The three portals I alluded to in my last lecture are the work of the unfinancial artist;[51] the range of pillars, etc., down the nave, of the not inartistic man of business. Both are noble works. Trumpington’s works are bold and massive, and his details good, though simple; but for beauty of design we must award the palm to his less thrifty but more _spirituel_ predecessor: indeed, I know few works equal in design to what he commenced; and had he been able to carry it out, this façade might have vied with that of Wells. Unhappily there are, externally, little remains of the work of either of the abbots. Late in the century the choir, also, was in great measure rebuilt. Its character is less forcible than the earlier works, yet exceedingly beautiful. The eastern chapels--which opened by five arches into the church--were at the same time commenced, but only in part carried out, the Lady Chapel having been stopped short after rising a few feet from the ground, and the chapels which opened from the choir having suffered considerable alterations from their first design. They are now virtually in ruins, but their details are of exquisite beauty. The windows have tracery of very high merit, and the wall arcading--now almost entirely destroyed--has been quite charming. These works form a continuous series, from the last days of the twelfth to the end of the thirteenth century, and are admirable illustrations of the architecture of this great period. I will dip seven years into the succeeding century to mention the exquisite fragments of the substructure which carried the shrine of the protomartyr. They have recently been exhumed in opening a walled-up arch. They are of Purbeck marble, and, in spite of the stubborn material, are most wonderfully carved, the leaves being so much undercut as in places to be quite detached.[52] This venerable church possesses claims upon the student residing in London second only to those of our own Abbey of Westminster. I recommend it to your special and diligent study, and you will, I am sure, never blame me for my advice.[53] On some of your visits there, pray go on to Dunstable, where you will find a noble priory church, in the later Norman style, whose western portal was probably in its day the finest in the kingdom; but owing to the friable clunch of which it was constructed, has lost the greater part of its decorations. The west front contains excellent work of the thirteenth century. It is a great architectural enigma, which I believe I have solved, but I will not spoil it for you by explaining my conjectures.