cover image: Journal of the Asiatic Society of Bengal  Part II  Physical Science  1880

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20.500.12592/1gv4nd

Journal of the Asiatic Society of Bengal Part II Physical Science 1880

1880

In the present paper it will be my purpose to contrast the nature of the water employed in Calcutta in former years (before the introduction of the present hydrant water) with the supply as it has been since the introduction of the Hooghly water which is collected and filtered at Pultab and then distributed by the hydrants etc. [...] In speaking of the former supply of water to Calcutta I have assumed that it was confined to the various tanks and wells distributed throughout the town ; for though there is no doubt that the river water was used consderably by the inhabitants who lived near the banks of the river yet the greater number of the inhabitants living as they did at a distance from the river must have depended fo [...] " The deficiency of water leading to insufficient cleansing of sewers has a great effect on the spread of typhoid fever and of choleraic diarrhoea; and eases have been known in which outbreaks of the latter disease have been arrested by a heavy fall of rain." In judging of the quantity of water necessary to be supplied to a town notice must be taken of the purposes for which the water is used. [...] The numbers given in the following table show the number of parts of total ammonia and of chlorine in every million parts of the water and the samples of water it will be seen are selected from a variety of sources such as lakes rivers wells springs &e. [...] The first of the two following tables contains the results obtained from the analysis of the tank waters and the second the numbers obtained from the well waters.
history
Pages
50
Published in
India
SARF Document ID
sarf.120250
Segment Pages Author Actions
VIII.—On the Past and present water Supplies of Calcutta.—By Alexander Pedler F.I.C. F.C.S. London and Berlin
85-130 The Natural History Secretary view
IX.—On the Zoological Position of the Bharal or Bluc-Sheep of Tibet.—By R.Lydekker B. A.
131-133 The Natural History Secretary view
X.—Description of a new Species of Diurnal Lepidoptera belonging to the Genus Hebomoia.—By J. Wood-Masoy
134-134 The Natural History Secretary view

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