68 



PROCEEDINGS OF THE AMERICAN ACADEMY 



Date of Fall or Find. 



No. 



Found 1847. 

 Found 1847. 



Fell 1847. 



Feb. 25, 2J a. m. 



Fell 1847. 



July 14, 3] a. m. 



Weight 



in 

 Grams. 



177 



178 



179 



180 



706 



248 



203.5 



167.5 

 3.5 



30 



32 

 30 



13.5 



Description. 



Chester ville, Chester Co., South Caro- 

 lina, U. S. A. 



Seelasgen, Brandenburg, Prussia. 



Iron. Shows curious irregular gran- 

 ular structure on natural fracture. A 

 face polished and etched shows the 

 same granular structure, only with here 

 and there a Widmanst'attian plate. 

 [S7)iith Collection. FrorriC.U. Shepard.] 



* Etched slab. Crust on ends. 

 [Smith Collection. From C. U. Shepard.] 



Hartford, Linn Co., Iowa, U. S. A. 

 Stone. Light gray, full of iron 

 grains, and intersected with cracks 

 filled with crust. Dull black finely 

 pitted crust on three sides, all in differ- 

 ent degrees of fusion. One polished 

 face. [Smith Collection.'] 



* Irregular fragment, showing crust. 

 [In exchange from C. U. Shepard.'] 



* And other small fragments. 



Braunau, Hauptmannsdorf, Bohemia. 



Iron. Beautiful etched slab, show- 

 ing Neumann lines, some of which 

 are sufficiently coarse to show under a 

 lens all the features of Widmanst'at- 

 tian figures. Shows crust, and also 

 cubic cleavage. [S7nith Collection. 

 From W Shier.] 



Block showing cleavage. [Smith Col- 

 lection.] 



Block showing cleavage and crust. 

 An etched face of one of the cleavage 

 crystals is shown enlarged in Fig. 8. 

 At a appears the face of a twin cube and 

 the diagonals parallel to the intersec- 

 tion edge followed the same twin on an 

 adjacent face, showing that they were 

 twinning lines, and not lines of octahe- 

 dral or dodecahedral faces. The lines 

 appearing parallel to the cube edges 

 proved to belong to the simple cube.t 

 [Smith Collection.] 



Shows cleavage and crust. [Smith 

 Collection.] 



loc 



t Oliver W. 

 cit. 



Huntington "On the Crystalline Structure of Iron Meteorites," 



