WHOLE VOL. NOTES. AFRICA I5 



of the most reliable records. The symbols against 

 these values indicate the method of computation, as 

 follows : 

 * ^ [max. + (9'' + correction c) |. 

 t -1(9'' + 15'') + correction a. 



$ -J- [min.+ (15'' + correction b) | or ^ [min.-f ( 17''+ correc- 

 tion b')]. 

 § 9'^ + correction d. 

 Precipitation. 



Authorities : As for Temperature vvitli the addition of 1889-1890 

 from a sheet of rainfall values ])rinted in Sierra 

 Leone (see below). 

 Notes: * The manuscript returns for the year 1882 show an ex- 

 traordinarily small total for the year of 33.13 in. 

 A sheet printed in Sierra Leone in 1904, giving- 

 the monthly totals for the period 1882 to 1903. 

 gives the annual total as 107.17 in. and the figures 

 given by this sheet have been adojjted. bor subse- 

 quent years this sheet is in good agreement with 

 the manuscript except for occasional arithmetical 

 errors. According to the Sierra Leone " Ofificial 

 Gazette " the annual rainfall in 1882 was 1 10.58 in., 

 but the figures from this source for the years 1881 

 and 1883 arc erroneous. 



Table A. — Corrections Applied for Rcdmlion of Pressure to 

 Mean of 24 Hours. Imlies. 



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



A (9'> + 1, "•)•>) +.003 +.001 .000 .000 —.002 —.004 - .OO.'i - .001 .oui 1.002 4 .004 +.001 



ks'' + 17'') +.001 +.002 +.002 +.002 +.002 +.002 .000 .000 .000 +.001 +.002 +.001 



9^ —.044 —.0.38 —.040 —.041 —.035 —.033 —.039 —.037 —.038 -.037 —.037 —.038 



Table R. — Corrections Applied to Nediice to Staiioti Level Pressure 

 Prum M. S. P. Jnehes. 

 — .23G — 23,'-. —.235 -.235 —.235 —.230 —.237 —.237 —.237 — .23fi —.230 —.236 



Table C. — Corrections .Ipplied to Temperalure "P. 



Jan. Ki'l). Mar. .\pi'. May .lurn- July Au^. Sept. Ort. Nov. Dec. 

 J (9" + 15'') (o 



KM + ni) a. —1.7 1.9 -2.5 2.9 —2.7 2.1 —1.5 —1.3 1.5 1.7 —1.8 —1.7 



15'' to Max. b. +4.0 -14.0 t^.O + 4.G +4.4 14.2 +4.0 +4.0 +4.2 +4.4 +4.0 +4.0 



17'' to Max. b'. +8.1 19.0 4 9.0 + 9.1 -1-8.1 17.0 +0.3 +0.2 +0.5 10.9 +7.3 +7.S 



9'' to Min. c. —7.9 -8.5 --9.G —10.3 - 9.9 • 8.5 —7.1 —0.0 —7.1 - 7.9 -8.2 —8.0 



9''to J(M-1 III) (1. +0.4 -0.3 —2.0 — 2.4 -1.9 -1.2 -O.G —0.7 0.5 -0.2 -0.2 - 0.2 



