  We report on the search for Rare Particles (Magnetic Monopoles, Nuclearites,
Weakly Interacting Massive Particles and Lightly Ionizing Particles) with the
MACRO detector. For magnetic monopoles (the main goal of the experiment) our
limit is about 0.4 times the Parker bound for monopole velocities between
10^{-4} and 10^{-1}.
