table1: tab.sf.fundamentals
this table contains fundamental mode frequencies for 0s25 to 0s300.
the columns of numbers are (SW stand for surface wave study,
                            MD for mode study)

smodes    : reference value (mHz),error (microHz)
mont      : SW, Montagner&Tanimoto, 1990
wong      : SW, Wong, 1989
L&M       : SW, Laske&Masters, 1996
ET&L      : SW, Ekstrom, Tromp&Larson, 1997
T&W       : SW, Trampert&Woodhouse, 1995
RR&M      : MD, Roult, Romanowicz and Montagner, 1990, error
M&L + S&M : MD, Masters&Laske, 1997; Smith&Masters, 1989, error
PREM      : anisotropic PREM model, error


table2: taba.sf.fundamentals
this table contains fundamental mode frequencies for 0s2 to 0s24.
(all results are from modes studies (mHz) and 
 given with error bars (microHz))

prem      : anisotropic PREM model, error
smodes    : reference value
H&T       : He&Tromp, 1996
Um        : Um, unpublished 
R&R       : Resovsky&Ritzwoller, 1998
M&W       : Masters&Widmer, 1995
RMG86     : Ritzwoller, Masters&Gilbert, 1986
Li        : Li, Giardini&Woodhouse, 1991; Li, 1992
RR&M      : Roult, Romanowicz&Montagner, 1990