Reconstruction problems of graphs and designs
Agnes Hui Chan · OhioLink ETD Center (Ohio Library and Information Network) · 1975
This m aterial was produced fro m a m ic ro film copy o f th e o rig in al do cu m en t.W hile th e most advanced technological means to photograph and reproduce th is docum ent have been used, th e q u a lity is h eavily dependant upon th e q u a lity o f th e orig inal subm itted.T h e fo llo w in g ex p la n atio n o f techniques is provided to h elp you understand markings o r patterns w hich may appear on this rep ro d u ctio n .1. T h e sign o r " ta rg e t" fo r pages ap p aren tly lackin g fro m th e docum ent p h o to p a p h e d is "M issing P age(s)".I f i t was possible to o b tain th e missing page(s) o r section, th ey are spliced in to th e film along w ith ad jacent pages.T h is m ay have necessitated c u ttin g th ru an image and d u p lic atin g adjacent pages to insure you com plete c o n tin u ity . 2 .When an image on th e film is o b lite ra te d w ith a large round black m ark, it is an in d ic a tio n th a t th e photographer suspected th a t th e copy m ay have moved du ring exposure and thus cause a b lu rred im age.Y o u w ill fin d a good image o f th e page in th e adjacent fram e. 3 .When a m ap, draw ing o r c h a rt, e tc ., was p a rt o f th e m ate ria l being photographed th e photographer fo llo w e d a d e fin ite m ethod in "s ectio n in g " th e m a te ria l.I t is custom ary to begin photoing a t th e upper le f t hand co m er o f a large sheet and to co n tin u e p h oto ing fro m le ft to rig h t in equal sections w ith a small overlap.I f necessary, sectioning is co n tin u ed again -beginning below th e fir s t ro w and co n tin u in g on u n til co m p lete. 4 .T h e m a jo rity o f users in d ic a te th a t th e te x tu a l c o n te n t is o f greatest value, how ever, a som ewhat higher q u a lity reprod uction could be made fro m "p hotograp hs" i f essential to th e understanding o f th e d issertatio n .S ilver p rin ts o f "photographs" m ay be ordered a t a d d itio n a l charge b y w ritin g th e O rd er D ep ertm e n t, giving th e catalog num ber, t it le , au th o r and sp ecific pages you wish reproduced.5.