The altitudes measured by me have been examined, and the thermometer
that I used had been tested at Kew, and its errors corrected since my
return to England; thus all altitudes observed with that thermometer
should be correct, as the results, after correction by Mr. Dunkin, of
the Greenwich Royal Observatory, are those now quoted. It will therefore
be interesting to compare the observations taken at the various points
on the Nile and Albert lake in the countries of Unyoro and Chopi--the
correctness of which relatively will be seen by comparison:--
1861.
Jan. 22. Rionga's island, 80 feet above the Nile . . . 3,864
Jan. 25. Karuma, below the falls, river level Atadaj. . 3,996
Jan. 31. South of Karuma, river level on road to M'rooli 4,056
1864.
Feb. 21. M'rooli lat. 1 degree 38' river level . . . . . . 4,061Ft.
Mar. 14. Albert N'yanza, lake level . . . . . . . . . . . 2,720Ft.
April 7. Island of Patooan (Shooa Moru) river level. . . . 3,195Ft.
By these observations it will be seen that from M'rooli, in lat. 1
degree 38' to Karuma in lat. 2 degree 15', there is a fall of sixty-
five feet; say MINUS five feet, for the Karuma Falls equals sixty feet
fall in 37' of latitude; or allowing for the great bend of the river,
twenty miles of extra course, it will be equal to about sixty statute
miles of actual river from M'rooli to Atada or Karuma Falls, showing a
fall or one foot per mile.
Pages:
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545