OF ARTS AND SCIENCES. 



|9 



Date of Fall or Find. 



Fell 1859. 



Mar. 28, 4 P. M. 



No. 



249 



Fell 1859. 



April 4. 



Fell 1859. 



May 1, 3 P. M. 



Fell 1S59. 



Aug. 11. 



Described 1860. 



Known 1860. 



250 

 251 

 252 



253 



Weight 



in 

 Grams. 



85 



254 



71 



60.5 

 57.5 



1,300 



Description. 



Harrison County, Indiana, U. S. A. 

 Stone. Nearly a complete individ- 

 ual, with dull brown, finely pitted crust. 

 Fracture appears light gray, set through 

 with coarse dark gray fragments, and 

 specks of iron. [Smith Collection.] 



Mexico, District of Pampanga, Luzon, 

 Philippine Islands. 



Bueste, near Pau, Basses-Pyrene'es, 

 France. 



Bethlehem, near Albany, New York, 

 U. S. A. 



Marshall County, Kentucky, U. S. A. 



Iron. Thin slab, -with crust on edges, 

 showing good octahedral cleavage. 

 Well-marked Widmanstattian figures 

 are brought out with some difficulty on 

 the etched surface. [Smith Collection.] 



One etched face. The rest crust. 

 [Smith Collection.] 



* Polished slab. Crust on edges. 

 [Smith Collection.] 



Coopertown, Robertson Co., Ten- 

 nessee, U. S. A. 



Iron. Two faces at right angles, 

 etched, showing beautiful Widman- 

 stattian figures. The rest covered with 

 crust, a natural octahedral 

 appearing in one place. 



Fig. 11 shows of original size the two 

 etched faces, the larger one being paral- 

 lel to an octahedral face determined by 

 cleavage, and the other being at right 

 angles. Most of the plates, forming 

 in section equilateral triangles, are par- 

 allel to octahedral faces ; but the plates 

 marked b, and those parallel to them, 

 bisect the octahedral angles and must 

 be parallel to a dodecahedron. More- 

 over, the plates marked a, which are 

 parallel to a lateral edge of the octahe- 

 dron, when followed on to the face at 

 right angles to the first continue to be 

 parallel to the lateral edge, and there- 

 fore cannot be octahedral plates, and 

 since they are parallel to a principal 

 section of the octahedron they must be 





cleavage 



