If the sky is falling and meteorites mean an end to all of us, at least let them look like this. Meteorites–the chunks of debris from space that may have killed the dinosaurs and sometimes threaten ...
THE author of this little book has performed a notable feat, namely, to arrive within a reasonable distance of making a manual process comprehensible by means of the printed word. Nothing will ...
The Journal of Geology, Vol. 34, No. 3 (Apr. - May, 1926), pp. 235-247 (13 pages) In this paper the writer shows that the principle of the Abbe refractometer can be applied to modern petrographic ...
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