“I then ordered my brain to find a response, and quickly. It worked and worked faster. I felt the pulses throb in my head and temples; but for nearly an hour it worked in chaos, and no result came of its efforts. Feverish, with vain labour, I got up and took a turn in the room, undrew the curtain, noted a star or two, shivered with cold, and again crept to bed.

A kind fairy in my absence had surely dropped the required suggestion on my pillow, for as I lay down it came quietly and naturally to my mind.”