Show writing on the blonds an ali interesting achievement in electrical science is the adaptation of the search light apparatus to tile purposes ot of advertising by an inglish Iu glish expert the trial night was wa s unfortunately absolutely clear anil and there were no clouds atall at ill on which the rays of light could be thrown howver abo practicability tic of 0 the scheme is ia reported to have been proved by directing the search light on oil a cloud of steam and on other wat material erial objects such as a bank of 0 trees a honsa wall and the grass grasa lawn when ineich ili each case the words etwood out olat clearly and well defined in letters of light even at a distance of fully half a ft mile the words did not appear to lose any of their distinct distinctness ri the effect of directing the bearn beam of 2 light on a it c loud cloud of steam was very curious the letters being repeated again aal again one behind the other increasing in size as each puff 0 of steam drifted away in tho the distance |