﻿338 
  A. 
  T. 
  STANTON. 
  

  

  There 
  is 
  a 
  quarantine 
  anchorage 
  down 
  river 
  from 
  Canton, 
  but 
  there 
  are 
  no 
  

   buildings 
  or 
  staff 
  to 
  deal 
  with 
  infected 
  ships. 
  The 
  Medical 
  Officer 
  of 
  Health, 
  

   Shameen, 
  has 
  assigned 
  to 
  him 
  by 
  the 
  Chinese 
  Customs 
  Department 
  some 
  duties 
  

   in 
  connexion 
  with 
  quarantine 
  matters, 
  but 
  these 
  duties 
  appear 
  to 
  be 
  ill-defined. 
  

  

  Mosquitos. 
  

  

  (A). 
  Adult 
  mosquitos 
  taken 
  in 
  houses 
  : 
  — 
  Culex 
  fatigans, 
  C. 
  sitiens, 
  Armigeres 
  

   obturbans, 
  Stegomyia 
  albopicta 
  (scutellaris), 
  Anopheles 
  sinensis. 
  

  

  (B). 
  Larvae 
  from 
  artificial 
  collections 
  of 
  water 
  : 
  — 
  Culex 
  fatigans, 
  Stegomyia 
  

   albopicta 
  (scutellaris), 
  Armigeres 
  obturbans. 
  

  

  (C). 
  Larvae 
  from 
  natural 
  collections 
  of 
  water 
  : 
  — 
  0. 
  fatigans. 
  

  

  The 
  weather 
  conditions 
  were 
  unfavourable 
  for 
  the 
  development 
  of 
  mosquitos 
  

   during 
  the 
  time 
  of 
  my 
  visit. 
  No 
  Stegomyia 
  fasciata, 
  either 
  larvae 
  or 
  adults, 
  were 
  

   found. 
  S. 
  albopicta 
  larvae 
  were 
  present 
  in 
  fair 
  numbers 
  in 
  jars 
  both 
  within 
  and 
  

   without 
  the 
  city, 
  but 
  their 
  development 
  was 
  slow. 
  Larvae 
  of 
  this 
  species 
  taken 
  

   at 
  Canton 
  on 
  13th 
  December 
  1915, 
  which 
  were 
  apparently 
  then 
  half-grown, 
  

   transformed 
  to 
  pupae 
  on 
  6th 
  January 
  1916 
  in 
  Kuala 
  Lumpur 
  and 
  a 
  few 
  adults 
  

   hatched 
  out 
  8th- 
  10th 
  January 
  1916. 
  

  

  Since 
  my 
  visit 
  I 
  have 
  had 
  sent 
  to 
  me 
  collections 
  of 
  mosquitos 
  taken 
  in 
  Canton 
  

   during 
  the 
  month 
  of 
  March. 
  Among 
  these 
  were 
  no 
  specimens 
  of 
  Stegomyia. 
  

  

  Batavia. 
  

  

  Batavia. 
  the 
  principal 
  city 
  in 
  West 
  Java, 
  is 
  situated 
  on 
  the 
  Bay 
  of 
  Batavia 
  in 
  

   latitude 
  6° 
  7' 
  South 
  and 
  longitude 
  106° 
  48' 
  East. 
  It 
  is 
  a 
  long 
  narrow 
  city 
  extending 
  

   along 
  the 
  banks 
  of 
  the 
  river 
  Tjiliwong 
  and 
  comprises 
  the 
  port 
  (Tandjong 
  Priok), 
  

   the 
  old 
  town 
  (Batavia), 
  and 
  the 
  new 
  town 
  (Weltevreden). 
  The 
  population 
  is 
  

   about 
  138,000. 
  

  

  Trade. 
  — 
  Batavia 
  has 
  extensive 
  trade 
  relations 
  with 
  all 
  the 
  neighbouring 
  ports 
  

   and 
  is 
  the 
  point 
  of 
  departure 
  for 
  lines 
  of 
  steamers 
  to 
  Australia, 
  Europe, 
  America 
  

   (by 
  way 
  of 
  the 
  Philippine 
  Islands) 
  and 
  Japan. 
  

  

  Temperature 
  and 
  Rainfall. 
  — 
  The 
  annual 
  mean 
  temperature 
  is 
  about 
  79°F. 
  The 
  

   temperature 
  is 
  nearly 
  the 
  same 
  throughout 
  the 
  year, 
  the 
  greatest 
  difference 
  

   between 
  the 
  highest 
  and 
  lowest 
  monthly 
  mean 
  being 
  only 
  about 
  2°. 
  The 
  annual 
  

   mean 
  rainfall 
  is 
  71 
  inches, 
  October 
  to 
  April 
  being 
  the 
  wet 
  months. 
  

  

  Water 
  Supply. 
  — 
  The 
  public 
  water 
  supply 
  is 
  drawn 
  from 
  artesian 
  wells 
  and 
  is 
  

   distributed 
  throughout 
  the 
  city 
  by 
  means 
  of 
  pipes 
  to 
  hydrants 
  and 
  private 
  houses. 
  

   From 
  the 
  hydrants 
  water 
  is 
  carried 
  in 
  tins 
  to 
  the 
  houses 
  in 
  the 
  native 
  quarters 
  

   and 
  £3 
  there 
  stored 
  in 
  earthenware 
  jars. 
  There 
  are 
  also 
  large 
  numbers 
  of 
  open 
  

   wells. 
  

  

  A 
  scheme 
  for 
  a 
  constant 
  high 
  pressure 
  supply 
  of 
  water 
  from 
  the 
  hills 
  has 
  been 
  

   under 
  consideration 
  for 
  some 
  years. 
  

  

  Sanitation 
  and 
  Quarantine. 
  — 
  Special 
  officers 
  devote 
  their 
  whole 
  time 
  to 
  sanitary 
  

   work 
  and 
  important 
  progress 
  has 
  been 
  made 
  during 
  recent 
  years 
  in 
  improving 
  

   the 
  condition 
  of 
  the 
  native 
  quarters 
  of 
  the 
  city. 
  

  

  