of this blue with the yellow ochre. The white was made of
powdered egg shells, and the black is lamp black. From the fact that
the colouring matter has in no case penetrated the prepared surface,
but adheres to it, we may argue finally that the process in which
white of egg is the chief constituent was used to lay on the colours.

Besides the heart of Richard Coeur de Lion, the Cathedral of Rouen
contains another relic of the Norman days in the tomb of that Empress
Matilda, who as Countess of Anjou, gave Henry Plantagenet to the
throne of England, and died in 1167. Her rich sepulchre at Bec was
pillaged by the English in 1421, and the restored monument was
desecrated in 1793, but in 1846 the original casket was discovered by
the fortunate stroke of a pickaxe, and now rests in the Cathedral. In
1124 the shrine containing the body of the famous St. Romain was
opened in the presence of the King and Queen of England, and
fifty-four years afterwards, as the decorations made for it by
Guillaume Bonne Ame had been taken for alms to the poor, Archbishop
Rotrou made a new and more magnificent covering for the venerated
relics that play so large a part in the story of the town. This new
and Norman shrine it must have been which was carried by the two
prisoners, delivered by the Privilege of the Fierte in 1194, but it
has long ago been replaced by later work.

[Illustration: CORBEL FROM THE OLD CHURCH OF ST. PAUL]

There is but one more religious monument, the last building I can show
you in this chapter, that has remained from these centuries until now.
Walk along the riverside eastwards, and as the waters flow from Paris
towards you on your right, stop where the chalk cliffs of St.
Catherine's Mount begin to slope downwards from the left hand of the
road. Just between it and the river is the Church of St. Paul, which
stands where the first Christian altar replaced the Temple of Adonis,
and watched with St. Gervais and St. Godard the infant town of
Rothomagus arise.

It was no doubt at the time when St. Romain himself finally destroyed
the Tarasque of idolatry that this first church arose above the ruins
of the pagan shrine. But of Roman or Merovingian structures St. Paul
can show no trace. It has, however, an extremely interesting early
Norman apse, which is different to everything else in Rouen, and older
than any other building, save St. Mellon's crypt at St. Gervais. By
going round the outside you can see three apses, an