n6 Field Columbian Museum — Geology, Vol. III. 



cured by Professor Ward was a single individual about 10 x 15 cm. 

 in size. When received by the writer, however, the mass had been 

 broken in two parts. The smaller of these parts had been sawed in 

 two, and one surface of one polished, while the other part was missing 

 altogether. It is impossible, therefore, to state what the exact orig- 

 inal form and weight of the mass was, but it is not probable that the 

 missing part exceeded one pound (453 grams) in weight. The total 

 weight of the parts in hand amounted to 6% pounds (2.8 kgs.). Con- 

 tinuation of the contours of the two portions in hand gives a pretty ac- 

 curate idea of the original form, the space probably occupied by the 

 missing portion being indicated in Plate XXXVI. The original 

 form of the mass was evidently that of a short cylinder about six inches 

 (15 cm.) in diameter and four inches (10 cm.) in height. The surface 

 of one end of the cylinder tends to be convex and that of the other 

 concave. These differences of curvature together with distinctions 

 in crust and pittings show pretty conclusively that one was the front 

 and the other the rear side of the meteorite in falling. On the front 

 and rear surfaces of the meteorite the primary crust is pretty uni- 

 formly present. On the sides, however, it appears only at intervals, 

 indicating that during the fall of the meteorite to the earth, or since 

 its arrival, portions have been broken off. How much has been sepa- 

 rated in this way it is obviously impossible to determine, but it is quite 

 probable that at one time the mass had a more disk-like shape than at 

 present. The surface of the front side of the meteorite is very smooth 

 and varnish -like. There are no well-marked pits to be seen, the near- 

 est approach to them being three or four shallow, irregular depressions 

 about one inch (2.5 cm.) in diameter. The color of this surface is in 

 general a dull hematite-red, shading to darker about the edges of the 

 meteorite. The smoothness and color give an appearance much as if 

 the surface had been coated with a red varnish. The most remarkable 

 feature of this front surface is a system of cracks or fissures which trans- 

 verse it. These cracks appear to be quite independent of the contour 

 of the surface. In general they may be said to mark triangular areas, 

 the sides of the triangles being about two inches (5 cm.) in length. 

 In width the fissures vary, but rarely exceed one millimeter. As 

 shown by sections and by pushing a wire into them they penetrate 

 quite deeply into the mass of the meteorite, some being traceable 

 an inch (2.5 cm.) below the surface. Their extension downward is 

 usually in a slanting direction and not perpendicularly. Sections of 

 the meteorite also show cracks running parallel with the surface at 

 a distance of about one-half inch (1 cm.) below it, and others extend 

 inward from the side and rear of the meteorite. The prominent 



