nourished by the influence of a large supply of oxygen which it bears to every portion of the system, and especially the brain, while in the other, it is only partially decarbonated, and bears a taint during its whole round of circulation. The thousands who are, in the present, immersed in the dense atmosphere of cities, large towns, manufacturing establishments, and mines of various kinds, were accustomed, in former times, to live largely out-of-doors, and were engaged in such pursuits as tended to develop and strengthen the whole system.

In the former conditions of life, persons were, to a much larger degree, governed, and their requirements provided for, by legal, or arbitrary, enactments, so that there existed less care on their part, as to obtaining those things necessary for self and family, while in the present, the larger degree of personal liberty enjoyed, and the multiplied artificial wants created, bring increased care and individual responsibility.

3. Again, there has, within quite a recent period of time, come a considerable change in the human system itself, attributable in a measure, probably, to some or all of the above causes, in relation to the character and tendencies of diseases. During the former period, it is believed that diseases affected more often the circulatory system, and that they were largely of a more sthenic character; that they were treated in a manner much more heroic than would be well borne at the present time is quite plain, whether it was judicious or otherwise. Now, the force or tendency of disease seems to be carried over (if I may so speak) into the nervous system, so that diseases affecting this portion of the body are much more frequent than formerly. People are more sensitive and nervous; indeed, nervousness has become exceedingly common among all classes, and modifies many forms of disease, thereby inducing an asthenic type, which requires the use of vastly larger quantities of those tonic medicines which act on the nervous system, than would have been tolerated fifty years ago. And the keen competitions in business, the intense mental activities which pervade all the vocations of modern life, the ruling passion for wealth which extends through almost all classes of society, and the consequent neglect of those laws which govern health, all tend to further increase it. From these causes, there can but result, on the whole, a much less vigorous system and one less able to resist the effects of strain and anxiety, and much less robust families of children, many of whom have, from the beginning, in their nervous systems, weaknesses which cling to them through life.

These considerations, and others which may be referred to more fully hereafter, would appear to indicate the probability that there have been in operation such powerful influences as would tend toward an increase of insanity beyond that which would be anticipated from the increase of the general population.

The increased demand for hospital accommodation for the insane, which has been so great within recent years, has been thought, by some, to indicate a certainty of such increase of insanity. While there may be some show for such an inference, I do not think it very conclusive, as this demand may be readily accounted for by other reasons, of which the following may be mentioned.

1st. The general condition of asylums for the insane has greatly improved everywhere within the last forty years: buildings, grounds, and the general external appearances have become more attractive; halls and rooms have been better furnished, lighted, heated, and ventilated, and consequently more cheerful and inviting in appearance to patients and friends. There is much less of mechanical restraint used than was formerly considered necessary, and a larger amount of personal freedom; while the introduction of labor among the inmates more generally has served to render life in asylums more like that at home, especially for the chronic insane. In consequence, or partly in consequence, the public have come, more fully than ever before, to appreciate the good results which arise, both directly and indirectly, from asylum treatment, and have lost, in a large measure, the distrust formerly existing in relation to these institutions, and are now more ready to place their friends and relatives in them for care.

2d. The view has become more general, that those who are so unfortunate as to become insane, have claims upon the public, more obligatory than any other class in the community can have, and, consequently, very large numbers who were formerly detained in almshouses and in county poorhouses, have been removed and placed under the more favorable conditions of hospitals better adapted to their humane care.

3d. Formerly it was considered necessary to place only the more acute and violent forms of disease in asylums for treatment, while the chronic insane, especially those in a demented and quiet condition, were retained at home; but more recently persons are inclined to recognize the importance of placing these classes, also, in asylums, where they may be under the care of persons who have been educated for the purpose, and consequently understand better how to manage and care for them; and also for the purpose of leaving the productive members of the family free to engage in ordinary industry.

4th. It has also come to pass that many who were formerly considered only as eccentric or singular in their general conduct and relations with others, are now recognized as partially insane, and consequently society is less tolerant of their presence, and more urgent that they be removed to places of greater safety, and where their general influence may be less harmful.

Further, 5th. Allowance has to be made for ordinary accumulation of persons who may be considered as asylum inhabitants. It is a general rule, with few exceptions, that persons who have once passed through the experience of a serious illness never are in quite as perfect a state of health afterward, and in many cases are more likely to be again affected; and in reference to insanity this is especially true. Every one who has once been insane is more likely to become so again; so that the fact that from thirty to fifty per cent. of the insane recover once, renders the probability of larger numbers hereafter greater. Then, of the numbers who do not recover and do not die, many live on for a much longer period than formerly. There can be no doubt that the existence of even such functional disease of the brain as may cause insanity, tend to shorten life in the vast majority of persons so affected, while the lack of care and treatment, and too often long-time neglect and abuse formerly prevalent among the insane, served to shorten the period of life still more. The fact that under the more favorable conditions of hospital life these persons live for much longer periods than would otherwise be the case, tends largely to explain the increase of numbers who appear to be so rapidly accumulating in the asylums and hospitals of the country.

In forming an opinion, therefore, as to the increase of insanity, from indications based on the numbers which are now provided for by the public, it becomes necessary to take into the account all the above considerations, and perhaps some others. Indeed, the item of numbers in asylums is but one of the factors of the problem, which embraces a large field for observation.

Bearing the above preliminary considerations in mind, we may now refer to something more definite in the way of statistics, for the purpose of answering our inquiry.

It is evident that the usual census, if it could be made frequently enough, and