=========+==================+==================+================== Month | 1877-78 | 1878-79 | MEAN OF | MINIMUM YEAR | MAXIMUM YEAR | 20 YEARS +-----+-----+------+-----+-----+------+-----+-----+------ | Blue| As- |Cairo.| Blue| As- |Cairo.| Blue| As- |Cairo. | Nile|suân.| | Nile|suân.| | Nile|suân.| | at | | | at | | | at | | |Khar-| | |Khar-| | |Khar-| | |toum.| | |toum.| | |toum.| | ---------+-----+-----+------+-----+-----+------+-----+-----+------ June | 1000| 800| 600 | 1000| 500| 250 | 1000| 750| 500 July | 2800| 2400| 1100 | 3500| 2000| 900 | 2800| 2200| 1100 August | 5300| 5600| 3900 | 8200| 7900| 5200 | 7000| 7900| 5300 September| 4700| 5900| 4400 |12500|12100| 8600 | 8500| 9200| 7200 October | 2500| 4000| 3900 | 8000| 9300|10300 | 4500| 6000| 6900 November | ..| 2400| 2550 | ..| 4700| 6500 | ..| 3300| 3700 December | ..| 1500| 1600 | ..| 3200| 3600 | ..| 2200| 2300 January | ..| 1200| 1300 | ..| 2400| 2600 | ..| 1600| 1600 February | ..| 800| 800 | ..| 2100| 2100 | ..| 1200| 1200 March | ..| 600| 550 | ..| 1900| 1900 | ..| 850| 800 April | ..| 500| 400 | ..| 1600| 1600 | ..| 700| 620 May | ..| 400| 300 | ..| 1500| 1500 | ..| 600| 520 ---------+-----+-----+------+-----+-----+------+-----+-----+------ Mean | ..| 2175| 1783 | ..| 4100| 3754 | ..| 3041| 2645 ---------+-----+-----+------+-----+-----+------+-----+-----+------ NOTE.--The very high discharges at Assuân and Cairo in April and May 1879; the minimum discharge of that year was about 1500 cubic metres per second. There has never been any discharge like that since. Appendix J. DISCHARGE TABLES OF THE DIFFERENT GAUGES OF THE NILE AND ITS TRIBUTAIRIES. TABLE XXVII.--_Discharges table of the Victoria Nile at the Ripon Falls._