Chock full of ethnographical information about the Muslims of Somalia, Richard Burton's "First Footsteps in Africa" is a great look at a white man's first forays into that area of the continent. (Goodreads)
Sir Richard Francis Burton KCMG FRGS (19 March 1821 – 20 October 1890) was a British explorer, geographer, translator, writer, soldier, orientalist, cartographer, ethnologist, spy, linguist, poet, fencer, and diplomat. He was famed for his travels and explorations in Asia, Africa and the Americas, as well as his extraordinary knowledge of languages and cultures. According to one count, he spoke 29 European, Asian and African languages. (Wikipedia)