Volume 91, Issue 2, March 1970

## On some games which are relevant to the theory of recursively enumerable sets

Pages 291-310 by Alistair H. Lachlan

## Curvature and metric

Pages 311-331 by Ravindra Shripad Kulkarni

## Gauss transforms and zeta-functions

Pages 332-361 by Takashi Ono

## The $\lambda(\varphi^4)_2$ quantum field theory without cutoffs. II. The field operators and the approximate vacuum

Pages 362-401 by James Glimm, Arthur Jaffe

## On the oscillations of sums of independent random variables

Pages 402-418 by William Feller

## Complements of minimal spanning surfaces of knots are not unique

Pages 419-424 by William Robert Alford