Velocities, 14, 33, 45, 49, 121 Victoria, Lake, 11, 12, 14, 17, 18, 26 ---- ---- discharge table, 143 ---- ---- gauges, 167 ---- ---- tributaries, 28 Victoria Nile, 12, 14, 15, 22, 28, 130, 139, 140, 141 ---- ---- discharge table, 143 ---- ---- gauges, 167 ---- ---- distances, 127 ---- ---- slopes, 120 ---- ---- tributaries, 29 ---- ---- velocities, 121 Vœlcker, Dr., 64 W Wadelai, 16, 31, 90, 139-141 ---- discharge table, 144 ---- gauges, 168 Wad Medani, 20, 44, 136, 137, 215 ---- ---- discharge table, 147 ---- ---- gauges, 179-182 Wady Halfa, 14, 15, 48, 139-141 Wadi Halfa discharge table, 151 Wady Natrûn, 115 Wady Rayan, 74, 76, 77, 80, 81, 85, 87, 88 Water, Analysis of, 62, 63, 67 Watersheds, 16 Webb, Mr. A., 89 Weeds, 29 Wells, 108 Werne, M., 38 Western, Lt.-Col. J. H., 74, 77 White Nile, 12, 13, 15, 16, 18, 19, 23, 32, 36, 38, 41, 43, 46, 56, 60, 61, 84, 119, 129, 134, 135, 139-141 ---- ---- distances on 126 ---- ---- discharge tables, 146 ---- ---- gauges, 177, 178 ---- ---- slope, 120 ---- ---- velocities, 121 Whitehouse, Commander, 26 Whitehouse, Mr. Cope, 74 Winds, 19, 20, 27, 214-220 Y Yei river, 34 Z Zeraf river, 13, 33, 34, 36-40, 84, 92, 94, 129, 133 ---- discharges, 36, 133 Transcriber’s Notes Inconsistent, archaic and unusual transcriptions, spelling, hyphenation, punctuation, use of accents, etc. (including in names) and repeated information have been retained (even when occurring on the same page or in the same sentence), except as mentioned below. The use of periods, mid-level decimal points and commas in numbers has not been standardised. Plate II: the data as mentioned in the errata have not been corrected in the Plate. Page 51-52, table, last column: 199 and 1877 are not in the range of years under consideration. Page 97, table header: the years are out of order, possibly erroneously. Page 203: the table header does not appear to agree with the contents; presumably, the first group of rows refers to 1876. Page 209, column Pic 16, row 14: 4·11 does not fit with the other data and may be an error for 8·11 In the source document, the Plates are not always printed in numerical order (see also the List of Plates), this has not been changed. Unless mentioned below under “Changes Made”, all (tabulated or text) data and calculations are presented as printed in the source document, even when there are obvious errors or inconsistencies in these data or calculations. Changes made