possible as it appeared in Becket's time. The fire came, however, and
the choir was to a great extent rebuilt, but fortunately the chapels
were only slightly affected.

After careful inquiry the monastery decided to employ William of Sens
as architect for the reconstruction, and the excellent work of this
clever Norman craftsman lives to-day in the eastern portion of the
cathedral church. He set to work soon after the fire; but, after four
years of labour, was so much injured by a fall from the scaffolding
that he was obliged to abandon his unfinished work and return to his
native Normandy. Upon an Englishman named William devolved the task of
completing the work.

Either following the Frenchman's plans or adapting them to his own
ideas, he finished the eastern parts of the church as they stand
to-day in the year 1184. To one or both of these architects is due the
unusual device of narrowing the choir to avoid altering the site of
the Trinity Chapel of Becket's time. When the reconstruction of
Conrad's Norman choir began, the Gothic style was just beginning to
appear--an incipient tendency towards a pointed arch here and there
which grew into what is called the Transitional Period; and to this
style--in between the Romanesque semicircular arch, with its
accompanying massiveness, and the first style of Gothic known as Early
English, distinguished by the pointed arch, detached pillars
decorating the triforium and clerestory, and elaborate mouldings and
capitals--the choir belongs.

When the whole of the east end of the cathedral was finished, nearly
two centuries elapsed before any further change took place beyond the
beginning of the chapter-house. At the commencement of that period,