I have just recently picked up what I believe to be a seismograph made by Hilger & Watts (SG 416). However, it has no manual and I am keen to locate documentation (or at the very least, its detection characteristics). Can anyone on this list help (or provide a good lead)? Many thanks, Doug Welch _____________________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>