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London*
"Aeea.—The area of London (the registration division
so called) is 78,080 acres, or 122 square miles, including
2,718 acres of the Thames. The length of the streets and
roads is more than 1,600 miles. The area of London, being
122 square miles, is equal to a square of about 11 miles to
the side. Assuming it to be crossed by straight roads at
equal intervals there would be 145 such roads, each 11
miles long, and 134 yards apart.
"Elevation.—The population of London resides at a
mean elevation of 39 ft. above Trinity high-water mark;
the elevation varying from 11 ft. below high-water mark
in Plumstead Marshes to 429 ft. above high-water mark in
Hampstead.
"Houses.—At the census in 1881, there were within
this area 486.286 inhabited houses, containing an average
of 7*8 persons to a house, exactly corresponding with the
proportion in 1861 and 1871.
"Annual Rateable Value.—The annual rateable
value of property in the metropolis in April, 1881, as
assessed in accordance with the Valuation (Metropolis)
Act. 1869, was equal to £27,405,488.
"Density of Population (1881).—49 persons to an
acre ; 31,408 to a square mile.
"Annual Rate of Increase of Population—per cent.
1861—71,1-50; 1871—81,1-61.
*From the Annual Summary of the Registrar General of Births,
Deaths, and Marriages.