1. An abscess in the lungs is generally the consequence of a neglected, or half-cured pneumony. It is seldom fatal, where it is not connected with a predisposition to consumption from general debility, or where general debility is not previously induced by the want of appetite, sleep, and exercise, which sometimes accompany that disease of the lungs. This explanation of the production of consumption by an abscess in the lungs, will receive further support from attending to the effects of wounds in the lungs. How seldom are they followed by pulmonary consumption; and this only because they are as seldom accompanied by predisposing general debility. I do not recollect a single instance of this disease having followed a wound in the lungs, either by the bayonet, or a bullet, during our revolutionary war. The recoveries which have succeeded such wounds, and frequently under the most unfavourable circumstances, show how very improbable it is that a much slighter affection of the lungs should become the cause of a pulmonary consumption. A British officer, whom I met in the British camp, a few days after the battle of Brandywine, in September, 1777, informed me that the surgeon-general of the royal army had assured him, that out of twenty-four soldiers who had been admitted into the hospitals, during the campaign of 1776, with wounds in their lungs, twenty-three of them had recovered. Even primary diseases of the lungs often exist with peculiar violence, or continue for many years without inducing a consumption. I have never known but one instance of the whooping-cough ending in consumption, and all our books of medicine contain records of the asthma continuing for twenty and thirty years without terminating in that disease. The reason in both cases, must be ascribed to those two original diseases of the lungs not being accompanied by general debility. One fact more will serve to throw still further light upon the subject. Millers are much afflicted with a cough from floating particles of flour constantly irritating their lungs, and yet they are not more subject to consumptions than other labouring people. Hence "a miller's cough" is proverbial in some places, to denote a cough of long continuance without danger.