Show rapid printing of braille heading matter for the blind haa not been generally available for the reason that under the older system of braille printing it was necessary to mike 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 matter Is in a recently invented rotary press for the printing of braille type which has been installed at the national institute tor the blind in london sixteen thousand pages of braille reading material are being turned out in an hour a speed five times greater than has ever before been possible |