misfortune and misery.) The distinction between the idiot and the insane is clear and marked. The madman suffers from abnormal development of brain, the idiot from an ill-developed brain—the mind of the madman is not in proper balance, in the idiot it is not in proper power.

The poor idiot (the word being derived from the Greek ισιοτης[4]) is alone in the world; isolated as it were from the rest of nature, he sees but does not perceive, he hears but does not understand or appreciate; the organs of sight and hearing may be perfect and yet useless; the impressions formed upon the optic and auditory nerves are duly transmitted to the sensorium, but no idea is there excited; he cares for nothing, and is alike indifferent to the grandeur as to the beauties of Nature; he stands unmoved at the thunder clap, the foam of the rushing cataract, or the roar of the mighty ocean; he heeds not the hum of the insect world or the song of the early lark, that winged chorister of the air; the star-bejewelled canopy of heaven, the mountain landscape lighted up with all the purple splendour of the setting sun, all these are nothing to him—he is a soul shut up in imperfect organs.

CAUSES OF IDIOCY.

It will be utterly impossible in the short time allotted to me, to enter at any length upon the various causes of idiocy, a study of which is, however, fraught with many a useful lesson. Suffice it to say that as the cause is always antecedent to any personal history of the child, idiocy is never dependent on the idiot himself, who has never become so through any vices of his own; he being in many instances the feeble expression of parental defects, and sometimes of parental vices, and is therefore more an object for commiseration than certain lunatics, who, in many instances, have become so through faults of their own. As to the social aspect of idiocy, it recognises no distinction of rank; it may occur in the homes of the affluent, or in the hovels of the most indigent. It is found in all civilised countries, but it is not an evil necessarily inherent in society, and is the result of the violation of natural laws, in some way or other, and at some time or other, and the effect may not show itself for two or three generations. A very large class of persons ignore the conditions upon which health and reason can co-exist; they pervert the natural appetites of the body, and the natural emotions of the mind, and thus bring down the awful consequences of their own ignorance upon the heads of their unoffending children.

Idiocy may be a congenital infirmity, or may be developed in early infancy. In the first category, the cause must necessarily be traced to intra-uterine life, and must be sought for in the history of the parents; in the second class, the cause may sometimes depend upon parental defects, and sometimes is due to a cerebral affection occurring soon after birth, but even in this class of cases, hereditary predisposition must be considered as a powerful factor in the genesis of the disease. In fact, the development of idiocy, whether congenital or otherwise, is in most instances to be attributed to an hereditary morbid vice, and it is one of the most common and striking forms of the degeneration of the human species.

Hereditary tendencies have much to do with the development of physical defects and bodily ailments, and this result is especially apparent in diseases of the nervous system; and there can be no doubt that heredity is a potent factor in the production of idiocy. Dr. Ireland says, "idiocy is, of all mental derangements, the most frequently propagated by descent;" and the statistics of Ludwig Dahl, of Christiana, showed that fifty per cent. of idiots had insane relations, those of Dr. Fletcher Beach showed a history of hereditary predisposition in 76 per cent., whilst those of Moreau, of Tours, give a proportion as high as 90 per cent.

In thus expressing myself, I should be sorry that my remarks should be construed as intended to cast any imputation upon those who have unfortunately an idiot in their family; the cause of the evil may be in some remote progenitor, for the transmission of the infirmity is not always direct, and the neurotic tendency may skip a generation, or be traced even further back.

Intemperance. One of the most fruitful causes of idiocy is the abuse—mark, I do not say the proper use—of alcoholic stimulants, which tends to bring families into a low and feeble condition, which thus becomes a prolific cause of idiocy in their children. From a report on idiocy, by Dr. Howe and other Commissioners appointed by the Governor of Massachusetts to ascertain the causes of this calamity in that State, it is stated that "out of 359 idiots, the condition of whose progenitors was ascertained, 99 were the children of inveterate drunkards;" and the report goes on to say further, "that when the parents were not actually habitual drunkards, yet amongst the idiots of the lower class, not one quarter of the parents could be considered as temperate persons. From a table drawn up by the late Dr. Kerlin, an American physician, in which the causes of the infirmity are given in 100 cases of idiotic children, I observe that in 38 of the number, intemperance on the part of the parents is traced as an accessory, main, direct, or indirect cause.

At the annual meeting of the British Medical Association, held at Cambridge, Dr. Fletcher Beach read a paper on the Intemperance of Parents as a predisposing cause of idiocy in children. In 430 patients, he was enabled to trace a history of parental intemperance in 138 cases, or 31·6 per cent.; of this number, 72 were males and 66 females."[5]

Other observers lay less stress upon parental intemperance as a cause of idiocy. Dr. Wilbur found that out of 365 cases in the State of Illinois, only eight cases were assigned to the abuse of drink in the parents; and Dr. Shuttleworth could trace this cause in only 16·38 per cent. of the cases observed by himself and by Dr. Fletcher Beach;[6] the same writer, under the head of toxic idiocy, mentions the case of an idiot boy, who was said to have been brought up on porter instead of milk. It will therefore be seen that there exists a great difference of opinion about the influence of intemperance of the parent in the causation of idiocy; but although statistics may vary upon this point, there cannot be a doubt that the children of drunken parents inherit an unhealthy nervous system, which in many cases culminates in idiocy.

Idiocy is especially prevalent in Norway, and Ludwig Dahl, a Norwegian writer, says that to the abuse of brandy, especially in the fathers, but also in the mothers during pregnancy, may be assigned an important, perhaps the most important, influence in the production of the large number of idiots in that country.

In considering this question, we must bear in mind that intemperance is only a relative term; for in the early part of the century