John Hanning Speke questions about the height and extent of the lake could not be answered easily. Speke's eyes were still bothering him and he only saw a small part of the southern end of the lake and his view was blocked by islands in the lake so he could not judge the size of the lake well. However, Speke did estimate the elevation of Lake Victoria at 4000 feet by observing the temperature at which water boiled at that level. (This lake's being substantially higher than Lake Tanganyika did make it a more likely candidate for the source of the Nile.) From
John Hanning Speke with Burton going to Harrar, Abyssinia, and Speke going to Wadi Nogal in Somaliland . During this trip Speke experienced trouble with the local guide who cheated him and after they returned to Aden, Burton who had also returned, saw that the guide was punished and jailed and killed. This incident probably led to larger troubles later on. Now all 4 men traveled to Berbera on the coast of Somaliland from where they wanted to trek inland towards the Ogaden. While camped outside Berbera they were attacked at night by 200 spear wielding Somalis. During this fracas Speke ducked under