I. — Astronomic Observations. 



On the return : 



Kichiomi. — Obs. No. 100 \ = 2" 4" 26"' E.G. 



„ „ 101 „ 25-9 „ 



Mean \ = 2" 4" 26"- „ 



Here also the agreement between the two results is satisfactory, and for 

 the reasons already stated we retain as definite value the mean of the two 

 results, as under : 



Kichiomi \ = 2'' 4'" 26"- 7. 



An analogous process is taken for Muyongo, where the latitude 

 0=. 0' 30' 41" N. was obtained by two circunnueridians (Obs. Xos. 12 

 and 13) observed on going; introducing this value in the calculation of the 

 longitude, for which there are two series of altitudes on going and two on 

 returning, we get : 



Going : 



Misongc— Obs. No. 14 \ = 2'' S-" SG'^-.d E.G. 



„ 15 „ = 55*'' 8 ,, 



Returning : 



Misongo.— Ob.s. No. 97 \ = 2'' 3" .5.5^-4 E.G. 



98 „= .54-6 „ 



or taking the simple mean : 



Misongc X = 2'' 3™ SS''- 6 E.G. 



Thus we get a third test regarding the practical value of the daily 

 corrections adopted for the chronometer. 



And since the results of longitude were repeatedly concordant in a measure 

 greater than had lieen e.^pected, we may proceed to the calculation of the 

 elements of position for all the other points determined during the expedition, 

 being confident of incurring no serious errors. 



BujoiKjti (near Lake Isolt). — The latitude was obtained by a meriilian 

 altitude oliserved on the outward journey (Obs. No. 1), and the longitude 

 by two series of altitudes also on going (Obs. Nos. 2 and 3) : 



19th May = 0° 2.5' 44" N \ = 2" 4-" 5.3- 4 E.G. 



„ = 2 7 54-5 „ 



Bujongo = 0° 25' 44" N \ = 2'>7°'53-9 „ 



(Lake Isolt) ,, = 31-58' 28" „ 



319 



