THE UNDERGROUND RAILROAD. By Colson Whitehead. 306 pp. Doubleday. $26.95. Colson Whiteheadâs novels are rebellious creatures: Each one of them goes to great lengths to break free of the last one, of its structure and language, of its areas of interest.
Natron is a naturally occurring mixture of sodium carbonate decahydrate (Na 2 C O 3 Â·10H 2 O, a kind of soda ash) and around 17% sodium bicarbonate (also called baking soda, NaHCO 3) along with small quantities of sodium chloride and sodium sulfate.
NNI may refer to: Network-to-network interface, used to interconnect signalling networks in telecommunications; Net national income, a term in economics; National Nanotechnology Initiative, a U.S. government cross-agency coordinating program; Ngagyur Nyingma Institute, a monastic college for Buddhist studies & research