Going right up to the present day, and including both natural and man-made features, it demonstrates the sometimes subtle, sometimes radical ways in which people, flora, fauna, climate, soils, and other physical conditions have played a role in shaping the landscape. "...quirky and rewarding...full of answers to questions that others have not had the wit to ask."--Economist. "One thing is certain: no one would be wise to write further on our natural history...without thinking very hard about what is contained in these authoritative pages."--Country Life.

    Johnson takes us to those times when the world seemed filled with mysterious forces, when scientists were dazzled by light, by electricity, and by the beating of the hearts they laid bare on the dissecting table. We see Galileo singing to mark time as he measures the pull of gravity, and Newton carefully inserting a needle behind his eye to learn how light causes vibrations in the retina. William Harvey ties a tourniquet around his arm and watches his arteries throb above and his veins bulge below, proving that blood circulates. Luigi Galvani sparks electrical currents in dissected frog legs, wondering at the twitching muscle fibers, and Ivan Pavlov makes his now-famous dogs salivate at ascending chord progressions.For all of them, diligence was rewarded. In an instant, confusion was swept aside and something new about nature leaped into view. In bringing us these stories, Johnson restores some of the romance to science, reminding us of the existential excitement of a single soul staring down the unknown.