puerile mummeries of the theatre! And in the same way, we are not ashamed to be ignorant of the structure of our body, of the way in which the bones and muscles, grow, how the blood circulates and is rendered impure, how we are affected by evil thoughts and passions, how our mind travels over illimitable spaces and times while the body is at rest, and so on. There is nothing so closely connected with us as our body, but there is also nothing perhaps of which our ignorance is so profound, or our indifference so complete.
It is the duty of every one of us to get over this indifference. Everyone should regard it as his bounden duty to know something of the fundamental facts concerning his body. This kind of instruction should indeed be made compulsory in our schools. At present, we know not how to deal with the most ordinary scalds and wounds; we are helpless if a thorn runs into our foot; we are beside ourselves with fright and dismay if we are bitten by an ordinary snake! Indeed, if we consider the depth of our ignorance in such matters, we shall have to hang down our heads in shame. To assert that the average man cannot be expected to know these things is simply absurd. The following pages are intended for such as are willing to learn.
I do not pretend that the facts mentioned by me have not been said before. But my readers will
