In this note are contained the relations 
and calculations of the astronomic, 
meteorological and geodetic observations 
which H.R.H. the Dnke of the Abruzzi 
was able to carry out on the route from 
Entebbe to Bujongolo, and during the 
exploration of the Ruwenzori Range. 
The calculations relating to these 
observations, as well as the construction 
and plan of the topographic maps 
accompanying the present volume were 
executed at the Hydrographic Institute 
of the Royal Navy at Genoa. 
The way by which the astronomic 
and meteorological observations were made, from which were obtained the 
positions and altitudes of the various points indicated on the maps, as well as 
the methods of calculation employed, are all embodied in the accompanying 
special reports drawn up through the care of the Director of the said Institute, 
Mattia Giavotto, Captain of frigate, the sections dealing with the meteorology 
and the astronomic observations being prepared by Prof. Omodei and the 
“ Capo-Tecnico ” Sig. P. Campigli respectively. 
305 
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