=Wireless Telegraphy.= The wireless has a great attraction for most boys. Some attach antennae to the kite, others drop a number of wires from the kite line, as in Fig. 169. A stick is suspended similar to a banner, except that it requires only two suspension cords; another stick hangs by the wires about ten feet below, and below this the wires come together and a wire follows the kite line to the receiver and to the ground. Caution is here given against the use of a wire kite line. One boy tried this and when the kite lowered in a lull of the breeze the wire crossed the trolley line and in the mix-up the boy became entangled in the line by attempting to get his kite up again, and received quite a shock; but there was no serious results. His instrument and attachments were working splendidly. The winding of the coil is a very good problem for any boy. [Illustration: FIG. 170.] =Photography.= Some boys are interested in photography, and the kite gives opportunity for taking bird’s-eye views. The kodak must rest on a framework and the tripping line be so attached as not to cause the instrument to swing when the shutter is snapped. The tripping can be accommodated by means of the rear suspension cord, Fig. 170. The shutter should trip very easily so as to cause as little swinging as possible. An extension of the lever might be an advantage. The two sticks of the framework should be halved together so as to bring the upper surfaces level. A screw-eye placed in the cross-stick directly below the tripping lever holds the tripping string so that it draws on the camera in line with its own seating on the framework, and causes the minimum amount of swaying. Figs. 171 and 172 were taken on a kite line that was sent up from the Y. M. C. A. building. The speck of white shown on the roof near the ventilator is the operator. Figs. 173 and 174 were taken by a twelve year old boy and while not as high as the first is a very good start. [Illustration: FIG. 171.] [Illustration: FIG. 172.] [Illustration: FIG. 173.] [Illustration: FIG. 174.]