IK) W. H. HOBBS METEORITE FROM A LOOM A, WISCONSIN 



illustrates corresponding conditions in the case of a top. If the point of 

 a top l)e hollowed out, as shown in the figure, and then s[)un upon a 

 pointed standard, the result will be a continuous slowing up of the pre- 

 cession and the fall of the top. The conditions are just reversed from 

 those shown in figure 5, A, in which the precession is hastened by the 

 rolling of the blunt point on the floor. 



