The plate was of tin, gilded, the border and the letters of the inscription being black.
A parlor bell-rope was carried over a brass pulley, and then passed downward in a groove made in the mahogany board to which the card was attached.
A little reflection will, however, show the teacher that the form and construction of the apparatus for marking the times of study and of rest may be greatly varied.

The chief point is simply to secure the _principle_ of whispering at definite and limited times, and at those alone.

If such an arrangement is adopted, and carried faithfully into effect, it will be found to relieve the teacher of more than half of the confusion and perplexity which would otherwise be his hourly lot.

I have detailed thus particularly the method to be pursued in carrying this principle into effect, because I am convinced of its importance, and the incalculable assistance which such an arrangement will afford to the teacher in all his plans.

Of course, I would not be understood to recommend its adoption in those cases where teachers, from their own experience, have devised and adopted _other_ plans which accomplish as effectually the same purpose.