Many thanks for the link, Attila. One of the authors of Volume 25 was Nichols of "Ziegler-Nichols tuning" fame (q.v.) Bill Hawkins -----Original Message----- From: Attila Kinali Sent: Monday, February 09, 2015 4:14 AM And here the link to the pdf's in case anyone is looking: https://www.jlab.org/ir/MITSeries.html