▁to ▁super int end ▁the ▁London ▁Mission ary ▁Society ' s ▁press ▁in ▁Shang hai . ▁In ▁this ▁position , ▁he ▁acquired ▁a ▁wide ▁knowledge ▁of ▁Chinese ▁religion ▁and ▁civil isation , ▁and ▁especially ▁of ▁mathematics , ▁en abling ▁him ▁to ▁demonstrate ▁in ▁his ▁paper ▁J ott ings ▁on ▁the ▁Science ▁of ▁the ▁Chinese ▁that ▁Sir ▁George ▁Hor ner ' s ▁method ▁( 1 8 1 9 ) ▁of ▁solving ▁equations ▁of ▁all ▁orders ▁had ▁been ▁known ▁to ▁the ▁Chinese ▁mathemat icians ▁of ▁the ▁ 1 4 th ▁century . ▁ ▁He ▁made ▁several ▁jour ne ys ▁into ▁the ▁interior , ▁not ably ▁in ▁ 1 8 5 8 ▁with ▁Lord ▁El gin ▁on ▁a ▁British ▁Navy ▁gun bo at ▁up ▁the ▁Yang t ze ▁and ▁to ▁N ank ing , ▁where ▁he ▁served ▁as ▁one ▁member ▁of ▁a ▁deleg ation ▁of ▁three ▁to ▁meet ▁with ▁officials ▁of ▁the ▁Ta ip ing , ▁and ▁in ▁ 1 8 6 8 ▁with ▁Griff ith ▁John ▁to ▁the ▁capital ▁of ▁S zech uen ▁and ▁the ▁source ▁of ▁the ▁Han . ▁He ▁completed ▁the ▁distribution ▁of ▁one ▁million ▁Chinese ▁New ▁Test aments ▁provided ▁by ▁the ▁British ▁and ▁Foreign ▁Bible ▁Society ' s ▁special ▁fund ▁of ▁ 1 8 5 5 . ▁From ▁ 1 8 6 3 ▁he ▁was ▁an ▁agent ▁of ▁the ▁British ▁and ▁Foreign ▁Bible ▁Society . ▁He ▁was ▁succeeded ▁by ▁Samuel ▁D yer , ▁Junior , ▁the ▁son ▁of ▁Samuel ▁D yer ▁and ▁brother - in - law ▁of ▁Hudson ▁Taylor . ▁