rapid printing of braille Itea reading ding matter for the blind has not been generally an available callable for the reason that under the older system of braille printing it was necessary to mabe make every dot by hand so that reading matter for the blind was not only scarce but often prohibitory in price A great advance in this mat ter Is in a recently invented rotary press for the printing of braille type which has been installed at the na lional institute for the blind la in lon don sixteen thousand pages ot of braille reading material are being turned out in an hour a speed five times greater than has ever before been possible