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4
The birth-rate for England and Wales for 1905
was 27.2 and the death-rate uncorrected was 15.2.
Deaths under one year to 1,000 births, England
and Wales 128, less the 217 large towns 113. For
England and Wales, less the 217 large towns,
the birth-rate was 26.9 and the death-rate 14.9.
Number of Persons
per acre,
and N inn helper
Inhabited
House
About 2 acres to one person. The number of
inhabited houses in the district is about 4,200, and
the number of inhabitants per house 5.2.
Chief Geological
Features.
The geological formation underlying the district
is chalk, which crops out at Grays and Stifford.
Thanet sands occur on the uplands of Aveley,
Grays, Little Thurrock, Chad well-St.-Mary and
West Tilbury. Woolwich beds at parts of Orsett,
South Horndon-on-the-Hill (Pump - street), and
North Stanford-le-Hope. London clay crops out
at Bulphan and the adjoining parts of Orsett,
Horndon-on-the-Hill, Laindon Hills, Corriugham
and Fobbing. Patches of Bagshot beds occur at
Laindon Hills (the top) and Dry-street, Fobbing,
Brick earth and gravel at various places. Alluvial
deposit on the whole south border of district and
greater part of the eastern boundary, and at Orsett
and Bulphan Fens
Chief Physical
Features.
The district is for the most part flat and low.
The only hill of importance is Laindon Hills (in
the North-East), 385ft. high. It is bounded on the
south and east (in great parts) by the river Thames.
Bordering the Thames are marsh lands, varying in
width from a few yards (at Purfleet) to 1½ miles on
the south-east and east. At the north edge of the
marshes the land rises to a height of 100ft. or so,
the greater part of the district being a table-land,
which gradually falls to the north.
Water Supply.
The chief supply of the district is derived from the
South-Essex Water Company. The mains supply
Tilbury Docks, Little Thurrock, West Thurrock,