Page:The Anatomy of Tobacco.pdf/109

 for as follows:—The reception of the smoke into the body acts in two modes—firstly, directly upon the body. And to this first mode are to be referred nausea and sickness as resulting directly from it, and having no connection with the sight of the smoke in the air. Secondly, through the body indirectly on the mind, in which it excites certain sensations and dispositions. Now one of these dispositions is a pleasure in watching the clouds of smoke as they rise, and a desire to do so. Hence if it be dark and the smoke invisible this desire is ungratified, and the pleasure reduced. So in proportion to the virtue of the tobacco is the disappointment experienced, seeing that the more virtuous it be the more does it stir up this desire of beholding the smoke. But the effect upon the body remains entirely the same, being less or greater according to the stomach of the smoker or his habitude to smoking. Such is the explanation of diminution (or even extinction) of pleasure in smoking in the dark.

Now the next question is—how to ac-