89 Unpublished MSS., 1882.

90 Deutsches Arch. für klin. Med., vol. xxv., 1880.

The author has carefully gone over Leichtenstein's collected cases, and he finds a number of deaths mentioned by other European authors which are not included in his list. (The reader is referred to the theses of Terrillon,91 Foucart,92 Foster,93 Dieulafoy,94 Mercier,95 Pinault,96 Wilson Fox,97 and others.) Terrillon alone reports 6 deaths with symptoms of oedema of the lungs following thoracentesis. Leichtenstein does not mention any deaths from embolism, such as are quoted by Goquel, Chaillon, and Woillez. In his collection he gives only 1 death by syncope, whereas Dieulafoy comments upon 4 as found recorded by Trousseau and other French authorities. Toussaint's98 statistical tables of 300 cases, collected from other sources, give 14 deaths. Wilson Fox collected between 30 and 40 deaths connected with thoracentesis. Besnier stated in 1876 that the mortality from pleurisy in the French hospitals had greatly increased since the practice of thoracentesis had been largely followed. It is difficult to account for this in the face of the statements made by so many of its innocuousness when properly guarded: it may be explained by the fact that suppurative pleurisies are often confounded with those of a fibro-serous nature and treated by simple aspiration. Many fatal cases of empyema are complicated with phthisis; formerly these were added to the mortality for phthisis; where paracentesis was performed upon them they were added to the pleurisy column. Bearing in mind that chronic pleurisies, serous and purulent, are frequently consecutive to diabetes, Bright's disease, chronic alcoholism, cirrhosis of the liver, and other organic diseases, patients die of the primary lesions, though they have been relieved of the secondary ones. These statistics may record the deaths as resulting from pleurisy, for which there was operative interference, instead of from the organic diseases.

91 Loc. cit.

92 Loc. cit.

93 Clin. Obs.

94 Loc. cit.

95 Thèse de Paris, 1876.

96 Ibid., 1855.

97 Brit. Med. Journ., Dec., 1877.