ARRANGEMENT OF THE COLLECTION, 
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The collection of meteorites occupies Hall 62 of the West Annex 
of the Museum. The number and disposition of the cases in the 
hall is shown by the accompanying plan. The smaller specimens 
are arranged in the chronological order of their fall or find, in Cases 
1-4 inclusive. 
They are grouped for convenience, as shown in the Catalogue, 
into the three classes of @eroszderites, (meteoric irons) aerosiderolites, 
(meteoric iron-stones) and aerodites (meteoric stones.) The aerosid- 
erites occupy Cases 1 and 2, the aerosiderolites part of Case 3, and 
the aerolites, the remainder of Case 3 and Case 4. 
The place of fall or find of each specimen, usually constituting 
the zame of the meteorite, the date of fall or find and the weight 
of each specimen are shown by its label. 
Cases 5 and 6 contain specimens weighing respectively 466 and 
345 pounds, of the Kiowa County, Kansas, fall, together with smaller 
individuals and sections of others of the same fall. In Case 8 are 
placed a large mass and several hundred smaller fragments of the 
Phillips County, Kansas, meteorite, the aggregate weight of which 
is 1184% pounds. 
On the pedestal numbered 12, in the center. of the hall, are sup- 
ported two large masses weighing respectively 1013 and 265 pounds, 
of the Cafion Diablo, Arizona, meteorite. See Plate III, Fig. 3. 
The total number of falls or finds represented by these specimens 
is 180 and their aggregate weight 4,720.6 pounds, (2,140.4 kilograms). 
Cases 7 and 1o are devoted to casts which show the form and 
size of some of the more notable meteorites, together with speci- 
mens of pseudo-meteorites, of the Ovifak iron and of other terrestrial 
minerals which approximate in composition to those of meteoric 
origin. 
Pedestals 9 and 11 bear full-sized models of the Chupaderos and 
San Gregorio, Mexico, meteorites, which illustrate the size of these, 
the largest known bodies of their class. 
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