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.
NAT is short for Network Address Translation. NAT is an Internet standard that enables a local-area network (LAN) to use one set of IP addresses for internal traffic and a second set of addresses for external traffic.