Volume 84, Issue 1, July 1966

On the deformation of rings and algebras. II

Pages 1-19 by Murray Gerstenhaber

Blocks with cyclic defect groups

Pages 20-48 by Everett C. Dade

Word problems and recursively enumerable degrees of unsolvability. A sequel on finitely-presented groups

Pages 49-84 by William W. Boone

Vector fields on $\pi$-manifolds

Pages 85-90 by Glen E. Bredon, Antoni A. Kosinski

Cobordism theories

Pages 91-101 by William Browder, Arunas Liulevicius, Franklin P. Peterson

On sheaf cohomology and envelopes of holomorphy

Pages 102-118 by Henry B. Laufer