. ▁▁ 1 8 4 0 ▁Anti - S la very ▁Society ▁convention ▁▁ ▁On ▁ 1 7 ▁April ▁ 1 8 4 0 , ▁the ▁British ▁and ▁Foreign ▁Anti - S la very ▁Society ▁was ▁formed ▁to ▁campaign ▁for ▁world wide ▁abol ition ▁of ▁sla very . ▁A ▁short ▁time ▁later , ▁the ▁first ▁World ▁Anti - S la very ▁Convention ▁was ▁held ▁in ▁London , ▁attract ing ▁an ▁international ▁participation . ▁L ec es ne ▁attended ▁the ▁convention ▁and ▁is ▁dep icted ▁in ▁a ▁painting ▁The ▁Anti - S la very ▁Society ▁Convention , ▁ 1 8 4 0 ▁by ▁Benjamin ▁Hay don ( 1 8 4 1 ). ▁ ▁According ▁to ▁a ▁record ▁at ▁the ▁Mont ser rat ▁( West ▁Ind ies ) ▁National ▁Trust ▁from ▁the ▁Official ▁Ass igne e ▁to ▁the ▁President ▁Admin ister ing ▁the ▁Government ▁William ▁Sh i ell , ▁Les c ene ▁was ▁declared ▁bank rupt ▁in ▁ 1 8 4 5 ; ▁the ▁Island ▁Secretary ▁Henry ▁L oving ▁apparently ▁ow ed ▁Les c ene ▁£ 1 9 8 ▁ 1 2 s ▁ 3 d . ▁ ▁Following ▁a ▁bout ▁of ▁p neum onia , ▁Louis ▁Cel este ▁L ec es ne ▁died ▁on ▁ 2 2 ▁November ▁ 1 8 4 7 ▁at ▁his ▁residence ▁at ▁the ▁Fen ch urch ▁buildings , ▁Fen ch urch ▁Street ▁in ▁London . ▁At ▁the ▁end ▁of ▁May ▁in ▁ 1 8 4 8 , ▁The ▁Times ▁announced ▁the ▁sale ▁of ▁the ▁" super ior " ▁effects