An Imperfect Lens

Acclaimed author Anne Roiphe evokes the sights and sounds of 1880s Alexandria, Egypt, a bustling center of trade and travel. From teeming docks to overflowing market stalls, from grand homes to grimy narrow alleyways, cholera microbes rise and bob in streams of water and tiny droplets, clinging to moisture as man clings to air. With a keen mind and dedication to his work, young Louis Thuillier has impressed his mentor—famed scientist Louis Pasteur—enough to be sent to Alexandria as one-third of