ard ▁" n ations " ▁of ▁students — a ▁series ▁of ▁lo os ely ▁organized ▁frat ern ities . ▁The ▁pap al ▁leg ate ▁threatened ▁S iger ▁with ▁execution ▁as ▁the ▁ring le ader ▁of ▁the ▁Pic ard ▁attack ▁on ▁the ▁French , ▁but ▁no ▁further ▁action ▁was ▁taken . ▁ ▁Works ▁ ▁In ▁the ▁ten ▁years ▁following ▁the ▁ri ot , ▁he ▁wrote ▁the ▁six ▁works ▁which ▁are ▁as cribed ▁to ▁him ▁and ▁were ▁published ▁under ▁his ▁name ▁by ▁Pierre ▁M andon net ▁in ▁ 1 8 9 9 . ▁The ▁titles ▁of ▁these ▁treat ises ▁are : ▁ ▁De ▁an ima ▁intellect iva ▁( 1 2 7 0 ) ▁Qu a estion es ▁logical es ▁Qu a estion es ▁natur ales ▁De ▁a et ern itate ▁m und i ▁Qu a est io ▁u tr um ▁ha ec ▁sit ▁ver a : ▁H omo ▁est ▁animal ▁n ul lo ▁hom ine ▁exist ente ▁Im poss ib ilia ▁ ▁R ector ship ▁ ▁In ▁ 1 2 7 1 , ▁he ▁was ▁once ▁more ▁involved ▁in ▁a ▁party ▁struggle . ▁The ▁minor ity ▁among ▁the ▁" n ations " ▁chose ▁him ▁as ▁re ctor ▁in ▁opposition ▁to ▁the ▁elected ▁candidate , ▁A ub ri ▁de ▁R heim s . ▁For ▁three ▁years ▁the ▁str ife ▁continued , ▁and ▁was ▁probably ▁based ▁on ▁the ▁opposition ▁between ▁the ▁A ver ro ists , ▁S iger ▁and ▁Pierre ▁Dub ois , ▁and ▁the ▁more ▁orth odox ▁school men . ▁The ▁matter ▁was ▁settled ▁by ▁the