444 W. M. Footc— Shower of Meteoric Stones, Arizona. 



in the engraving, are comparatively large. The back of the 

 stone (fig. 7) illustrates well the relatively quiet fusion of all 

 of the similarly marked masses. In these the overflow of the 

 molten silicates behind the rear edges is shown sometimes in a 

 fringe-like scoriaceous "wash" or thicker crust. Otherwise 



Fig. 7. 



Fig. 7. Back of mass shown in fig. 6 (.reconstructed), x 0"64 diameters. 



the back plainly appears as an area of lesser fusional disturb- 

 ance than the front. 



Several of these specimens are superficially identical with 

 that of Gopalpur, described by Tschermak, as having a rounded 

 front covered with a finely striped and radiately channeled 

 crust, with elongated pit-like depressions, becoming shallower 

 as they recede from the radiant point. Gopalpur's front crust 

 overlaps the back in a well-defined and sometimes fringed 

 border, becoming verrucose and enclosing unaltered grains of 



