Popular Science Monthly 



353 



The More Fruit You Eat the Less 

 Water You Need Drink 



MOST fruits contain from 75 to 95 per 

 cent water, and a balance of woody 

 fiber, or cellulose, fruit sugar and minerals. 

 Thus the free use of fruit daily, insures a 

 greater supply of water to the body. 



The cellulose of the fruit supplies bulk 

 and a mechanical stimulation which pro- 

 motes waste elimination. Acid fruits, such 

 as oranges, lemons, limes, and most ber- 

 ries, contain a certain chemical compound 

 called "vitamines," in a very stable form. 

 These vitamines are believed to purify the 

 blood and to prevent scurvy and various 

 skin diseases. 



Do Your Telephoning While Riding 

 On a Trolley-Car 



WHAT an advantage to be able to 

 telephone from a moving train ! Sup- 

 pose you want to warn your wife that 

 you are bringing a friend home 

 dinner. How easy, if you could 

 take down a receiver in the 

 trolley-car and break the 

 news to her while you are 

 yet afar off. Or, maybe you 

 are a detective and have 

 spotted a long-sought crim- 

 inal. A telephone would 

 enable you to communicate 

 with headquarters at once. 



At any rate, L. Zsitovs- 

 zky of Philadelphia, has 

 shown that this can be 

 done by inventing an ap- 

 paratus attachable to an 

 ordinary trolley-car. In 

 addition to the regular 

 feed wire above are two 

 other parallel wires for the 

 transmission of messages. 

 Contact is effected by small 

 trolleys similar to the large 

 trolley. The two wheels 

 are mounted on arms con- 

 necting with a split collar, 

 attached to the end of a 

 metal pole on the top of 

 the car. 



The wires pass down 

 through the pole and enter 

 the telephone instruments 

 in the ordinary way. They 

 are arranged below the 

 feed wire as a means of 

 protection. 



The train - telephone. The 

 telephone wire is arranged 

 below the trolley feed wire 



The lock fits over the porcelain terminal 

 that extends from the magneto case 



A Lock Which Makes the Ford Car 

 Thief Proof 



POLICE statistics show that 

 thieves are constantly steal- 

 ing Fords. There are plenty 

 to select from and they are 

 easy to dispose of. The 

 lock illustrated bids fair to 

 reduce to a marked extent 

 the get-aways. It shuts off 

 the ignition at its source. 

 The design and location 

 of the Ford magneto lends 

 itself readily to the posi- 

 tioning of the device. The 

 lower end of the cartridge 

 fits over the porcelain ter- 

 minal that extends from 

 the magneto case, while the 

 top of the lock extends 

 through a hole in the floor 

 of the car which places the 

 device conveniently under 

 the coil box on the dash. 



By pressing the small 

 lever down with the foot, 

 the engine is shut off and 

 the ignition system locked. 

 A special serial key is re- 

 quired to unlock and place 

 the system in operation. 

 When locked it is impossi- 

 ble to make a new connec- 

 tion with the magneto, 

 since forcing the lock from 

 its support will destroy 

 the connections and render 

 the magneto inactive. 



