Number of persons to a dwelling in Boston, 1880 (census) 8.26 Number of deaths in New York, 1880 31,937 " " London, 1881 81,431 " " Philadelphia, 1880 17,711 " " Brooklyn, 1880 13,222 " " Boston, 1880 8,612 Death-rate of New York, 1880 26.47 " London, 1881 21.3 " Philadelphia, 1880 20.91 " Brooklyn, 1880 23.33 " Boston, 1880 23.75 Number of deaths in New York, 1889 39,679 Number of deaths in London, 1889 75,683 " " Philadelphia, 1889 20,536 " " Brooklyn, 1889 18,288 " " Boston, 1889 10,259 Death-rate of New York, 1889 25.19 " London, 1889 17.4 " Philadelphia, 1889 19.7 " Brooklyn, 1889 22.5 " Boston, 1889 24.42 [Footnote 25: In 1869, a tenement was a house occupied by four families or more] [Footnote 26: In 1888, a tenement was a house occupied by three families or more] For every person who dies there are always two disabled by illness, so that there was a regular average of 79,358 New Yorkers on the sick-list at any moment last year. It is usual to count 28 cases of sickness the year round for every death, and this would give a total for the year 1889 of 1,111,082 of illness of all sorts. Number of deaths in tenements in New York, 1869 13,285 " " " " " " 1888 24,842 Death-rate in tenements in New York, 1869 28.35 " " " " " 1888 22.71 This is exclusive of deaths in institutions, properly referable to the tenements in most cases. The adult death-rate is found to decrease in the larger tenements of newer construction. The child mortality increases, reaching 114.04 per cent. of 1,000 living in houses containing between 60 and 80 tenants. From this point it decreases with the adult death-rate.