M. de la Sauvagère. The collection of all these data constitutes what is
called _Celtic Archæology_, the mysteries of which we shall presently
disclose.

A stone placed on another one is called a "dolmen," whether it be
horizontal or perpendicular. A group of upright stones covered by
succeeding flat stones, and forming a series of dolmens, is a "fairy
grotto," a "fairy rock," a "devil's stable," or a "giant's palace"; for,
like the people who serve the same wine under different labels, the
Celto-maniacs, who had almost nothing to offer, decorated the same
things with various names. When these stones form an ellipse, and have
no head-covering, one must say: There is a "cromlech"; when one
perceives a stone laid horizontally upon two upright stones, one is
confronted by a "lichaven" or a "trilithe." Often two enormous rocks are
put one on top of the other, and touch only at one point, and we read
that "they are balanced in such a way that the wind alone is sufficient
to make the upper rock sway perceptibly," an assertion which I do not
dispute, although I am rather suspicious of the Celtic wind, and
although these swaying rocks have always remained unshaken in spite of
the fierce kicks I was artless enough to give them; they are called
"rolling or rolled stones," "turned or transported stones," "stones that
dance or dancing stones," "stones that twist or twisting stones." You
must still learn what a _pierre fichade_, a _pierre fiche_, a _pierre
fixée_ are, and what is meant by a _haute borne_, a _pierre latte_ and a
_pierre lait_; in what a _pierre fonte_ differs from a _pierre fiette_,
and what connection there is between a _chaire à diable_ and a _pierre
droite_; then you will be as wise as ever were Pelloutier, Déric, Latour
d'Auvergne, Penhoet and others, not forgetting Mahé and Fréminville.
Now, all this means a _pulvan_, also called a _men-hir_, and designates
nothing more than a stone of greater or lesser size, placed by itself in