390 
MARTIN P. NILSSON 

discussion of the question as to what is to be understood by »races. (For my 
views as to this point see my above-cited paper in Ymer 1912, pp. 465  sqq). 
There are races with varying degrees of racial differences. I wish only to point 
out that the above-mentioned theory may not be inconsistent with the view that 
is advanced here. The signs by which these three races are recognized are purely 
physical. Here it is in the first place a question of psychical differences. It may 
be that the physical properties have persisted on the whole but that the psychical 
ones have changed in the formation of the new races which have developed from 
the blending of the races in Europe. 
# Cp. the dates given above (pp. 384 sqq.) for the provincial origin of emperors 
and senators. 
