## Communications in Mathematical Physics

Communications in Mathematical Physics is published by Springer-Verlag. The portion made available in Project Euclid, volume 1 (1965) through volume 183 (1997), is provided through the publisher's generous support of the EMANI project. Electronic access to the current volumes (1997 to present) is available through SpringerLink with a paid subscription.

On the solvability of Painlevé ${\rm II}$ and ${\rm IV}$Volume 144, Number 3 (1992)
The critical probability of bond percolation on the square lattice equals ${1\over 2}$Volume 74, Number 1 (1980)