WHOLE VOL. NOTES. AFRICA 1 3 



SALISBURY, RHODESIA 



Authority. 



The Hydrographic Engineer, Department of Agriculture, Salis- 

 bury, Rhodesia. 

 Pressure. 



Site: 1921 January-August. Observations were taken at Salis- 

 bury Gaol at a height of 4845 ft. 

 192 1 September-1930. Observations were taken at the 

 Meteorological Office (old Native Hospital) at a 

 height of 4890 ft. 

 The heights previously quoted (Gaol 4825 ft., Meteorologi- 

 cal Office 4860 ft.) were derived from railway 

 levels. A resurvey of the area has shown that these 

 were incorrect. There has been no change in the 

 site since September 1921. 

 The observations from January- August 1921 have been re- 

 duced to a height of 4890 ft. by applying a correc- 

 tion of —.031 in. 

 Instruments: 1921 January-August. Fortin barometer M. O. 

 No. 1 33 1, with index error correction of +0.003 m - 

 1921 September-1928 November. Kew Pattern, with index 



error correction of +0.007 in. 

 1928 November-1930. Standard Fortin barometer. A cor- 

 rection for index error has been applied. 

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

 45°) by applying a correction of -0.055 in. There 

 may be some doubt as to the absolute accuracy 

 of the pressure record during the period in which 

 it was taken at the Gaol. 

 Temperature. 



Site: 192 1 -1923. Observations taken at the Salisbury Gaol. 



1924- 1 930. Observations taken at the Meteorological Office. 

 Exposure: Thermometers were exposed under a thatched shelter 

 in accordance with former Meteorological Office 

 recommendations for use in the Tropics. 



TUNIS, TUNISIA 



Authorities. 



1921-1926. Tunis, Service Meteorologique, Statistiques, Releve 



des observations. 

 1927-1930. Tunis, Service Meteorologique, Resume climat- 



ologique. 



