whole vol. notes. africa 5 



Temperature. 



Site: As for Pressure. 



Hours: The standard adopted is the mean of 24 hours. In 1921- 

 1922 and 1925-1930 the observations were taken 

 trihourly and the mean is accepted as the 24-hour 

 mean. In 1923- 1924 observations were taken at 

 7 h , 13 11 , and i8 h , and the means of ^(7 h + r 3 h + i8 b ) 

 are corrected to the mean of the 24 hours by apply- 

 ing the following correction : 



BULAWAYO, RHODESIA 



Authority. 



Manuscript returns filed in the Meteorological Office, London. 

 Pressure. 



Site: Observations were taken at the Observatory at a height of 

 4426 ft. The height previously quoted (4440 ft.) 

 was derived from railway levels. A recent resur- 

 vey has shown that this was 14 ft. too high. 

 During 1929, July and August, the observations were 

 taken at a point 1 to 2 miles distant at an altitude 

 of 4445 ft. The instruments were returned to the 

 Observatory at the end of August. 



Instrument: Kew Pattern. An index error correction of +.025 

 in. has been applied throughout. The correction of 

 + .014 in. formerly applied has been found to be 

 incorrect. 



Hours: 8 h corrected to 9 11 by correction given in World Weather 

 Records, Smithsonian Misc. Coll., vol. 79, page 7. 



Notes: All values have been corrected to normal gravity (Lat. 

 45 ) by applying a correction of —.058 in. 

 1897-1923: A correction of —.006 in. should be applied 

 to all readings of pressure for Bulawayo in the 

 first series of World Weather Records (Smith- 

 sonian Misc. Coll., vol. 79, p. 144). 

 Temperature. 



Site: As for Pressure. 



Exposure: The thermometers were exposed in a large-sized 

 Stevenson screen, together with the autographic 

 instruments. 

 In July and August 1929 observations were made in a small- 

 sized Stevenson screen. 



