INSIDE AFRICA (952 pp.)John GuntherHarper ($6).
THE AFRICAN GIANT (400 pp.)Stuart CloeteHoughton Mifflin ($4).
These are reports on two important literary safaris into the grimly awakening Dark Continent. Novelist Stuart Cloete (rhymes with booty), a Boer South African with several excellent books to his name,* started out in Cape Town and crossed the Equator eight times in one year. U.S. Journalist John Gunther, who is running out of continents to get inside of (he has been Inside Europe, Asia, Latin America and the U.S.A.}, started in Morocco and toured Africa from "stem to stern,...