. Electric railway journal . t exceed 7 ft. 6 in. The committee concluded that it was unwise to draftany regulations limiting the drop of potential on unin-sulated return conductors. It said that the cases ofharmful effects due to potential drop in excess of thatallowed by the tramway act had been few and unim-portant and readily corrected by the railway companieson their own initiative. The only question was theeffect of these currents on the instruments in observa-tories, and the committee felt that regulations shouldbe limited to the portion of electric railways within thevicinity of the ob
. Electric railway journal . t exceed 7 ft. 6 in. The committee concluded that it was unwise to draftany regulations limiting the drop of potential on unin-sulated return conductors. It said that the cases ofharmful effects due to potential drop in excess of thatallowed by the tramway act had been few and unim-portant and readily corrected by the railway companieson their own initiative. The only question was theeffect of these currents on the instruments in observa-tories, and the committee felt that regulations shouldbe limited to the portion of electric railways within thevicinity of the observatory. Edinburgh Corporation Tramways BeginOverhead Construction ALTHOUGH the motor omnibus has displaced thel\. cable cars in Edinburgh, Scotland, on the majorityof routes, additional factors presented their applica-tion on the route from Leith to Edinburgh. To allowa continuous trip between the two cities at the leastcost, electrification appeared most promising. Thephotograph reproduced herewith shows the staff of the. Setting Tubular Steel Pole in Edinburgh Edinburgh Corporation Tramways present at the erect-ing of the first pole to support the tramway overheadconstruction since the tramways passed into the handsof the municipality. A special portable derrick fur-nished means of rapid setting of the tubular steel poles. The London General Omnibus Company has justcompleted a motor coach which has many new seats are arranged so that a zigzag gangway runsthe entire length of the coach. There is ample roomfor every passenger. The most striking new featurewhich the coach displays, however, is the arrangementof the hood, which, when it is not in use, is foldedaway in front of the driver. It is claimed for thisdevice that, among other advantages, it gives the drivera better view to the rear of the coach, decreases therear overhang, and prevents damage to the hood whenthe coach is being reversed. A Correction in Discussion on Trolley WireAmerican Copper Products Co
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