▁collect ▁the ▁tax es . ▁On ▁beh alf ▁of ▁the ▁F erme ▁générale ▁Lav ois ier ▁commission ed ▁the ▁building ▁of ▁a ▁wall ▁around ▁Paris ▁so ▁that ▁custom s ▁duties ▁could ▁be ▁collected ▁from ▁those ▁transport ing ▁goods ▁into ▁and ▁out ▁of ▁the ▁city . ▁His ▁participation ▁in ▁the ▁collection ▁of ▁its ▁tax es ▁did ▁not ▁help ▁his ▁reputation ▁when ▁the ▁Re ign ▁of ▁T error ▁began ▁in ▁France , ▁as ▁tax es ▁and ▁poor ▁government ▁reform ▁were ▁the ▁primary ▁motiv ators ▁during ▁the ▁French ▁Revolution . ▁ ▁Lav ois ier ▁cons olid ated ▁his ▁social ▁and ▁economic ▁position ▁when , ▁in ▁ 1 7 7 1 ▁at ▁age ▁ 2 8 , ▁he ▁married ▁Marie - An ne ▁Pier ret te ▁Paul ze , ▁the ▁ 1 3 - year - old ▁daughter ▁of ▁a ▁senior ▁member ▁of ▁the ▁F erme ▁générale . ▁She ▁was ▁to ▁play ▁an ▁important ▁part ▁in ▁Lav ois ier ' s ▁scientific ▁career — not ably , ▁she ▁translated ▁English ▁documents ▁for ▁him , ▁including ▁Richard ▁Kir wan ' s ▁Ess ay ▁on ▁Ph log ist on ▁and ▁Joseph ▁Pri est ley ' s ▁research . ▁In ▁addition , ▁she ▁assist ed ▁him ▁in ▁the ▁labor atory ▁and ▁created ▁many ▁sketch es ▁and ▁car ved ▁eng rav ings ▁of ▁the ▁labor atory ▁instruments ▁used ▁by ▁Lav ois ier ▁and ▁his ▁colle agues ▁for ▁their ▁scientific ▁works . ▁Madame ▁Lav ois ier ▁edited ▁and ▁published ▁Antoine ' s ▁mem oir s ▁( wh ether ▁any ▁English ▁transl ations