Show new sperry searchlight night visitors to the electrical exposition at now new york were astonished at the th new searchlight mounted on the roof of grand central palace which has a brilliance 22 times grenter greater than the famous light at sandy hook hople I 1 it Is the invention of elmer A f sperry already known for his gyrocompass compass 9 4 s and aeroplane stabilizer md and who Is 15 h a member of thet the consulting board the iqual in intensity the sun at eight algil t oclo cl I 1 in q the morning at this time of the year the searchlight burns a superheated super heated vapor in the cavity of its positive olec efforts will be made to sig itil philadelphia 91 miles away with ith ray |