Formation and General Features of Ruwenzori. 
By far the most interesting altimetric observations are 
those which were taken by Lieutenant T. T. Behrens in 1903 
during the Anglo-German frontier delimitation. He then fixed 
trigonometrically the height of the two peaks which appeared 
to be the highest, as well as of four other points. It was, 
however, only after the publication of the Italian map that he 
was able to identify with certainty the position of these peaks, 
and hence to obtain all the data for an exact calculation of 
the altitudes on the basis of the angles taken. It is worth 
while to compare his results with those of H.R.H. 
Name of Peak. 
Height in Feet above the Level of the Sea. 
Lieut. T. T. Behrens. 
Trigonometric Value. 
E.E.H. 
Barometric Value. 
Difference, 
Trigonometric 
minus Barometric. 
Feet. 
Feet. 
Margherita 
16,619 
16,815 
- 196 
Alexandra 
16,543 
16,749 
-206 
Edward 
15,748 
15,988 
-240 
Vittorio Emanuele 
15,846 
16,080 
-234 
Umberto 
15,554 
15,798 
-244 
Iolanda 
15,258 
15,647 
-389 
This is not the place to discuss the relative value of the 
two series of numbers. In Appendix B, Prof. Omodei gives 
in extenso all the data of H.Ii.H.’s observations, and a critical 
expose of the methods adopted, and of the precautions taken 
in calculating' the altitudes. 
Dr. A. Roccati has written a detailed account of the geology 
and mineralogy of Ruwenzori, which is published in the volume 
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