▁with ▁the ▁iron ▁and ▁the ▁hydro gen ▁to ▁emer ge ▁from ▁the ▁end ▁of ▁the ▁pipe . ▁He ▁submitted ▁his ▁find ings ▁of ▁the ▁composition ▁of ▁water ▁to ▁the ▁Ac adémie ▁des ▁Sciences ▁in ▁April ▁ 1 7 8 4 , ▁reporting ▁his ▁figures ▁to ▁eight ▁decimal ▁places . ▁O pp osition ▁respond ed ▁to ▁this ▁further ▁experiment ation ▁by ▁stating ▁that ▁Lav ois ier ▁continued ▁to ▁draw ▁the ▁incorrect ▁conclus ions ▁and ▁that ▁his ▁experiment ▁demonstrated ▁the ▁disp lacement ▁of ▁ph log ist on ▁from ▁iron ▁by ▁the ▁combination ▁of ▁water ▁with ▁the ▁metal . ▁Lav ois ier ▁developed ▁a ▁new ▁appar atus ▁which ▁util ized ▁a ▁p neum atic ▁tr ough , ▁a ▁set ▁of ▁bal ances , ▁a ▁therm ometer , ▁and ▁a ▁bar ometer , ▁all ▁cal ibr ated ▁carefully . ▁Th irty ▁sav ants ▁were ▁invited ▁to ▁witness ▁the ▁decomposition ▁and ▁synth esis ▁of ▁water ▁using ▁this ▁appar atus , ▁convin cing ▁many ▁who ▁attended ▁of ▁the ▁correct ness ▁of ▁Lav ois ier ' s ▁theories . ▁This ▁demonstr ation ▁established ▁water ▁as ▁a ▁comp ound ▁of ▁o xygen ▁and ▁hydro gen ▁with ▁great ▁certain ty ▁for ▁those ▁who ▁viewed ▁it . ▁The ▁dis sem ination ▁of ▁the ▁experiment , ▁however , ▁proved ▁sub par , ▁as ▁it ▁lack ed ▁the ▁details ▁to ▁properly ▁display ▁the ▁amount ▁of ▁precision ▁taken ▁in ▁the ▁measurements . ▁The ▁paper ▁ended ▁with ▁a ▁hast y ▁statement ▁that ▁the ▁experiment ▁was ▁" more ▁than ▁sufficient ▁to ▁lay ▁hold ▁of ▁the ▁certain ty ▁of