Abstract
The zeros of the partition function for the zero field two-dimensional Ising model in the complex temperature plane are represented in terms of the eigenvalues of the transfer matrix. The boundaries of the limiting distribution have a particular simple representation in terms of the correlation range along the two principal axes of the quadratic lattice. Examples of the distribution in the complex plane of z=exp(-2K) are given for the anisotropic model when the horizontal and vertical interactions are in integer ratio.