Note 28 — DIARY OF JOHN EVELYN. (continued 4)
Reading edition
And in the cup an UNION shall he throw, Richer than that which four successive kings In Denmark's crown have worn. —Shakespeare, "Hamlet," Act v. Sc. 2.
Theobald says, an UNION is the finest sort of pearl, and has its place in all crowns and coronets. The Latin word for a single large pearl, it is hardly necessary to add, is unio.