Show I 1 popularity OF THE LAMP 11 7 it is not generally known that pittsburg is one of the largest manufacturers of elec I 1 trie illuminants a distinction which is due to the enormously increasing business ot of the bernst lamp company this concern which s is one of the subsidiary westinghouse 0 inter ests began some years ago to introduce the bernst lamp an illuminant invented by pro fessor walter bernst of the university of goettinger Goett ingen germany and somewhat different from the incandescent as well as the are arc lamp the illuminating part of this lamp consists of two cylindrically snapped bars of rare earths which when the electric current is passed through them diffuses a brilliant white light more nearly approaching daylight than any other form of illumination since these lamps were brought upon the market some of the largest offices public and store buildings in this country have been installed with them within the last week the company has received contracts which represent a larger number of candle power than any individual lighting contract that has ever been made since electric electric lamps became the popular form of artificial lighting one of these contracts from the baltimore electric company calls for lamps segregating aggregating candle power and another from the marshall field company of chicago icaco for lighting their dry goods store calls tor for candle power making a tota tal of candle power the marall hall field people only decided upon the bernst lamp mp after they had made an exhaustive hau hau stive test lasting over two years of every other her form n of modern artificial illumination another ther contract which the company is now turning aning out in its shops is cante dle power for the new terminal station of the e pennsylvania sylvania nn railroad in new york city |