380 K. S. Howard— Elm Creel Aerolite. 



found in Kansas that at first there was a question as to whether 

 this one constituted a distinct fall or if it were merely one 

 of a shower. An examination of a polished surface, however, 

 showed that it is entirely different from other Kansas stones. 

 Elm Creek, a branch of the Marais des Cygnes river, flows 

 about three-fourths of a mile from where the stone was found, 

 and as one meteorite has already been named after Admire 

 this one will be called the Elm Creek aerolite. 



Micro-section, x 45 

 By W. Harold Torolmson, Germantown, Pa. 



Its weight is 7075 grams. It measures approximately 

 22 cm Xl9 cm Xl2 cm , its general shape being shown in the accom- 

 panying photograph. As wall be seen the stone is highly 

 oriented, the pittings radiating from a point shown in the pho- 

 tograph as being a little below the center. Any markings that 

 may have been on the reverse side have been obliterated by 

 oxidation. The stone is very firm and excepting where a few 

 small chips nave scaled off shows no signs of fracture. 



Dr. Geo. P. Merrill of the National Museum has made a micro- 

 scopic examination of the aerolite and describes it as follows : 

 " The stone on a polished surface is of a dark gray, nearly 

 black color, thickly studded with metallic iron and with numer- 

 ous indistinct chondrules which break in large part with the 

 groundmass. Under the microscope the silicate portion is 

 found to consist essentially of olivine and enstatite with a 

 twinned monoclinic pyroxene. The olivine occurs in the usual 

 clear, colorless forms quite free from enclosures ; in minute 



