a1 Department of Mathematics and Statistics, Simon Fraser University, Burnaby, B. C. V5A 1S6, Canada
a2 Insttitut za Mathematiko, Fiziko in Mehaniko, Jadranska 19, 61111 Ljublijana, Slovenija, Yugoslavia
a3 Apartment 9Q, 275 West 96th Street, New York 10025
An infinite family of vertex-and edge-transitive, but not arc-transitive, graphs of degree 4 is constructed.
(Received July 26 1991)
(Revised February 05 1992)
1991 Mathematics subject classification (Amer. Math. Soc)