PROFESSOR EINSTEIN has propounded one of the most revolutionary scientific theories in the history of the world—the theory that space is not rectilinear but curved, and that we therefore live not in an infinite universe, but in a universe which is finite but folded in upon itself in such a way that we have an illusion of infinity—that is, instead of going in a straight line, if we traveled out indefinitely through space, we should actually proceed in a curve which would ultimately bring us back upon ourselves. The scientific world is now in suspense as to the outcome of the experiments which will verify or disprove this theory. It has already been established that the planet Mercury doss not move according to the Newtonian laws, but in such a way as to corroborate Einstein's theory; and observations based on the eclipse of 1919 seemed further to justify it. The results of the calculations based on the eclipse of last September have not yet been made public, and the third cardinal experiment, which has to do with the spectrum of certain elements in the sun. is still in doubt; but if these conclusions bear out the others, the evidence in favor of Einstein's revolutionary hypothesis will have become overwhelmingly convincing