In this portico, as Ferreiro rightly observes, we must distinguish the sculpture from the statuary. The former is rich and varied and its execution and composition are above praise, especially as seen in the sculpture of the capitals. But the age of iconography was only just dawning, and the statues show a sad want of proportion and are too monotonously alike to be really lifelike. The dramatic sentiment is here interpreted by means of contortions of the limbs and exaggerated facial movement. Yet among these hundred figures there are at least two statues that stand out as far superior and more lifelike than any of the others--namely, those of Christ and of Abraham, whose faces are very beautiful, and might take their place even beside those of the _Pórtico de Gloria_, with which we shall occupy ourselves later on. The tympana of this façade exhibit certain peculiarities which may be said to be specialities of Gallegan architecture. In other schools the tympanum is divided into two parts, but here it is not divided.[139] The tympanum of each gate rests upon the heads of monsters sculptured with remarkable energy. Standing with our backs to this façade, we have to our right the offices of the cathedral chapter and the treasury with its plateresque or filigree stone-work of the Renaissance style, and in the corner where the treasury runs into or joins the façade is the gigantic and much-talked-of Shell of St. James, which supports almost the entire weight of the wide treasury staircase, and is considered a marvel of engineering skill. Above the southern end of the treasury building rises one of the original towers, still in good preservation. It reminds one somewhat of a Japanese tower, and contrasts strangely with the more modern ones. There is a tradition among the townspeople that a lady left a large sum of money to be spent in honour of this tower. Priests in gorgeous mitres purchased with this money were to make annual processions beneath its shadow scattering the fumes of incense and chanting. There is a couplet composed by some local wag, which alludes to the mitres and incense somewhat mockingly.