﻿44 
  Transactions. 
  — 
  Miscellaneous. 
  

  

  cepted 
  from 
  the 
  low 
  aud 
  tliicldy 
  inhabited 
  district, 
  which 
  is 
  tide-locked 
  and 
  

   subject 
  to 
  floods. 
  The 
  storm- 
  waters 
  will 
  be 
  discharged 
  into 
  Deptford 
  Creek, 
  

   whilst 
  the 
  sewage 
  and 
  a 
  limited 
  quantity 
  of 
  rain 
  will 
  flow 
  by 
  four 
  iron 
  

   pipes 
  laid 
  under 
  its 
  bed, 
  each 
  3 
  feet 
  6 
  inches 
  in 
  diameter, 
  into 
  the 
  outfall 
  

   sewer." 
  * 
  

  

  Again: 
  "The 
  main 
  line 
  varies 
  in 
  size 
  from 
  4 
  feet 
  6 
  inches 
  by 
  3 
  feet 
  

   at 
  the 
  upj)er 
  end 
  to 
  10 
  feet 
  6 
  inches, 
  of 
  the 
  same 
  form 
  as 
  the 
  branch 
  by 
  the 
  

   side 
  of 
  which 
  it 
  is 
  constructed." 
  

  

  Again 
  : 
  " 
  The 
  falls 
  of 
  the 
  main 
  line 
  are 
  at 
  the 
  upper 
  end 
  53 
  feet, 
  26 
  

   feet, 
  and 
  9 
  feet 
  per 
  mile 
  to 
  the 
  Effra 
  sewer 
  at 
  the 
  Brixton 
  Koad, 
  and 
  

   thence 
  to 
  the 
  outlet, 
  2^ 
  feet 
  per 
  mile. 
  The 
  sewer 
  is 
  erected 
  in 
  brickwork, 
  

   varying 
  in 
  thickness 
  from 
  9 
  inches 
  to 
  22^ 
  inches, 
  that 
  forming 
  the 
  invert 
  

   being 
  in 
  Portland 
  cement, 
  and 
  the 
  remainder 
  in 
  blue 
  lias 
  mortar." 
  

  

  Again 
  : 
  " 
  The 
  low-level 
  sewer 
  does 
  not 
  follow 
  the 
  course 
  of 
  the 
  river 
  as 
  

   on 
  the 
  north 
  side 
  ; 
  but 
  commencing 
  at 
  Putney 
  it 
  takes 
  a 
  raore 
  dii'ect 
  line 
  

   through 
  the 
  low 
  ground 
  once 
  forming 
  the 
  bed 
  of 
  the 
  second 
  channel 
  of 
  the 
  

   Thames, 
  and 
  di-ains 
  Putney, 
  Battersea, 
  Nine 
  Elms, 
  Lambeth, 
  Newington, 
  

   Southwark, 
  Bermondsey, 
  Eotherhithe, 
  and 
  Deptford." 
  The 
  Engineer 
  

   adds 
  that 
  this 
  district 
  being 
  mostly 
  level 
  was 
  formerly 
  much 
  subject 
  to 
  

   be 
  overflown, 
  and 
  to 
  stagnation 
  of 
  waters, 
  causing 
  malaria, 
  so 
  much 
  so 
  that 
  

   "the 
  late 
  Mr. 
  E. 
  Stephenson 
  and 
  Sir 
  W. 
  Cubitt 
  forcibly 
  described 
  the 
  

   effect 
  of 
  artificial 
  draining 
  by 
  pumping 
  as 
  equivalent 
  to 
  raising 
  the 
  surface 
  

   to 
  the 
  height 
  of 
  20 
  feet. 
  The 
  low-level 
  sewer 
  has 
  in 
  fact 
  rendered 
  this 
  

   district 
  as 
  dry 
  and 
  as 
  healthy 
  as 
  any 
  portion 
  of 
  the 
  metropoHs." 
  

  

  Again: 
  "The 
  Deptford 
  pumping 
  station 
  is 
  situated 
  by 
  the 
  side 
  of 
  the 
  

   Deptford 
  Creek, 
  and 
  close 
  to 
  the 
  Greenwich 
  railway 
  station. 
  The 
  sewage 
  

   here 
  is 
  lifted 
  from 
  the 
  low-level 
  sewer 
  to 
  a 
  height 
  of 
  18 
  feet 
  into 
  the 
  outfall 
  

   sewer. 
  Four 
  expansive 
  condensing 
  rotative 
  beam 
  engines, 
  each 
  of 
  125 
  h.p., 
  

   and 
  capable 
  together 
  of 
  lifting 
  10,000 
  cubic 
  feet 
  of 
  sewage 
  per 
  minute 
  to 
  

   a 
  height 
  of 
  18 
  feet, 
  are 
  here 
  constructed." 
  

  

  Eelating 
  to 
  the 
  southern 
  outfall 
  sewer 
  : 
  " 
  The 
  large 
  volume 
  of 
  water 
  

   met 
  with 
  in 
  the 
  marshes 
  rendered 
  the 
  construction 
  of 
  that 
  portion 
  of 
  the 
  

   work 
  very 
  costly. 
  These 
  marshes 
  originally 
  formed 
  part 
  of 
  the 
  Thames, 
  

   and 
  were 
  first 
  enclosed, 
  in 
  the 
  reign 
  of 
  Edward 
  I., 
  by 
  the 
  monks 
  of 
  Lesnes 
  

   Abbey. 
  Two 
  thousand 
  acres 
  were 
  afterwards 
  flooded 
  by 
  the 
  bursting 
  of 
  

   the 
  river 
  banks 
  in 
  the 
  reign 
  of 
  Henry 
  VIII., 
  and 
  were 
  not 
  again 
  reclaimed 
  

   untn 
  the 
  reign 
  of 
  James 
  I." 
  

  

  Again 
  : 
  " 
  The 
  outfall 
  of 
  the 
  sewage 
  at 
  the 
  south 
  side 
  of 
  the 
  Thames 
  is 
  

   at 
  Crossness 
  reservoir 
  and 
  pumping 
  station. 
  The 
  sewage 
  is 
  discharged 
  into 
  

   the 
  river 
  at 
  the 
  time 
  of 
  high 
  water 
  only; 
  but 
  the 
  sewer 
  is 
  at 
  such 
  a 
  level 
  

  

  * 
  Written 
  in 
  1865. 
  

  

  