▁h ired ▁Car lier ▁as ▁a ▁consult ant - prop ag and ist ▁task ed ▁with ▁prom oting ▁new ▁bre eds ▁of ▁sheep ▁and ▁new ▁she ph erd ing ▁practices . ▁ ▁In ▁ 1 7 6 2 , ▁Car lier ▁published ▁Consider ations ▁on ▁the ▁Me ans ▁of ▁Re - est ab lish ing ▁in ▁France ▁Good ▁Species ▁of ▁W ool ▁She ep ▁and ▁Bert in ▁distributed ▁copies ▁to ▁agricult ural ▁soci eties ▁throughout ▁France . ▁In ▁ 1 7 6 3 , ▁when ▁Bert in ▁turned ▁his ▁attention ▁to ▁F lem ish ▁sheep , ▁Car lier ▁produced ▁a ▁book ▁on ▁the ▁subject , ▁Inst ruction ▁in ▁the ▁M anner ▁of ▁R ais ing ▁and ▁Per fect ing ▁the ▁Good ▁Species ▁of ▁W ool ▁She ep ▁in ▁Fland ers . ▁This ▁book ▁was ▁highly ▁influ ential ▁in ▁the ▁subsequent ▁ad option ▁of ▁F lem ish ▁bre eds ▁throughout ▁France . ▁Car lier ▁was ▁then ▁task ed ▁with ▁producing ▁a ▁question naire ▁to ▁be ▁sent ▁to ▁all ▁the ▁regions ▁of ▁France ▁on ▁bre eding ▁practices . ▁This ▁el ic ited ▁over ▁ 3 0 0 ▁responses . ▁Car lier ▁himself ▁synth es ised ▁the ▁data ▁in ▁a ▁two - volume ▁publication ▁in ▁ 1 7 7 0 , ▁Tre aty ▁on ▁W ool ▁She ep , ▁or ▁a ▁Method ▁of ▁R ais ing ▁and ▁Per fect ing ▁the ▁H erd s ▁in ▁the ▁Field s ▁and ▁the ▁She ep fold , ▁a ▁Pract ical ▁Work . ▁ ▁Car lier ▁wrote ▁an ▁important ▁history