318 Trans. de l'Assoc. pour l'Adv. des Sciences, 6th Session, 1877.

The syphon method has been of late years very extensively used, especially by Southey, W. H. Stone, and Garland, A. T. H. Waters, Wilks, Oxley, and habitually by Douglass Powell. It is a feeble aspirating force, which has very decided advantages. It is effective, and acts slowly and uninterruptedly with a gentle and uniform negative pressure. Its action allows the lung gradually to expand and the displaced organs slowly to resume their normal position. It thus in many cases furnishes us with a safe means of thoracentesis. (See [Surgical Treatment, in Pleurisy].)

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DISEASES OF THE CIRCULATORY SYSTEM.

[DISEASES OF THE SUBSTANCE OF THE HEART.][THE OPERATIVE TREATMENT OF PERICARDIAL EFFUSIONS.]
[ENDOCARDITIS AND CARDIAC VALVULAR DISEASES.][DISEASES OF THE AORTA.]
[CYANOSIS AND CONGENITAL ANOMALIES OF THE HEART AND GREAT VESSELS.][DISEASES OF THE CORONARY, PULMONARY, SUPERIOR MESENTERIC, INFERIOR MESENTERIC, AND HEPATIC ARTERIES, AND OF THE COELIAC AXIS.]
[CARDIAC THROMBOSIS.][DISEASES OF THE VEINS.]
[NEUROSES OF THE HEART.][THE CAISSON DISEASE.]
[DISEASES OF THE PERICARDIUM.][DISEASES OF THE MEDIASTINUM.]

DISEASES OF THE BLOOD, AND OF THE HÆMATOPOIETIC SYSTEM.

[DISEASES OF THE BLOOD AND BLOOD-GLANDULAR SYSTEM.][DISEASES OF THE THYROID GLAND.]
[DISEASES OF THE SPLEEN.][SIMPLE LYMPHANGITIS.]