Essays of a Biologist

Synopsis

The biologist cannot fail to be impressed by the fact that his science to-day is, roughly and broadly speaking, in the position which Chemistry and Physics occupied a century ago. It is beginning to reach down from observation to experimental analysis, and from experimental analysis to grasp of principle. Furthermore, as the grasp of principles in physico-chemical science led speedily to an immense new extension both of knowledge and of control, so it is not to be doubted that like effects will spring from like causes in biology.

But whereas the extension of control in physics and chemistry led to a multiplication of the number of things which man could do and experience, the extension of control in biology will inter alia mean an alteration of the modes of man’s experience itself. The one, that is to say, remained in essence a quantitative change so far as concerns the real life of man; the other can be a qualitative change. Applied physics and chemistry bring more grist to the mill; applied biology will also be capable of changing the mill itself.

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