To remedy the congested traffic of the Brooklyn Bridge, it was recently proposed to construct a movable sidewalk extending along its whole length. This will resemble very much the moving boardwalk at the Chicago World’s Fair, and, like it, will be provided with seats. To protect the passengers, the entire length will be covered by a glass shelter. The sidewalk itself will move at a rate of ten miles an hour. * * * * * Such a contrivance, if successful, will prove a great boon to those who pass daily between New York and Brooklyn. It might be well, however, not to experiment with such an important thoroughfare as the Brooklyn Bridge, at least until the new East River structure is completed. IN-DOORS PARLOR MAGIC By Ellis Stanyon The first of this series of papers on Magic, commencing with the March number, included directions to the beginner for Palming and the Pass. THE PENETRATING COIN.--This coin trick may be performed anywhere, and requires no special preparation. A borrowed Derby hat is placed upon the mouth of a tumbler (Fig. 8). Three half-dollars are now borrowed and tossed into the hat, whereupon one of the coins is seen to penetrate the crown of the hat, and drop visibly and audibly into the tumbler beneath. It is thus explained: In the act of placing the hat on the glass, secretly and without jingling slip a coin of your own between the rim of the glass and the hat. The weight of the latter will retain the coin in its position, which, of course, is on the side of the hat farthest from the spectators. The dropping of the borrowed coins in the hat will disturb the balance of the secret half-dollar, causing it to fall into the tumbler. It is hardly necessary to remind the student that the fourth coin must be gotten rid of unbeknown to the audience, otherwise the effect is destroyed. In putting the hat in position two hands may be used. This will greatly facilitate the placing of the coin on the rim of the tumbler. You should lay stress on the fact that it is necessary to get the hat evenly on the glass. As simple as this trick seems in explanation, it is nevertheless wonderfully illusive, and can be especially recommended to the amateur. [Illustration: Fig. 8] * * * * *