The facts are classified, as heretofore, in the manner which will most easily display their practical meaning. First, namely, the deaths of the period are recorded in their local distribution, so that you may compare one part of the City with another in respect of healthiness. Next, they are so tabulated according to ages, as to indicate the prevailing proportion of untimely death. Thirdly, those of them are separately enumerated which, in their several classes, chiefly occur as results of acute disease in connexion with removable causes. In after years, when sanitary improvements, now only in contemplation or commencement, shall have produced their legitimate results and rewards, these tables may serve an important use. Indicating the standard of public health within the City before such works were achieved, and constituting a permanent record of your starting-point, they will qualify your successors to estimate the amount of amelioration which your endeavours shall have produced. The details of your present sanitary condition, as varying in different sub-districts of the City, and as fluctuating in the several years and seasons of the quinquennial period, are expressed in the figures of these tables more compendiously and more clearly than I could hope to convey them in words. Here, therefore I restrict myself to telling you very briefly their general results. The population of the City--about 130,000 persons--has been dying during these five years at the rate of about 24 _per_ thousand _per annum_. The sub-district rates which give this aggregate vary from under 18 to above 29; the former death-rate belonging to your healthiest locality--the north-west sub-district of the City of London Union; while the latter--more than 60 _per cent._ higher--mortality belongs to the north sub-district of the West London Union. The lowest death-rate hitherto attained in this country for a considerable population, during a term of seven years, has been 14 _per_ thousand _per annum_; which your worst sub-district mortality more than doubles. As different districts contribute unequally to your average death-rate, so also do different ages. Among all the population exceeding five years of age, the death-rate is under 17 _per_ thousand _per annum_; while, for children under five years of age, the rate is nearly 85. And these rates are unequally constituted by your three chief districts in the following proportion; viz.:-- Annual Rate of Deaths to 1000 Over 5 Years Under 5 Years living persons. of age. of age. East London Union 16·68 91·99 West London Union 20·58 94·84 City of London Union 15·06 71·72 ----- ----- Average death-rate in the City 16·85 84·72