, ▁and ▁in ▁ 1 8 9 3 ▁he ▁was ▁appointed ▁Ass istant ▁Sur geon ▁to ▁King ' s ▁College ▁Hospital . ▁He ▁was ▁trained ▁as ▁a ▁sur geon ▁by ▁Sir ▁Joseph ▁L ister , ▁and ▁assist ed ▁L ister ▁in ▁his ▁last ▁operation . ▁ ▁Che at le ▁was ▁a ▁Cons ult ing ▁Sur geon ▁to ▁the ▁army ▁in ▁South ▁Africa ▁during ▁the ▁Second ▁Bo er ▁War ▁( 1 8 9 9 – 1 9 0 2 ). ▁In ▁ 1 9 0 0 ▁he ▁was ▁appointed ▁Sur geon ▁and ▁Te acher ▁of ▁S urg ical ▁Path ology ▁at ▁King ' s ▁College ▁Hospital . ▁During ▁World ▁War ▁I , ▁in ▁ 1 9 1 5 ▁he ▁was ▁appointed ▁Sur geon - R ear - Ad mir al ▁in ▁the ▁Royal ▁Navy . ▁He ▁served ▁at ▁the ▁Royal ▁Naval ▁Hospital ▁Has lar ▁near ▁Port sm outh ▁and ▁on ▁a ▁hospital ▁ship ▁in ▁the ▁Gal lip oli ▁Camp aign . ▁In ▁ 1 9 1 9 ▁he ▁was ▁made ▁a ▁Fellow ▁of ▁King ' s ▁College ▁London . ▁He ▁replaced ▁Freder ic ▁Francis ▁Burg hard ▁as ▁Senior ▁Sur geon ▁and ▁L ect urer ▁of ▁S urg ery ▁in ▁ 1 9 2 3 . ▁At ▁a ▁special ▁meeting ▁of ▁the ▁Medical ▁Board ▁of ▁the ▁King ' s ▁College ▁Hospital ▁Medical ▁School ▁held ▁at ▁Che at le ' s ▁house ▁in ▁Har ley ▁Street ▁in ▁February ▁ 1 9 2 8 , ▁the ▁Board ▁recorded : ▁ ▁Che at le ▁retired ▁in ▁ 1