Popular Science Monthly 



763 



A rectangular frame is built up and a board bottom put in ; then the engine is mounted in the front 

 part and covered with a wood hood, the rear end of the chassis having the seat and battery boxes 



over the battery boxes. The adjusting of 

 the sheet metal is not difficult if the lines 

 are kept straight and no sags or depres- 

 sions are allowed to form. It is only neces- 

 sary to build a light frame over which the 

 metal is bent and fastened with nails or 

 wood screws. Because the sides of the 

 frame are low there is no need of doors 

 for entering the car. The seat may be 

 raised somewhat and upholstered to add to 

 the appearance of the car. When the metal 

 covered chassis is painted and striped up 

 the effect is very neat. — Cleage Field. 



An After-Dinner Trick with a 

 Table Fork 



THIS makes a clever after dinner trick, 

 the requisites for which are always at 

 hand — a silver fork and a glass of water. 

 A glass of tea will suffice and is a good 

 substitute for the glass of water; in fact 

 any glass containing a liquid will do. The 

 fork is taken up and held in the left hand, 

 as shown in the illustration. A glass of 

 water is placed 2 ft. away towards the 

 center of the table. With the thumb and 

 second finger of the right hand pinch 

 together the prongs of the fork, using the 

 nails on the extreme tip ends and pulling 



the hand away quickly. This will cause 

 the prongs to vibrate and produce sound- 

 waves. After pinching the fork-prongs and 

 producing the sound-waves the right hand 

 continues toward the glass of water where 

 the feint is made of throwing the sound 

 into the glass of water. Strange to say the 

 sound will seem to enter the glass and 

 distinctly repeat itself. Allow someone to 

 try it and they will fail. Here is the secret. 

 Hold the fork in the left 

 hand with the handle 

 about I in. from the 

 table top. At the mo- 

 ment the feint is made 

 of throwing the sound 

 allow the handle of the 

 fork to touch the table. 

 This produces the desired 

 effect as the sound vi- 

 brates through the table 

 into the glass. No one 

 will observe the resting 

 of the fork handle on the 

 table as all attention is 

 diverted towards the glass. A trial will 

 convince a person that the majority of 

 onlookers actually believe the sound is 

 picked off the fork and thrown into the 

 glass. — Clarence T. Hubbard. 



Pinching the 

 fork prongs to- 

 gether to induce 

 the vibrations 



