Smithsonian Report. l'>50. — Brown 



Section of the Willamette. Oreg . Meteorite 

 Largest (14,175 kti.) indixidiial iron nictcoriti' found in the I'nitcd State 



coni{)os('d almost ciitirciy of metallic' iron and nickel, t\\ 

 of the easily condensable elements (Class I). 



It is 



o of the most abundant 



JUPITER. THE LARGEST PLANET 



It is composed almost entirely of hydrogen and helium, the most abundant ele 

 ments in the universe. (Courtesy Yerkes Ol)servatory and Hayden Plane- 

 tarium.) 



