/énsv . des Scïenc //,r/ S^Serie 



/),>/ 7\,/,i ///' /'/ 



Riocreucc <M 



farcAcm/ùt /><>A///to/y>Aa , /.._/',<,/,?/<>//,/ <•<>///'<■</ ,<;„,/,,. _'/à/-</,»/,/ ( r A ,//><>/>//<///,/ i 



W.MétrwruL ///y>'~ r.det Ifoyers, Si 



