Page:The American journal of science, series 3, volume 49.djvu/73

Rh H. A. Ward — Notice of the Plymouth Meteorite. 55

Its surface is deeply eroded by oxidization, so that, although sound and free from scales, it shows no signs of an original crust. .The characteristic pittings of meteorites are also by the same cause rendered somewhat feeble, although still quite clearly visible. We have cut a number of thin slices from the mass. These etched in dilute nitric acid give very clear Wid- manstatten figures, which are well shown in the accompanying cut (fig. 2.) There are, further, several small nodules of troilite.

2.

A careful analysis of this iron has been very kindly made for me by Mr. J. M. Davison of the Reynolds Laboratory of the University of Rochester, and I give the same below.

Analysis of Plymcuth Meteorite.

Fe 88-67

NL-. 8*55

Co 0-66

Cu __ 0-24

P 1-25

Graphite 0*11

IS _ 0-07

99-55

This iron, herein briefly noticed, is interesting in many ways, and it is much to be regretted that the large mass, of which the record seems to me to be entirely reliable, cannot be re-dis- covered.