"Adopting the lowest estimate which has been given of the daily work done by the heart, viz., as equal to 122 tons lifted one foot, the heart, during the alcoholic period, did daily work in excess equal to lifting 15.8 tons one foot, and in the last two days did extra work to the amount of 24 tons lifted as far. "The period of rest for the heart was shortened, though, perhaps, not to such an extent as would be inferred from the number of beats; for each contraction was sooner over. The heart, on the fifth and sixth days after alcohol was left off, and apparently at the time when the last traces of alcohol were eliminated, showed, in the sphygmographic tracings, signs of unusual fulness; and, perhaps, in consequence of this, when the brandy quickened the heart again, the tracings showed a more rapid contraction of the ventricles, but less power than in the alcoholic period. The brandy acted, in fact, on a heart whose nutrition had not been perfectly restored."[16] In reference to the result of the above experiments, it will be observed that no special notes are made except in relation to the action of the heart. The primary effect of alcohol is upon this organ, through its influence upon the nervous system. It, however, by no means ends here, but through it extends to all other portions of the body. Now, the heart (and all other organs of the system) may be said to have a unit of power--so much, and no more inherent strength of action; so much capacity of function. If, therefore, under the influence of alcohol or any other drug, an organ is made to do two hours' work in one, or in any measure an increase of its normal activity is secured, a draft is made upon its _reserve_ power, and, that it may regain this, there must necessarily afterward occur a period of so much less than normal activity. In other words, what has been gained in action under the effect of stimulus, must be lost on its withdrawal, and there must ensue a period of feeble and imperfect action, which is radiated to all other portions of the system, and is manifest in none more fully than in the brain. Indeed, upon the action of the heart as to frequency and regularity, depends the action of the brain as to continuity and strength of thought; and this, in even a greater measure than in relation to the functions of other parts. The brain at all times contains a much larger portion of the blood than any other organ, and this quantity is imperatively necessary to its normal action as to thought. To such an extent is this so, that consciousness at once fades into darkness, and all thought ceases instantaneously, upon the check of its circulation, even in certain limited areas of its surface.