5. It should be used sparingly in the diseases of habitual drunkards. The morbid action in such persons, though often violent, is generally transient. It may be compared to a soap-bubble. The arteries, by being often overstretched by the stimulus of strong drink, do not always contract with the diminution of blood, and such patients often sink, from this cause, from the excessive use of the lancet. 6. It has been forbidden after the suppurative process has begun in local inflammation. It constantly retards the suppuration, when begun, in the angina tonsillaris, and thus protracts that disease. To this rule there are frequent exceptions. 7. It should be omitted in pneumony, after copious expectoration has taken place. This discharge is local depletion, and, though slow in its effects compared with bleeding, it serves the same purpose in relieving the lungs. The lancet can only be required where great pain in coughing, and a tense pulse, attend this stage of the disease. 8. It may be omitted (except when the blood-vessels are insulated) in those diseases in which there is time to wait, without danger to life, or future health, for the circuitous operation of purging medicines, or abstemious diet. 9. It should be avoided, when it can be done without great danger to life, where there is a great and constitutional dread of the operation. In such cases, it has sometimes done harm to the patient, and injured the credit of the lancet. 10. There are cases in which sizy blood should not warrant a repetition of blood-letting. Mr. White informs us, in the History of the Bilious Fever which has lately prevailed at Bath, that bleeding, in many cases in which this appearance of the blood took place, was useless or hurtful. In some of the fevers of our own country, we sometimes see sizy blood followed by symptoms which forbid the repeated use of the lancet, but which yield to other depleting remedies, or to such as are of a cordial nature. I have seen the same kind of blood, a few hours before death, in a pulmonary consumption, and three days after a discharge of a gallon and a half of blood from the stomach by vomiting.