Table of Contents

*Frontmatter, pg. i*CONTENTS, pg. v*INTRODUCTION, pg. vii*BIBLIOGRAPHY, RALPH HARTZLER FOX (1913-1973), pg. viii*SYMMETRIC FIBERED LINKS, pg. 3*KNOT MODULES, pg. 25*THE THIRD HOMOTOPY GROUP OF SOME HIGHER DIMENSIONAL KNOTS, pg. 35*OCTAHEDRAL KNOT COVERS, pg. 47*SOME KNOTS SPANNED BY MORE THAN ONE UNKNOTTED SURFACE OF MINIMAL GENUS, pg. 51*GROUPS AND MANIFOLDS CHARACTERIZING LINKS, pg. 63*HNN GROUPS AND GROUPS WITH CENTER, pg. 87*QUOTIENTS OF THE POWERS OF THE AUGMENTATION IDEAL IN A GROUP RING, pg. 101*KNOT-LIKE GROUPS, pg. 119*ON THE EQUIVALENCE OF HEEGAARD SPLITTINGS OF CLOSED, ORIENT ABLE 3-MANIFOLDS, pg. 137*BRANCHED CYCLIC COVERINGS, pg. 165*ON THE 3-DIMENSIONAL BRIESKORN MANIFOLDS M(p,q,r), pg. 175*SURGERY ON LINKS AND DOUBLE BRANCHED COVERS OF S3, pg. 227*PLANAR REGULAR COVERINGS OF ORIENTABLE CLOSED SURFACES, pg. 261*INFINITELY DIVISIBLE ELEMENTS IN 3-MANIFOLD GROUPS, pg. 293*Backmatter, pg. 337