We have searched for strange matter particles, so-called strangelets,
in Pb-Pb interactions at p(lab) = 157.7 GeV/c per nucleon. The NA52 ap
paratus is also ideally suited to measure production yields and rapidi
ty distributions of pi(+/-), K-+/- p, (p) over bar, d, (d) over bar,..
. near 0 degrees production angle. Some preliminary results are shown.