  Extensive simulations are made on the bimodal Ising Spin Glass (ISG) in
dimension four. The transition temperature is established using a combination
of standard finite size scaling and of thermodynamic derivative peak data.
Measurements in the thermodynamic limit regime are analysed so as to estimate
critical exponents and confluent correction terms. Comparisons with results on
other 4d ISGs show that the susceptibility and correlation length critical
exponents $\gamma$ and $\nu$ depend on the form of the interaction
distribution. From this observation it can be deduced that critical exponents
are not universal in ISGs.
