156 



THE WORLD'S ADVANCE 



A WOODEN TRAFFIC OFFICER. 



Charlotte, Michigan, a town the ex- 

 chequer of which will not permit salaried 

 traffic officers, has solved the "safety 



first" prob- 

 lem at the 

 street cross- 

 ing in a most 

 unique and 

 e ff e c t i v e 

 fashion. This 

 is accom- 

 plished 

 through 

 >a mechanical 

 "traffic of- 

 ficer" which 

 stands at its 

 post in all 

 kinds of 

 weather 

 without sal- 

 ary or com- 

 plaint. 



Stout 

 cross-arms have been erected at the 

 intersection of the principal street, 

 properly fastened to the pavement to 

 insure permanence. These cross-arms 

 bear crisp, brief legends which direct 

 the traffic. At first these devices in- 

 vited some criticism because of their 

 novelty, but practice has demonstrated 

 their efficiency in reducing cross confu- 

 sion, with the result that the idea is 

 spreading to neighboring cities. 



A Wooden Sign Post at a 



Street Intersection Solves the 



Traffic Problems of a Small 



Town. 



AUSTRIAN SUBMARINES BUILT 

 BY AMERICANS 



A recent incident demonstrates the 

 value and efficiency of American con- 

 struction and invention: The Austrian 

 submarine known as the U-$ which de- 

 stroyed the French cruiser Leon Gam- 

 betta in the Adriatic, was built by the 

 Whitehead Company at their docks in 

 Fiume, Austria, under license of patents 

 belonging to the American firm known as 

 the Electric Boat Company. 



The U-$ was delivered to the Austrian 

 Government as far back as 1910. Accord- 

 ing to Lawrence Y. Spear, vice-president 



of the Electric Boat Company, the craft 

 was constructed under the supervision of 

 his company, and from detailed plans 

 supplied by them. The engines and other 

 important machinery were constructed by 

 the same company in this country and 

 shipped to Austria for installation. 



The vessel and her sister ship, the U-6, 

 are of the same displacement, speed and 

 radius as the five United States subma- 

 rines of the C class which now constitute 

 the floating defence of the Panama Canal. 

 All the above vessels are smaller and less 

 powerful than the more modern boats, 

 but have nevertheless shown great utility 

 for defensive purposes. It must be re- 

 membered that the torpedoing of the 

 Leon Gambetta occurred nearly 300 miles 

 away from the base of the submarine. 



WOODEN VALVE 100 YEARS OLD 

 FOUND IN NEW YORK. 



While making excavations in one of 

 the most congested sections of the City 

 of New York, workmen recently came 

 upon several relics of a day long past 

 in the history of the water supply serv- 

 ice of that ^^^^^^^^^^^^^^ 

 city. The 

 most inter- 

 esting speci- 

 mens of the 

 find consisted 

 of a number 

 of old, wood- 

 e n g a t e- 

 valves, which 

 were used in 

 the period 

 shortly f o 1- 

 lowing the 

 war for Am- 

 erican i n d e- 

 pendence, for 

 regular- 

 i n g the flow 

 of water 

 through the wooden pipe lines which 

 formed the water supply system of the 

 city at that time. 



Iron was not used then for pipes, as 

 it was considered injurious to the health 

 to drink water which had been in con- 



Although Buried in the Earth 



for Nearly 100 Years, This 



Wooden Valve Was Found in 



Excellent Condition. 



