Popular Science Monthly 



245 



The Largest American 

 Flag in Existence 



THE city of St. Louis, 

 Missouri, possesses the 

 largest American flag in ex- 

 istence, as far as is known. 

 It is 150 feet long and 78 feet 

 wide. Each of the thirteen 

 stripes is six feet wide. Imag- 

 ine a plot of ground contain- 

 ing 11,700 square feet — al- 

 most one-quarter of an acre — 

 and you will have an idea of 

 the size of the flag. When used 

 in parades it requires two hun- 

 dred people to carry it. But on 

 account of its great width it 

 cannot be carried through 

 many of the streets of thecity. 



The submarine hoists a sail 'and runs on the surface 

 to approach within striking distance of a fast 



in order 

 freighter 



This Machine Is Five Times as Fast as 

 an Expert Bank Teller 



AN expert bank teller can count by 

 l hand from six to ten thousand coins 

 per hour for one hour only. With the new 

 machine illustrated one man, not an expert, 

 can count fifty thousand coins per hour 

 indefinitely. 



Mistakes are impossible. In the course 

 of a certain, test, two thin dimes 

 were glued together and mixed 

 with the mass of coins. The 

 machine separated the coins and 

 the final registration showed the 

 correct count. Mutilated 

 coins or thick counterfeits 

 stop the machine. 



There is a sepa- 

 rate head or counter 

 for each denomina- 

 tion of coin, and the 

 change from one size 

 to another can be 

 made instantly. The 

 coins pass between 

 two wheels, one at a 

 time. The cyclome- 

 ter, which is in plain 

 view, shows the ex- 

 act number of coins- 

 which have passed 

 through the machine 

 at any time. The 

 machine can be ad- 

 justed to stop auto- 

 matically. There are 

 no springs in it. 



This machine automatically counts and 

 wraps up coins of any denomination at fce 

 rate of from 500 to 1000 coins per minute 



Submarines Disguised as Sailing 

 Vessels, Creep Up to Their Prey 



TO deceive vigilant merchant ships, the 

 commanders of German submarines 

 disguise their vessels when they can. 

 Frequently they hoist sails so that their 

 craft look like peaceful sailing vessels. 



According to the captain of a swift 

 British freighter, as he was standing on the 

 bridge of his vessel one day he sighted a 

 craft lying low in the water, far astern. 

 He had looked in that direction a few 

 minutes before and there was no ship in 

 sight. That aroused his suspicion. 

 Furthermore, the ship was moving 

 along much faster 

 than the wind alone 

 could have taken 

 her. Ordering full 

 speed ahead, he kept 

 his eyes on the 

 strange vessel, final- 

 ly becoming con- 

 vinced that it was a 

 German submarine 

 disguised as a sailing 

 vessel. There was 

 not much of a breeze 

 but the ship cut 

 through the water at 

 high speed just the 

 same. After the 

 mysterious craft had 

 followed hia vessel 

 for several hours it 

 disappearedentirely, 

 sails and all. 



