PLATE V. 



Allegan meteorite. All greatly magftiified. 

 Figs. I and 2. Clear colorless olivines in groundmass. 



3. Radiating enstatite with clear olivines and iron (black). 



4 and 5. Fragmental chondrules of nearly amorphous enstatite. 



6. Chondrule composed of olivines imperfectly secreted from a black 



glass. The clear colorless portions in close contact represent 

 olivines, the black areas, iron. 



7. Imperfectly crystalline enstatite chondrule in contact with a frag- 



ment of a nearly amorphous one of the same mineral nature. 



8. Iron, drawn to show the very irregular nature of the masses. 



9. Nearly amorphous enstatite chondrule in contact with metallic iron. 



(66) 



