At head of title: Paul De Kruif."First edition." Prologue.--Three doctors: Semmelweis, saver of mothers. Banting, who found insulin. Minot, against death.--Red brick building on the hill: Spencer, in the happy valley. Evans, death in milk. McCoy, should generals die in bed?--Machine medicine: Schaudinn, the pale horror. Bordet, prophet of doom. Wagner-Jauregg, the friendly fever.--Old doctor sun: Finsen, the light hunter. Rollier, the sun doctor. Strandberg, machine sunlight.--Epilogue.