WHOLE VOL. NOTES. AFRICA II 



1929 April-1930. Observations at gi h , 15^, and 2i| h , re- 

 duced to £(&i h +i4l h + 2oi h ) by the following 

 corrections : 



Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. 

 In. +.001 +.002 .000 -.001 —.002 -.003 -.003 -.002 +.001 +.001 +.002 +.002 



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

 45°) by applying a correction of —.043 in. 

 Temperature. 



Site: As for Pressure. 

 Hours: The values given are: 



1. The means of 24 hourly readings. 



2. The means between the mean daily maximum and the 



mean daily minimum. 

 Exposure: A large louvred screen was in use throughout the 

 period. 

 Precipitation. 



Site: As for Pressure. 



Instruments: From 1921-1928 June, observations were taken at 

 Kenilworth with an 8-inch gage at a height of 3 ft. 

 above the ground. 

 From 1928 July-December, observations were taken at the 



Observatory, Hull Street. 

 From 1 929- 1 930 observations were taken at Kenilworth close 



to Dr. Sutton's site. 

 Comparative observations show that the amounts collected 

 by these three gages are in close agreement. 



LAGOS, NIGERIA 

 Authorities. 



1921. Nigeria Government Gazettes. 



1922- 1930. Manuscript returns communicated by the Surveyor 

 General and filed in the Meteorological Office. 

 Pressure. 



Site: There were small changes of site on May 26, 1926, and 

 June 25, 1929. 

 1921-1926, May 25. South side of Broad Street. 

 1926, May 26-1929, June 24. Courtyard of Secretariat, 



facing lagoon. 

 1929, June 25-1930. Survey Department Offices. 

 The height of the barometer cistern above Mean Sea Level 

 was : 



1921-1926, May 25 15 ft. 



1926, May 26-1930 10 ft. 



