The local authorities, with simpler duties to perform, were able to get quicker to work. They appointed "Surveyors" in each parish to look after the multifarious duties in connection with the paving, lighting, and cleansing of the streets, with scavenging, and the removal of house and trade refuse, and with the construction and maintenance of local sewers and drains. In a sort of way some of this work had been done by the previous petty authorities; parts of it, therefore, were more or less familiar, and so not wholly new. But wholly new, and of very great importance, were the appointments which the new local authorities had to make for their districts of a Medical Officer of Health, and of one or more Inspectors of Nuisances to help him. The duties of the Medical Officer of Health were carefully prescribed by the Act. He was to inspect and report periodically upon the sanitary condition of the parish; to ascertain the existence of diseases increasing the rate of mortality; to point out the existence of any causes likely to originate or maintain such diseases, as well as to suggest the most efficacious mode of checking and preventing their spread, and various other important sanitary duties. These appointments were duly made, and some appointments also of Inspectors of Nuisances. 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.