There are many causes operating, which serve to perpetuate and increase this evil. It is a well-known fact, that mental excitement tends to weaken the physical system, unless it is counterbalanced by a corresponding increase of exercise and fresh air. Now, the people of this Country are under the influence of high commercial, political, and religious stimulus, altogether greater than was ever known by any other nation; and in all this, women are made the sympathizing companions of the other sex. At the same time, young girls, in pursuing an education, have ten times greater an amount of intellectual taxation demanded, than was ever before exacted. Let any daughter, educated in our best schools at this day, compare the course of her study with that pursued in her mother's early life, and it will be seen that this estimate of the increase of mental taxation probably falls below the truth. Though, in some countries, there are small classes of females, in the higher circles, who pursue literature and science to a far greater extent than in any corresponding circles in this Country, yet, in no nation in the world are the advantages of a good intellectual education enjoyed, by so large a proportion of the females. And this education has consisted far less of accomplishments, and far more of those solid studies which demand the exercise of the various powers of mind, than the education of the women of other lands. And when American women are called to the responsibilities of domestic life, the degree in which their minds and feelings are taxed, is altogether greater than it is in any other nation.