1. Clarification of Vaganov Data: 
records used by MBH98 were vag01 through vag61 excepting vag55

2. Series used by MBH98 but not listed in Supplementary Information(2): 
Unspecified Southwest U.S./Mexico Density series (Stahle Pers. Comm.)
Unspecified Southwest U.S./Mexico Latewood Width series (Stahle Pers. Comm.)

3. Series listed in Supplementary Information but not used by MBH98 (34):
These series met all the tests used for screening the ITRDB data (Mann et al.,
2000), except one, namely, that in 1997 we were either not able to ascertain how
these 34 series had been standardized by the original contributors or knew they
had been aggressively standardized, removing multidecadal to century-scale
fluctuations.

FRAN003
ITAL015
ITAL015X
SPAI026
SPAI047
NEWZ056
ARGE030
ARGE060
ARGE065
CHIL015
CHIL016
CHIL017
CHIL018
AK006
AK006X
CA070
CANA053
CANA053X
CANA096
CANA096x
CANA099
CANA106
CANA110
WA019
WA025
WA027
WA033
WA039
WA041
WA071
WA074
WA086
WA088
WA091