HALO, n. Properly, a luminous ring encircling an astronomical body, but not infrequently confounded with "aureola," or "nimbus," a somewhat similar phenomenon worn as a head-dress by divinities and saints. The halo is a purely optical illusion, produced by moisture in the air, in the manner of a rainbow; but the aureola is conferred as a sign of superior sanctity, in the same way as a bishop's mitre, or the Pope's tiara. In the painting of the Nativity, by Szedgkin, a pious artist of Pesth, not only do the Virgin and the Child wear the nimbus, but an ass nibbling hay from the sacred manger is similarly decorated and, to his lasting honor be it said, appears to bear his unaccustomed dignity with a truly saintly grace. HAND, n. A singular instrument worn at the end of the human arm and commonly thrust into somebody's pocket. HANDKERCHIEF, n. A small square of silk or linen, used in various ignoble offices about the face and especially serviceable at funerals to conceal the lack of tears. The handkerchief is of recent invention; our ancestors knew nothing of it and intrusted its duties to the sleeve. Shakespeare's introducing it into the play of "Othello" is an anachronism: Desdemona dried her nose with her skirt, as Dr. Mary Walker and other reformers have done with their coattails in our own day--an evidence that revolutions sometimes go backward. HANGMAN, n. An officer of the law charged with duties of the highest dignity and utmost gravity, and held in hereditary disesteem by a populace having a criminal ancestry. In some of the American States his functions are now performed by an electrician, as in New Jersey, where executions by electricity have recently been ordered--the first instance known to this lexicographer of anybody questioning the expediency of hanging Jerseymen. HAPPINESS, n. An agreeable sensation arising from contemplating the misery of another. HARANGUE, n. A speech by an opponent, who is known as an harangue-outang. HARBOR, n. A place where ships taking shelter from storms are exposed to the fury of the customs. HARMONISTS, n. A sect of Protestants, now extinct, who came from Europe in the beginning of the last century and were distinguished for the bitterness of their internal controversies and dissensions. HASH, x. There is no definition for this word--nobody knows what hash is. HATCHET, n. A young axe, known among Indians as a Thomashawk. "O bury the hatchet, irascible Red, For peace is a blessing," the White Man said. The Savage concurred, and that weapon interred, With imposing rites, in the White Man's head. John Lukkus HATRED, n. A sentiment appropriate to the occasion of another's superiority. HEAD-MONEY, n. A capitation tax, or poll-tax.