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A nerve-centre, even of the lowest kind, once moulded by repeated acts, retains their impression i.e. remembers them. Learning to walk is, as was shown in the last paper, training the memory of the lower nerve-centres at the base of the brain until at last they direct the movements of walking without aid from consciousness. The musician studies a piece of music.
Not every muscle only, but every nerve and nerve-centre, every blood-vessel, every viscus, and nearly every bone, may be increased or decreased by its influence.
"Somewhere inside our brains must be a nerve-centre which co-ordinates most of our mental, our sensory and motor processes, in such a manner as to produce consciousness, volition, what we call personality. But after all there are always plenty of activities within us going on independent of it. Your heart beats, your stomach digests even your memory works apart from your consciousness sometimes.
Nature's experiments are not in vain; her progress is very slow but sure. But hydra has also the promise of better things, traces of muscular and nervous tissue. There are still no compact muscles, like our own, much less ganglion or brain or nerve-centre of individuality. The tissues are diffuse, but they are the materials out of which the organs of higher animals will crystallize, so to speak.
Men popped in and out of the subway entrances like rabbits. It was a stirring, bustling scene, typical of this nerve-centre of New York's vast body. Jimmy Crocker, standing in the doorway, watched the throngs enviously.
And so I should hope that we may proceed in this debate without any acute divergences becoming revealed. I am in a position to-day only to announce the decision to which the Government have come with respect to the Transvaal. The case of the Transvaal is urgent. It is the nerve-centre of South Africa.
When the truth concerning fear is thoroughly mastered, through spiritual insight into the immortal, fearless life, then this force is perfectly controlled; there is no more fear, just as, through the control of the psychic power which works through the nerve-centre in the throat, there comes a cessation of "hunger and thirst."
The disadvantages are these: the amputated abdomen, though more tractable than the entire Bee, is still far from satisfying my wishes. It gives capricious starts and unexpected pricks. I want it to sting here. No, it balks my forceps and goes and stings elsewhere: not very far away, I admit; but it takes so little to miss the nerve-centre which we wish to get at.
Almost every nerve-centre has above it a higher centre whose function it is directly to repress or subdue the activity of the lower centre. A familiar instance of this is seen in the action of the heart: there are certain nerve-centres which when excited lessen the rate of the heart's beat, and are even able to stop it altogether.
As plainly as one knows a green tree from a dead one, the Crusoe of Grande Pointe recognized one who came from the haunts of men; from some great nerve-centre of human knowledge and power where the human mind, trained and equipped, had piled up the spoils of its innumerable conquests. His whole form lighted up with a new life.
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