▁of ▁the ▁Old ▁Testament , ▁the ▁Am iat inus ▁ps al ms ▁text ▁is ▁commonly ▁considered ▁an ▁inferior ▁witness ▁of ▁Jer ome ' s ▁Vers io ▁ju xt a ▁Heb ra icum ; ▁the ▁presence ▁of ▁the ▁' Col um ba ' ▁series ▁of ▁ps alm ▁head ings , ▁also ▁found ▁in ▁the ▁C ath ach ▁of ▁St . ▁Col um ba , ▁demonstr ates ▁that ▁an ▁Irish ▁ps alter ▁must ▁have ▁been ▁its ▁source ; ▁but ▁the ▁text ▁diff ers ▁in ▁many ▁places ▁from ▁the ▁best ▁Irish ▁manuscript s . ▁The ▁New ▁Testament ▁is ▁preced ed ▁by ▁the ▁Ep ist ula ▁Hier onym i ▁ad ▁Dam as um , ▁Pro leg omena ▁to ▁the ▁four ▁G osp els . ▁ ▁The ▁Code x ▁Am iat inus ▁qual ifies ▁as ▁an ▁ill umin ated ▁manuscript ▁as ▁it ▁has ▁some ▁decor ation ▁including ▁two ▁full - page ▁mini atures , ▁but ▁these ▁show ▁little ▁sign ▁of ▁the ▁usual ▁ins ular ▁style ▁of ▁North umb rian ▁art ▁and ▁are ▁clearly ▁copied ▁from ▁Late ▁Ant ique ▁original s . ▁It ▁contains ▁ 1 , 0 4 0 ▁leaves ▁of ▁strong , ▁smooth ▁v ell um , ▁fresh - looking ▁today ▁despite ▁their ▁great ▁anti qu ity , ▁arranged ▁in ▁qu ires ▁of ▁four ▁sheets , ▁or ▁qu atern ions . ▁It ▁is ▁written ▁in ▁un cial ▁characters , ▁large , ▁clear , ▁regular , ▁and ▁beautiful , ▁two ▁columns ▁to ▁a ▁page , ▁and ▁ 4 3 ▁or ▁ 4 4 ▁lines ▁to ▁a ▁column .