Table 1: Pairwise peculiar velocity dispersion ( ${\rm km~s^{-1})}$ .
Survey $\sigma_{12}$ $\Delta\sigma_{12}$ Reference

CfA1 340 40 Davis & Peebles (1983)

IRAS 1.2Jy 317 40 Fisher et al. (1994)

CfA2+SSRS 540 180 Marzke et al. (1995)

LCRS 452 60 Lin et al. (1995)

PPRS 345 95 Guzzo et al. (1997)

TNRS 326 67 Small et al. (1999)

Duhram/UKST GRS 416 36 Ratcliffe et al. (1998)

CfA2+SSRS 295 99 Marzke et al. (1995)

LCRS 363 44 Landy et al. (1998)

LCRS 570 80 Jing et al. (1998)

LCRS 510 70 Jing & Borner (2001)

2dF 331 19 Landy (2002)

SDSS 357 17 Landy (2002)

**Table 1:** Pairwise peculiar velocity dispersion ( ${\rm km~s^{-1})}$ .
Survey	$\sigma_{12}$	$\Delta\sigma_{12}$	Reference
CfA1	340	40	Davis & Peebles (1983)
IRAS 1.2Jy	317	40	Fisher et al. (1994)
CfA2+SSRS	540	180	Marzke et al. (1995)
LCRS	452	60	Lin et al. (1995)
PPRS	345	95	Guzzo et al. (1997)
TNRS	326	67	Small et al. (1999)
Duhram/UKST GRS	416	36	Ratcliffe et al. (1998)
CfA2+SSRS	295	99	Marzke et al. (1995)
LCRS	363	44	Landy et al. (1998)
LCRS	570	80	Jing et al. (1998)
LCRS	510	70	Jing & Borner (2001)
2dF	331	19	Landy (2002)
SDSS	357	17	Landy (2002)

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