[ I So  ] 
XII.  A Meteorological  Diary , See.  kept  at  Fort  St.  George 
in  the  Eaft  Indies.  By  Mr.  William  Roxburgh,  AJJif- 
tant-furgeon  to  the  Hofpital  at  the  J, 'aid  Fort.  Commu- 
nicated by  Sir  John  Pringle,  Bart.  P.  R.  S. 
Read  Jan.  29,  rTT"'  H E manner  in  which  I keep  my  me- 
X 7 7 7 • 8 
teorological  obfervations  is  as  follows : 
A thermometer  without  doors;  a barometer  and  ther- 
mometer within  doors : the  barometer  and  thermometer 
within  doors  are  kept  dole  together,  for  the  fake  of  cor- 
reding  the  barometer  if  required.  I obferve  them  three 
times  a day,  as  per  diary.  I alfo  fet  down  the  direction 
and  ftrength  of  the  wind,  and  the  Rate  of  the  weather. 
I diftinguifh  four  degrees  of  ftrength  of  the  wind; 
namely,  gentle,  brifk,  ftormy,  and  what  we  call  a tufoon 
in  India,  which  you  will  find  marked  with  the  numbers 
1,  2,  3,  and  4,  befides  no  fenfible  wind,  wrhich  is  marked 
with  a cypher. 
I am  afhamed  to  fay,  that  the  rain-gage  I had  during 
the  rainy  feafon  was  fo  indifferent,  that  I could  not  with 
any  degree  of  certainty  meafure  the  quantity  of  rain  that 
fell 
