…have been made in modern psychological and medical laboratories with what is called limited environment. For example, people like Hebert McGill and Dr. Lilly at the National Institute of Health in Washington have employed various means for cutting down the…

…enough and the stimuli are sufficiently reduced, produce very remarkable visions. Long experiments have been made in this field by Hebert McGill and by Lilly at the National Institute of Health in Washington in what they call limited environment. And it is…