Page:Popular Science Monthly Volume 64.djvu/357

Rh up and down the great western mountain range. It is possible that investigation will show that greater gravitational force is exerted at these points, and that thus the number of meteorites drawn in is there

increased, or, again, mountains may present actual mechanical obstacles which stop and accumulate meteorites. Whether either of these hypotheses has any foundation in fact, however, is not known as yet. There are again remarkable differences in the kinds of meteorites