Show rare books filmed the tha rare and valuable volumes of the sterling library ot of yale are being preserved by copying on tiny films jn in this nay persons interested may be allowed to consult and examine the works without the necessity of risking the originals thirty two hundred bundred pages may be copied on oil feet of film and at the rate of or pages an hour A book of pages may be copied on a film will which ell when rolled Is no larger than a spool of cotton the films when properly cared for tire are almost everlasting I 1 |