The lack of effect of a magnetic field on the dielectric constant of HCl and NO

Using an electron tube method, experiments have been performed to test whether the dielectric constant of HCl and NO gases changes when a strong magnetic field is applied. The magnetic field strength was 4800 gauss and the apparatus was capable of definitely detecting a change in dielectric constant of one part in 100,000. The gases were tested at pressures of from about 2 to 40 cm of mercury, at room temperature, and with the magnetic field both parallel and perpendicular to the electric field. No change was detected under any conditions.