Essay on the Pathology of the Blood

Fig. 1 illustrates the course of phlebitis in the arm after venesection, and the salutary efforts of nature to stop the progress of the disease at b. The wound was made in the median basilic vein, which inflamed, and an abscess formed at f. As the disease advanced, the consolidated blood at h and at c was broken down and converted into pus: this change was seen in progress at c. The abscess pointed at a, and the patient died from the constitutional effects.

Fig. 2. Fatal case of phlebitis produced by an attempt to heal a varicose ulcer in the leg, by Opening the vein, and healing the wound by granulations. See Case, page 354.

Fig. 3. Phlebitis occurring from the formation of an abscess, when the stump of an amputated limb had nearly healed. See page 342.

Fig. 4. Consolidation of blood in a vein from the irritation of a ligature. See page 335.

Figs. 5 and 6. The effects of a strong ligature applied to the femoral vein, artery, and popliteal nerve, in a man who died two days after the amputation of his leg. From the severity and continuance of the cause, the inflammation in the vein had rapidly passed on to the suppurating stage; while the artery had consolidated portions of blood at its extremity. See page 369.

Fig. 7. Example of the rupture of the descending portion of an aorta at b, by percussion. See page 319.

Fig. 8. Phlebolites: a, 0, common forms; b, as frequently found, surrounded with a coagulum of blood; and (1, one divided, shewing its laminated structure. See page 337.

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