Franklin began reading in an even, expository tone of voice, frequently stopping to explain a point or when he skipped irrelevant passages. ‘This section,’ he said, ‘is headed “Biological Warfare Weapons and Defence.” This is how it goes on: ‘“Biological Warfare,”’ he read, ‘“is often referred to as bacteriological, bacterial, or germ warfare but it is preferred over those terms because it includes all micro-organisms, insects and other pests, and toxic products of plant and animal life. The Army lists five groups of B.W. agents, including certain chemical compounds used to inhibit or destroy plant growth: Micro-organisms (bacteria, viruses, rickettsiae, fungi, protozoa). Toxins (microbial, animal, plant). Vectors of disease (arthropods (insects and acarids), birds and animals). Pests (

