As was announced at the mass meeting last evening, some enterprising vendor has estimated our enthusiasm over the Princeton game in terms of dollars and cents and has introduced into our midst a devilish device for producing a diabolical din. When used in sufficient number these instruments of noise, known as "clappers", are capable of producing enough sound to drown out the best organized cheering or the most effective singing. They are the type of noise-producer that a great crowd going to a professional baseball game desires to employ to "rattle" the opposing pitcher and to give the favorite team an unfair advantage. In other words, "clappers" are the instruments of a partition crowd which is unwilling to give the opposing team a fair chances to do its best. So before any student purchases one of these mechanical noise-producers, he should consider carefully what would be the combined effect of, say, ten thousand such instruments at the game tomorrow. The occasion would degenerate into a confused bedlam of noises, and organized cheering and singing would be impossible. But worst of all, Harvard men would be open to the charge of resorting to clasp, unfair and professional lactics in order to disconcert an opponent.