1879. ] The Origin of the Domestic Animals. 753 
land, in Belgium and in England, in the deposits of this epoch, 
true works of art. These are engravings and sculptures repre- 
senting in a very natural manner, but very true and well studied, 
representations of animals. 
But with the Robenhausian invasion this first start in art com- 
pletely disappeared. We see no more ornamentation, or only 
rudiments exist, as in certain dolmens of the Mcebihan. These con- 
sist simply of fantastic combinations of different lines represent- 
ing no living object. In the region whence the Robenhausian 
migration proceeded, we see certain peoples, as in Persia, who in 
decoration, still in our time, make only combinations of lines. 
_ The first monuments, dolmens and menhirs, were brought to 
us by the Robenhausian migration. We find these monuments 
at the north and south of the region whence has started this 
migration. We have discovered dolmens in Palestine, especially 
among the Moabites; we have found them still more to the north 
of Asia Minor. On the other hand, it is well known that dol- 
mens are found in the Caucasus, and that they pass into the 
Crimea.. 
Finally, at what date has the migration which we have just 
studied, taken place? Certainly it is very rash to seek the date, 
even approximate, of events so distant. However, it seems to 
me well to divert our researches in this direction; so with- 
out according them much importance, I proceed, finally, to 
present some considerations in this respect. It seems to me 
that we can affirm that the Rebenhausian migration was ante- 
rior to the great Egyptian civilization. Indeed, the men com- 
prising this migration did not know, for a long time, indeed a 
very long time, anything more than the use of stone. The 
Egyptian civilization, from the first dynasty, was in possession of 
metals. We submit that there were no relations between the 
Egyptians and the countries whence the emigrants departed, but 
it was not long before this relation was to be established, since 
from the fifth and the sixth dynasty Egypt had borrowed much 
from Asia, notably that which relates to the working of metals. 
The populations which invaded Europe had, therefore, already 
quitted Asia at this epoch. 
