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The article by Dr. Houghton, which appears in this issue of the Journal, is the fourth and last contribution upon the merits of the Cabinet known by the rather cumbrous name of "Pneumatic Differentiator." Dr. Herbert F. Williams, of Brooklyn, brought it to the notice of the profession at large by a report in the New York Medical Record, Jan. 17, 1885, of its trial in sixty-four cases of various pulmonary complaints. He subsequently discussed its action and limitations before the Climatological Society at its meeting in New York last Spring. A report of his paper, together with remarks upon it by Drs. Armour and Loomis, may be seen in the New York Medical Journal of Oct. 3, 1885. In the columns of the Journal of Aug. 1, 1885, is an article by Dr. Vincent Bowditch, of Boston, wherein he reviews the subject of pneumatic therapeutics and cabinets and the
PNEUMATIC DIFFERENTIATION.. JAMA. 1885;V(19):517-518. doi:10.1001/jama.1885.02391180013004