358 — ACT V., SCENE I.
Reading edition
A cooling card is frequently mentioned in our ancient authors; but the precise sense in which it is used is difficult to be ascertained. In some places it seems to signify admonition or advice; in others, censure or reproof. In Lyly's "Euphues," p. 39, "Euphues, to the intent he might bridle the overlashing affections of Philautus, conveied into his studie a certeine pamphlet, which he tearmed A cooling card for Philautus; yet generally to bee applyed to all lovers."
So in the "First Part of Henry VI.," act v. sc. 4—
"There all is marr'd; there lies a cooling card."
And in the "Wounds of Civil War," 1594—
"I'll have a present cooling card for you."