Pulitzer Prize–winning science journalist Blum (Ghost Hunters) makes chemistry come alive in her enthralling account of two forensic pioneers in early 20th-century New York. Blum follows the often unglamorous but monumentally important careers of Dr. Charles Norris, Manhattan’s first trained chief medical examiner, and Alexander Gettler, its first toxicologist. Moving chronologically from Norris’s appointment in 1918 through his death in 1936, Blum cleverly divides her narrative by poison, providing not only a puzzling case for each noxious substance but the ingenious methods devised by the medical examiner’s office to detect them.
Before the advent of forensic toxicology, which made it possible for the first time to identify poisons in corpses, Gettler learned the telltale signs of everything from cyanide (it leaves a corrosive trail in the digestive system) to the bright pink flush that signals carbon monoxide poisoning. In a particularly illuminating section, Blum examines the dangers of bootleg liquor (commonly known as wood, or methyl, alcohol) produced during Prohibition. With the pacing and rich characterization of a first-rate suspense novelist, Blum makes science accessible and fascinating.