The science of life : fully illustrated in tone and line and including many diagrams

BOOK 8

the vividness of imagery, and could be used successfully on children who suffered from violent nightmares.

Such studies are likely to throw a good deal of light on human faculty, for we know the chemical constitution of the drugs and can use them in accurate experiments. As knowledge progresses, we shall be able to classify the differences of humanity with increasing accuracy. We shall presumably find that individuals may differ in regard

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THE SCIENCE OF LIFE

CHAPTER 7

to many separate qualities; and in each quality there will be a scale from high to low, plus to minus.

It is not only that these drugs illuminate our capabilities. A time will come when they may be used to assist and enhance them. A time may come when we shall be able to supplement our normal menial powers with chemical assistance as nowadays we supplement our muscular forces with power machinery.