Hi, Recently I purchased a complete collection of the "Amateur
Scientist" articles on CD ROM. That's from 1920 to 2000. It 
a has all the articles on seismology. Ever read the article's
April 1952, June 1953 ( a goodie), July 1957, Nov. 1973, Sept. 1975,
July 1979, April 1996 just look under earth sciences. 

If you are interested :    http://www.tinkersguild.com/

Fun for all at a cheap price.

Cheers

Arie
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