Re: Chronology of Human Technology

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In reply to: Donald E Degraaf: "Re: Chronology of Human Technology"

Donald E Degraaf (degraafd@umich.edu)
Fri, 6 Jun 1997 10:08:32 -0400 (EDT)

Glenn:
With others I'm grateful for your massive effort in compiling and
describing a Chronology of Human Technology.

On 05 June you wrote:
"Animals do not build huts ..."

What is a beaver lodge? How does it differ from a human "hut"?

Don DeGraaf