We consider N = 2 superconformal theories defined on a 3 + 1 dimensional hy
perplane intersection of two sets of M5 branes. These theories have (tensio
nless) BPS string solitons. We use a dual supergravity formulation to deduc
e some of their properties via the AdS/CFT correspondence. (C) 1999 Elsevie
r Science B.V. All rights reserved.