PLATE IV. 



Aerosiderolites, Kiowa Co., Kansas. 

 Fig. 1. Section showing the sponge-like structure of these masses, the cavities of 



the metallic matrix being filled with chrysolite. One-fourth natural size. 

 Fig. 2. Single individual weighing 465 pounds. A Pallasite. 

 Fig. 3. Four individuals. The largest one, known, on account of its shape, as the 



"moon meteorite, " weighs 344^ pounds. It is wholly metallic as is also 



the central mass below it. The other individuals contain a little chrysolite. 



