After hearing that native Congolese forced laborers were severing vines instead of tapping them as ordered, he wrote to one of his subordinates: "Decidedly these people of [Inongo] are a bad lot.

[2] By 1891 the Zanzibari slavers had control of the entire western shore of the lake, apart from the region defended by Joubert around Mpala and St Louis de Mrumbi.

[4] When the Jacques expedition arrived Joubert's garrison was down to about two hundred men, poorly armed with "a most miscellaneous assortment of chassepots, Remingtons and muzzle-loaders, without suitable cartridges".

[8] On 3 January 1892, captain Jacques' anti-slavery expedition founded the fortress of Albertville on the shores of Lake Tanganyika, and tried to put an end to the slave trade in the region.

Eventually Rumaliza's forces had to retreat because of the arrival of the Long-Duvivier-Demol Anti-Slavery expedition, a relief column sent from Brussels at captain Jacques's aide.