▁in ▁Baltimore , ▁Maryland . ▁At ▁J H U ▁he ▁had ▁to ▁teach ▁fresh man ▁classes ▁in ▁chem istry , ▁and ▁it ▁quickly ▁became ▁apparent ▁that , ▁while ▁he ▁was ▁a ▁genius ▁at ▁developing ▁theories ▁in ▁physical ▁chem istry , ▁he ▁had ▁little ▁talent ▁for ▁teaching . ▁He ▁was ▁dismiss ed ▁by ▁J H U ▁after ▁one ▁sem ester . ▁ ▁Brown ▁University ▁On ▁leaving ▁J H U , ▁he ▁accepted ▁a ▁position ▁( in vol ving ▁the ▁teaching ▁of ▁statistical ▁mechan ics ▁to ▁gradu ate ▁students ▁in ▁chem istry ) ▁at ▁Brown ▁University ▁in ▁Prov idence , ▁Rh ode ▁Island , ▁where ▁it ▁became ▁clear ▁that ▁he ▁was ▁no ▁better ▁at ▁teaching ▁advanced ▁students ▁than ▁fresh men , ▁but ▁he ▁made ▁significant ▁contributions ▁to ▁statistical ▁mechan ics ▁and ▁therm od ynam ics . ▁The ▁only ▁gradu ate ▁student ▁who ▁could ▁really ▁understand ▁his ▁lect ures ▁on ▁electro ly te ▁systems , ▁Raymond ▁Fu oss , ▁worked ▁under ▁him ▁and ▁eventually ▁joined ▁him ▁on ▁the ▁Y ale ▁chem istry ▁fac ulty . ▁ ▁In ▁ 1 9 3 3 , ▁when ▁the ▁Great ▁De pression ▁limited ▁Brown ' s ▁ability ▁to ▁support ▁a ▁fac ulty ▁member ▁who ▁was ▁only ▁useful ▁as ▁a ▁research er ▁and ▁not ▁a ▁teacher , ▁he ▁was ▁let ▁go ▁by ▁Brown , ▁being ▁h ired ▁after ▁a ▁trip ▁to ▁Europe ▁by ▁Y ale ▁University , ▁where ▁he ▁remained ▁for ▁most ▁of ▁the ▁rest ▁of ▁his ▁life , ▁ret iring ▁in ▁ 1 9 7 2 . ▁ ▁His ▁research