Using Winquake, particularly on regional events, the vertical and 
broadside Lehman show a peak well ahead of P which it designates as Pis. 
I can't find a reference to it. Is this some old designation for a core 
or mantle reflection? 
__________________________________________________________

Public Seismic Network Mailing List (PSNLIST)

To leave this list email PSNLIST-REQUEST@.............. with 
the body of the message (first line only): unsubscribe
See http://www.seismicnet.com/maillist.html for more information.