9 ▁December ▁ 1 8 1 3 ▁– ▁ 2 6 ▁November ▁ 1 8 8 5 ) ▁was ▁an ▁Irish ▁chem ist ▁and ▁phys ic ist ▁who ▁did ▁important ▁work ▁on ▁phase ▁trans itions ▁between ▁g ases ▁and ▁liqu ids . ▁He ▁was ▁a ▁long time ▁professor ▁of ▁chem istry ▁at ▁Queen ' s ▁University ▁of ▁B elf ast . ▁ ▁Life ▁Andrew s ▁was ▁born ▁in ▁B elf ast , ▁Ireland , ▁where ▁his ▁father ▁was ▁a ▁lin en ▁merchant . ▁He ▁attended ▁the ▁B elf ast ▁Academy ▁and ▁the ▁Royal ▁B elf ast ▁Academ ical ▁Institution , ▁where ▁at ▁the ▁latter ▁of ▁which ▁he ▁studied ▁mathematics ▁under ▁James ▁Thom son . ▁In ▁ 1 8 2 8 ▁he ▁went ▁to ▁the ▁University ▁of ▁Glasgow ▁to ▁study ▁chem istry ▁under ▁Professor ▁Thomas ▁Thom son , ▁then ▁studied ▁at ▁Tr inity ▁College , ▁Dublin , ▁where ▁he ▁gained ▁distinction ▁in ▁class ics ▁as ▁well ▁as ▁in ▁science . ▁ ▁Finally , ▁at ▁University ▁of ▁Edinburgh ▁in ▁ 1 8 3 5 , ▁he ▁was ▁awarded ▁a ▁doctor ate ▁in ▁medicine . ▁ ▁Andrew s ▁began ▁a ▁successful ▁medical ▁practice ▁in ▁his ▁native ▁B elf ast ▁in ▁ 1 8 3 5 , ▁also ▁giving ▁instruction ▁in ▁chem istry ▁at ▁the ▁Academ ical ▁Institution . ▁In ▁ 1 8 4 5 ▁he ▁was ▁appointed ▁vice - pres ident ▁of ▁the ▁newly ▁established ▁Queen ' s ▁University ▁of ▁B elf ast , ▁and ▁professor ▁of ▁chem istry ▁there . ▁He ▁held ▁these ▁two ▁offices