Appendix B. 



The position of Ibanda, a place lying bstween Bajoiigolo and Fort Portal, 

 was determined both on going and returning. From four meridian altitudes 

 {Obs. Nos. 27, 65, 66, and 67), we obtained for this point the latitude 

 = 0° 19' 59" N., and from this were deducsd the following longitudinal 

 values : — 



On the outward journey : 



Ibanda Obs. No. 28 A = 2'' 0" 4-t'-0 E.G. 



.. 29 „= 43-1 „ 



On the return journey : 



Ibanda. — Obs. Nt>. 



Mean „ = 2" 0"" 42'- 8 „ 



Such is the agreement between these two results that we may even 

 disregard all considerations as to the weights to be adopted for the values 

 ■obtained, whether as regards the number of concurrent observations, or the 

 length of time during which Greenwich time had to be conveyed. In this 

 case there intervened 22 days for the determination of longitude on going 

 (that is, Greenw^ich time was conveyed for 22 days), compared with a mean of 

 about 5 days of conveyance for the determination madj on our return. 



Moreover, given the degree of accuracy that may be required, allowing 

 for the available means and the limited time at the disposal of the expedition, 

 we found it advisable to adopt as the value of the longitude of Ibanda the 

 mean of the two results, namely : 



Ibanda A = 2i' 0'" 43^-2 E.G. 



In the district between Entebbe and Port Poi'tal there are two other points 

 which offered the same conditions, and which consecjuently contributed to 

 supply means of control. For Kichiomi, which is one of these two points, we 

 ol)tained by the observation of a meridian altitude both going and returning 

 <Obs. Nos. ] and 99) the following result : 



Kichiomi = 31' 20" N. 



Adopting this value for the calculation of longitude we oljtained on going : 

 Kichiomi.— Obs. No. 11 \ = 2'' 4"' 27^- 3 E.G. 



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