ALTER : RAIXF.AXL AND SUN-SPOT PERIODS. 



75 



SUPPLEMENTARY TABLE No. 2.— Showing total monthly and annual rainfall recorded at 

 Khartoum (Gordon College) and the normal for 1899-1920 in mm. 



Note. — "Drops" indicate that rain was too small to measure. Brackets [ ] are used to denote that the 

 observations are incomplete. 



SUPPLEMENTARY T.\BLE No. 3.— Showing total monthly and annual rainfall recorded at 

 .\dis .\baba and the normal for 1898-1920 in mm. 



Note. — "Drops" indicate that rain was too small to measure. Brackets [ ] are used to denote that the 

 observations are incomplete. 



