Abstract
Electric-field effects are investigated in non-ionic fluids near the critical point. We first derive an upward shift of the critical temperature proportional to the square of the field. Its sign is opposite to that predicted by Debye and Kleboth. Second, we derive an induced dipolar interaction among the critical fluctuations, which suppresses the fluctuations and yields another upward shift. The fluctuation contribution to the macroscopic dielectric constant is also examined.