( 90 ) 



Chimbete (June 3) and then per canoe up the river to N'Kutu. The 

 first transport by land, when the carriers were not yet accustomed 

 to their uncommon task, unfortunately caused a perturbation in 

 at least one of the two chronometers, which appeared from the com- 

 parisons between them. 



Also at N'Kutu I made a time determination on June 5, in order 

 to obtain another result for the longitude of that place. On June 6 

 we continued our journey by land often along very difficult roads 

 through woods and oxer hills and some times across small streams. 

 We first went to the north east as far as N'Vyellele, a village 28.5 

 kilometers north east of N'Kutu (June 7), and then we travelled to 

 the west during three daj'S until June 10, when we reached Buku- 

 Zan, a village on the Luali, a tributary river of the Loango. 



On June 13 and 14 we made an excursion from Buku-Zan to the 

 north to M'Pene Kakata, but the rest of the time until June 16 

 I stayed in the former place and availed myself of this opportunity 

 to determine its longitude and latitude. 



On June 16 we returned from Buku-Zan to N'Kutu. This time 

 we went directly to the south east, and after we had covered a 

 distance of 38 kilometers we arrived at N'Kutu on June 17. Thence 

 we returned by the way we had come via Chimbete and Mayili to 

 Chiloango (18 — 23 June). In the mean time I secured determinations 

 of latitude and longitude at Chimbete. 



3. Connection of </ great number of secondary points with the 

 astronomically determined station*, by means of compass directions and 

 distances. It was my intention to form by means of my astronomical 

 determinations a net of primary points with which I might connect 

 a great number of intermediate points whose relative positions I 

 had determined on many journeys by means of compass directions 

 and distances, in order thus to reach also for the latter a satisfactory 

 accuracy. In this I have partly succeeded, but for the southern part 

 of the district it is still necessary to make the astronomical deter- 

 mination of one and if possible 2 stations on the Lukula river, 

 Chipondi and perhaps Pouro, the more so as the preliminary result 

 of my secondary determination of the station Lemba on this river 

 differs much from that which Mr. Cabra had obtained some years 

 ago, when he determined the demarcation between the Freestate and 

 Portuguese Congo. 



1 shall try to fill up this gap. But the difficulties are especially 

 great in these parts, as the trypanosomosis has badly raged here 

 of late. At any rate it will be desirable to put off till later the 

 communication of my secondary determinations. 



