The unfortunate victim will begin the day under the shadow of doubt. Before it is yet noon, he will be obsessed with the idea that the coming night will not bring him sleep. Behind every thought, will lurk the fear that the hours of darkness must be spent in restless tossing. He will become haggard of face, wandering in attention, impatient in manner, hesitating in speech and bungling in mind. (p. 6)
Damiens, who attempted the assassination of Louis XV of France, and who was sentenced to be torn to pieces by four horses, was for an hour and a half before his execution subjected to the most infamous tortures, with red-hot pincers, melted lead, burning sulphur, boiling oil, and other diabolical contrivances, yet he slept on the rack, and it was only by continually changing the mode of torture, so as to give a new sensation, that he was kept awake. He complained, just before his death, that the deprivation of sleep was the greatest of all his torments. (p. 15)