Malcolm Beck has talked about it. So has Howard Garrett, and many other authorities. There are books on the subject by Phil Callahan.
http://www.dirtdoctor.com/forum/viewtop ... amagnetism
The CGI meter is not readily available to my knowledge. Paramagnatism is not taught in universities and is not a widely accepted subject.
You can try the following link to see about purchasing a CGI meter:
More information from Pike Agri-Lab Supplies:
We manufacture and sell the PCSM designed by Dr. Phillip Callahan for
testing paramagnetism. It reads out in units of micro CGS. The price for the
meter is $425 plus shipping. We accept Visa and Mastercard, or to save on
shipping, you can send a check or money order for $425, and we will ship the
instrument postage paid in the continental US.
Pike Agri-Lab Supplies
154 Claybrook Rd.
PO Box 67
Jay, ME 04239