Measurements are reported which show that the room-temperature nematic MBBA can be deformed by means of curvature electricity if it is contained in a thin sandwich cell with the electric field parallel and the unique axis normal to the bounding walls. Meyer's coefficient e 33 was determined to be 4 · 10 -5 dyne 1/2 at room temperature; and its sign was found to be positive.
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Schmidt et al. (1972) studied this question.