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Eye of beholder. (Letters).


If the stones in "Stone Age signs of complexity" (SN: 1/19/02, p. 40) simply were used for grinding ocher ocher (ō`kər), mixture of varying proportions of iron oxide and clay, used as a pigment. It occurs naturally as yellow ocher (yellow or yellow-brown in color), the iron oxide being limonite, or as red ocher, the iron oxide being hematite.  to make powder, would not the grinder Grinder

A slang term for a person who works in the investment industry and makes small amounts of money at a time on small investments, over and over again.

Notes:
 rough up the surface to make it a better grindstone grindstone

or grind common metaphor for industriousness. [Pop. Culture: Misc.]

See : Industriousness
? The marks may be nothing more than primitive knurls. Rather than art, this looks like a tool to me, not different in principle from flaked flint.

How does that interpretation, which doesn't involve symbolism, push back abstract thought?

W.W. VARNEDOE JR., HUNTSVILLE, ALA.
COPYRIGHT 2002 Science Service, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2002, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Author:Varnedoe, W.W., Jr.
Publication:Science News
Date:Mar 30, 2002
Words:82
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