—Mr. J. S., aged 29, was examined November 3. His family is free from tuberculosis. In the spring of 1896 his illness began gradually with cough and expectoration, followed by a severe attack of hemoptysis; in the spring of 1898 a second attack of hemoptysis. Since that time his sputum has often been mixed with blood; weight 145 pounds; pulse 104; temperature 99.5 F. There are relative dulness, highpitched respiratory sounds and crepitant râles over the right apex and the greater portion of the right upper lobe.
125 cubic inches of nitrogen was injected into the pleural cavity. The pneumothorax was perfect, with very slight inconvenience to the patient.
Weight is 150 pounds; the cough considerably diminished; temperature 99 F; pulse 100. He feels generally improved. No report since October 11.
—Mr. J. M., aged 32, was examined Nov. 17, 1898. His