▁an ▁assistant ▁to ▁Professor ▁George ▁Ne um ayer ▁at ▁the ▁Flag st aff ▁Hill ▁magnetic ▁observ atory , ▁a ▁project ▁fund ed ▁by ▁the ▁King ▁of ▁Bav aria . ▁In ▁February ▁ 1 8 5 9 ▁he ▁left ▁to ▁take ▁up ▁a ▁position ▁with ▁the ▁Crown ▁Land s ▁Office ▁( Sur vey ▁Department ▁of ▁the ▁Office ▁of ▁Crown ▁Land s ▁and ▁Survey ), ▁and ▁was ▁replaced ▁by ▁W . ▁J . ▁Will s ▁( short ly ▁to ▁become ▁a ▁famous ▁expl orer ). ▁It ▁is ▁likely ▁that ▁Os bor ne ▁had ▁phot ol ith ography ▁in ▁mind ▁when ▁he ▁joined ▁the ▁Department , ▁and ▁it ▁shows ▁considerable ▁faith ▁in ▁the ▁project ▁by ▁its ▁head ▁Charles ▁W . ▁Lig ar ▁that ▁D all me yer ▁of ▁London ▁was ▁commission ed ▁to ▁produce ▁the ▁large ▁l ens ▁required , ▁at ▁a ▁cost ▁of ▁£ 2 5 0 . ▁ ▁In ▁September ▁ 1 8 5 9 ▁he ▁applied ▁for ▁a ▁pat ent ▁for ▁" ob tain ing ▁l ith ographic ▁impress ions ▁with ▁the ▁aid ▁of ▁phot ography " ▁In ▁December ▁he ▁read ▁to ▁the ▁Philosoph ical ▁Institute ▁of ▁Victoria , ▁of ▁which ▁he ▁was ▁a ▁member , ▁a ▁paper ▁entitled ▁" Description ▁of ▁a ▁new ▁photo ▁l ith ographic ▁process ". ▁Dr . ▁Lig ar , ▁director ▁of ▁the ▁Survey ▁Office ▁and ▁Survey or - General ▁of ▁Victoria , ▁followed ▁with ▁an ▁end ors ement ▁of ▁the ▁system , ▁not ing ▁the ▁immense ▁saving ▁of ▁time ▁in ▁having ▁new ▁plans ▁dup licated . ▁Before