116 FIELD CoLUMBIAN MusEuM — GEoLocGy, 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 61% 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-iike. 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 
