A Fifteen Problem.
Is there a school in the country in which scholars never play "tic, tac, toe"? If so, will not some one who attends it write the Table? It would be interesting to know if the simple game is not universal. Charles Kingenberg suggests the making of the double crossed lines as in the game named. Then place the figures one to nine, one in a place, and using all places and figures, so that horizontally, perpendicularly, and diagonally in both ways, the sum is fifteen.