Formation and General Features of Euwenzoii. 



By far the most interesting altimetric observations are 

 tlmse which were taken by Lieutenant T. T. Belirens 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 tlie publication of the Italian map that he 

 was able to identify witli 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.Ii.H. 



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.R.H.'s observations, and a critical 

 expose of the methods adopted, and of the precautions taken 

 in calculatinp' the altitudes. 



Dr. A. Roccati has written a detailed account of the geology 

 and mineralogv of Ruwenzori, which is published in the volume 



221 



