object. The hands are either right or left, and, in some cases,
both hands seem to have been stencilled at once. Sometimes the
whole arm and hand are stencilled together, and in one of the
photographs a boomerang is shown. The age of these stencils is
not known. They were first discovered at Wolgan Gap about sixty
years ago, but others have been known for a longer time, for
instance, those at Greenwich, Parametta River, near Sydney.

The significance of these stencillings has been the subject of
some controversy. The natives may have been induced to make
them as boys carve their names on benches or even rocks. The
materials for making the stencillings were present and, the
example once having been set, others would emulate it. It is
interesting that similar stencillings of the hands were made by
cave men on the walls of some of the European caves, as, for
instance, those of Aurignac in southern France. Evidently
spatter work is no modern pastime.



THE PROGRESS OF SCIENCE

SUBSTITUTES FOR WAR

THIS war, beyond measure disastrous to civilization, is a trial
also of our democracy. We may hope that it is an old-world war
and an old-men's war, repugnant to the genius of our newer
life. The statements of some of our public men and the contents
of some of our newspapers can not be read without
discouragement. But it is also true that there has perhaps not