We investigate the kinematics and spatial distribution of a sample of
302 nearby RR Lryae variable stars, with the goal of learning more
about the formation history and present-day structure of the galaxy.
We find that the kinematics change abruptly at [Fe/H] = -1.0.  Above
this value, the stars exhibit kinematic properties like those of other
tracers of the galaxy's thick disk, while below [Fe/H] = -1.3, halo
kinematics are observed.  The stars with -1.3 <= [Fe/H] <= -1.0 are a
mixture of these populations, though the fraction of thick disk RR
Lyrae stars with [Fe/H] <= -1.0 is significantly smaller than found
among red giant stars by other authors; we discuss several
possiblities for this discrepancy.  The RR Lryeas with [Fe/H] > -0.5
exhibit somewhat cooler kinematics and a flatter spatical distribution
than those of the thick disk, and may include some members of the old
thin disk population.  We find the kinematics of the halo RR Lyraes to
be uncorrelated with abundance over the range -2.2 <= [Fe/H] <= -1.0,
and interpret this as evidence that the motions and chemical
enrichment of gas in the early galaxy was characterized by a high
degree of randomization, consistent with fragment accretion pictures
of galaxy formation.  We argue that the samll number of thick disk
stars with [Fe/H] <= -1.0 can not be called upon to balance the net
kinematics of a retrograde-rotating halo to produce the slow prograde
rotations seen in this and other local samples; however, a hotter,
slowly-rotating, somewhat flattened second halo may be consistent with
kinematics both of local samples and of samples far from the galactic
plane.  We find the local density of halo RR Lyraes to be 11-15 kpc^3,
with a firm lower limit of 8 +/- 3 kpc^3.  This is larger than that
predicted from counts of faint RR Lyraes far from the plane; either
the flattening of the galactic halo is larger than c/a = 0.7, or a
two-component halo exists in which one component is quite flattened.
We derive an exponential scale height of 0.7 +0.5/-0.3 kpc and a
mid-plane density of 10 +/- 4 kpc^3 for the disk RR Lyraes with [Fe/H]
> -1.0.