Hi all,
 
  Dr. John Lahr has placed the subject document on his web site, with  my 
urging and Dr Wielandt's cooperation. This is a chapter of the new Manual of  
Observatory Practice edited by Peter Bormann and Erik Bergmann, and written by  
Prof. Erhard Wielandt, Institute of Geophysics, University of Stuttgart. 

This document is one every serious amateur should study and have  in their 
files.
 
 You can view it by going to:
 
     _http://jclahr.com/science/psn/wielandt/man2001.html_ 
(http://jclahr.com/science/psn/wielandt/man2001.html) 
 
 From there, on the first HTML page, there are links to view or  download in 
MSWord format,
 
     _http://jclahr.com/science/psn/wielandt/NMSOP_06.doc_ 
(http://jclahr.com/science/psn/wielandt/NMSOP_06.doc) 
 
or to download as a zip file containing all the HTML pages of the  document,

_http://jclahr.com/science/psn/wielandt/Seismic%20Sensors.zip_ 
(http://jclahr.com/science/psn/wielandt/Seismic%20Sensors.zip) 
 
  This chapter was written for professional seismographers, but there  is 
much there for all amateurs as well.
 
Regards,
 
Bob





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Hi all,
 
  Dr. John Lahr has placed the subject document on his web site, w=
ith=20
my urging and Dr Wielandt's cooperation. This is a chapter of the new Manual=
 of=20
Observatory Practice edited by Peter Bormann and Erik Bergmann, and written=20=
by=20
Prof. Erhard Wielandt, Institute of Geophysics, University of Stuttgart. 

 This document is one every serious amateur should study and h=
ave=20
in their files.
 
 You can view it by going to:
 
     http://jclahr.c=
om/science/psn/wielandt/man2001.html
 
 From there, on the first HTML page, there are links to view or=20
download in MSWord format,
 
     http://jclahr.c=
om/science/psn/wielandt/NMSOP_06.doc
 
or to download as a zip file containing all the HTML pages of the=20
document,

     http:/=
/jclahr.com/science/psn/wielandt/Seismic%20Sensors.zip
 
  This chapter was written for professional seismographers, but th=
ere=20
is much there for all amateurs as well.
 
Regards,
 
Bob