Norwich bulletin., 1915-03-18

their customers that a system of reg ulating the running of trucks is nee essary. to obtain the full return on their investment. Excessive speed is the one point that all suggestions along this line explain should be avoided.
 Speeding is probably the greatest crime that can be perpetrated upon an innocent truck" says a truck deal CT. If a truck is moved along the road at 10 miles an hour under full load, it is more than likely that it will continue to do so for a very long time without exhibiting undue weak ness at any point. But if a truck is driven without any load at 20 miles an hour, remembering that the truck weights more or less than 60 per cent of the gross rated load, it is a cer- tainty that the truck will wear out long before it pays for itself in serv- ice.
 Ut is not believed that the average driver fully understands how detri- mental it is to the life of a truck to drive it at high speed when it is emp ty. The energy stored in a moving mass responds to the rule, which may for convenience be expressed as fol- lows:
 ''The energy stored in a moving mass is proportional to the weight in pounds multiplied by the square of the speed. n other words, if the speed is doubled the strain is multi piled by four and the life of all parts materially diminished"
 Work has been started on the Mys- tic Stonington shore road and through traffic should go from Groton to West erly cia either Mystic and then turn to the left after crossing Mystic bridge and take the Hinckley Hill road to Westerly, which turns to the right a tU-n of else reach the Hinckley Hill road from Groton via Old Mystic and then about mile south turn to the left.
 The Shore road from Mantle to Lit tie Boston through ndnan Woods is under construction, and traffic should follow the main trunk line between Old Lyme and New London, turning at Flanders if bound for Mantle.
 Both of these roads are passable at the drivers rist, but are better avoid ed.
 The use of aluminium by automobile manufacturers has become pretty gen eral in the last few years, but there is only one company that uses cast aluminium exclusively in building it's touring and enclosed bodies. Its use, at first, was confined to dashes seats and doors, as it was thought that the pure aluminium could not be ScSI lllIIIJ CIlu ciuuIlS Ol JULIET IlSldlS made it too heavy. Later experiments showed, however, that pure aluminium could be successfully cast in any size and as thin as one-eight of an inch or thinner. This made it possible to make bodies lighter than the sheet metal construction by casting and this kind of body was found to have many advantages over any other material.
 On account of having a rigid sur- face, they will not dent easily in handling-an objectionable feature of bodies made out of sheet metal. There is also an increase factor of safety to the occupants to be considered. In case of accidents and smashups, a cast aluminium body will not crush as easily as a sheet metal body and is thus much safer to ride in.
 An enclosed car was recently sent to the factory for repairs. The front end of the car had been run into by a To- comotive and was completely demol- ished up to the drivers seat. The body back of the hood was not dam