Mineral industry of Africa in 2005 from 16.1% in 2004. In 2005, the principal mineral targets in Africa were copper, diamond, gold, and platinum group metals (PGM). African countries that experienced the highest levels of exploration activity in 2005 were, in descending order based on the number of exploration sites as compiled by the USGS, South Africa, Burkina Faso, Ghana, and Zambia, but activity took place in a number of other countries. Gold accounted for approximately 51% of reported African exploration projects, diamond accounted for about 14%, copper and PGM each accounted for about 11%, and nickel accounted for 5%. Early stage projects accounted
Bibliography of Ulysses S. Grant his communications and annual messages to Congress are recommended readings. In May 2012, on the fiftieth anniversary of the founding of the Ulysses S. Grant Foundation, Mississippi State University was selected as the permanent location for Ulysses S. Grant's Presidential Library. Historian John Y. Simon edited Grant's letters into a 32-volume scholarly edition published by Southern Illinois University Press. Early biographers (and memoirs of close associates) Inaugural Addresses State of the Union Addresses Executive orders Proclamations Special Messages Civil Service Commission Civil Rights Act of 1875 Veto Messages Treaty of Washington 1871 Indian Appropriations Act 1871 Papers of Ulysses S.