Preliminary Note on the Meteorites in the Bloevifontein Museum. 217 
A section was made across the meteorite, and the exposed surfaces 
pohshed. When this was done a number of veins of a much more 
lustrous metal were seen embedded in the mass of iron, and standing 
out clearly on account of their brightness. One surface was not further 
treated, and the other " etched" with dilute nitric acid. 
These veins are not uniform, but can be seen with a moderate 
magnifying power to consist of a metallic network enclosing black 
particles. Fig. 8 shows the surface polished, but not etched. Fig. 9 
Fig. 9. 21 cm. across longest diameter. 
shows the surface after etching, and about f of the actual size. The 
area of the polished surface is about 230 sq. cm. In this Fig. the 
Widmanstatten lines are seen developed, and also the network of the 
veins. Fig. 9 in Plate VI. shows the lines after etching with stronger 
acid. 
Fig. 10 shows a portion of the surface under a magnificature of 5 
diameters. The remarkable triangular arrangement of the interlocking 
crystals is well shown here ; the details of this will be referred to later. 
The black matter running through the network of the veins is also clearly 
