Herein was involved the clear recognition of another principle of the utmost consequence—that of inspection—a principle very naturally held in abhorrence by all sanitary misdoers. It had previously been put spasmodically into operation, and with the best effects, on the occasions when Asiatic cholera was approaching or raging in the country, but when the panic had subsided it was promptly dropped, and every one was practically left free to commit any sanitary enormity with impunity. Henceforth, however, there would be the contingency of being found out for breaches of sanitary laws, and the eye of the law would, at least theoretically, be upon sanitary law breakers.

The majority of the Medical Officers of Health entered energetically on their work, and thenceforward a constant light was thrown upon the sanitary condition of various parts of the metropolis by men who lived in the closest and most unceasing contact with the devastating evils afflicting the masses of the people. All were not equally efficient or energetic—all were not equally communicative—but the reports of many of them are full of interesting facts, of acute and instructive comment, and of wise counsel; and though holding office at the pleasure of their employers, many of these officers were courageously independent and outspoken in their criticism and advice.[58]

Unfortunately, the reports had practically no circulation beyond the members of the bodies to whom they were made, if even they were read by them, and the recommendations made therein were too often absolutely ignored by those bodies, or, for reasons of self-interest, opposed.

To us now, however, these reports are of the greatest value, being in many respects the most valuable official records existing on the subject. We learn from them, better than we do from any other source, as regards the various parishes of London, the nature, and in some measure the extent of the evils which existed, and the causes of those evils; we find in them opinions expressed and reiterated as to the best way of remedying those evils, and accounts of the results of the efforts made to remove or cure those evils.

The reports set forth facts demonstrating the appalling misery which the great masses of the people of the metropolis endured; the loathsome foulness in which vast numbers of them habitually lived, and were allowed to live; the dreadful hardships they had to suffer; the fearful moral and physical contamination they underwent; the terrible death-roll—in great part preventable—and the ten or twenty-fold larger roll of victims of preventable illnesses and epidemics, with the consequent poverty which sickness entailed.

We can bit by bit piece together from these reports a realistic picture of the sanitary condition of London as a whole during the successive periods of the latter half of the nineteenth century, and we can discern the action of the silent, steady, and irresistible economic forces which unintermittently dominated that condition. North and south in the metropolis, east and west, it was all the same, varying only in intensity, in extent, and, in some degree, in form; a harrowing and almost incredible story. And the remarkable concurrence of testimony from men acting independently of each other, and resident in wholly different parts of London, justifies the fullest confidence in statements uniformly harmonious.

The metropolis is so large a place, with such marked differences between its component parts, differences in situation, and physical characteristics, and degree of development—differences in wealth and poverty, and in the occupations of their inhabitants—that the attempt to trace any special branch of its history is beset with the greatest difficulties.

Especially is this the case when the subject treated of is so complex and comprehensive as that of the public health.

It is manifest that all parts of the metropolis cannot be described simultaneously—whilst to go “seriatim” into the history of the public health in each separate locality would, by the very weight of detail, fail to convey an impression of the subject as a whole.