Optometry by the subjective method : a paper read at the meeting of the British Medical Association, London, July, 1895 / by George J. Bull.

Des conséquences optiques et pathologiques du clignement des paupières / par Geo. J. Bull.

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Bull, George Joseph, 1848-

Works from the collections

Optometry by the subjective method : a paper read at the meeting of the British Medical Association, London, July, 1895 / by George J. Bull.

Des conséquences optiques et pathologiques du clignement des paupières / par Geo. J. Bull.