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Next remember that these waves are not composed of advancing particles of the medium but pass onwards by the push which each particle in the line of motion gives to the particle next to it, and then you will see that if there were a break of one fifty-thousandth part of an inch in the connecting ether between our eye and any source of light we could not receive light from that source, for there would be nothing to continue the wave-motion across the gap.

I have asserted that I can produce, from rapidly breathing common air at the rate of a hundred respirations a minute, a similar effect to that from ether, chloroform, and nitrous oxide gas, in their primary stages; and I can in this way render patients sufficiently insensible to acute pain from any operation where the time consumed is not over twenty to thirty seconds.

And what was its form? that of a man, with a face radiant as the sun. Now know I how to think of God. He is no longer a vague, incomprehensible existence; an ether floating in space. But He is a living, breathing human form, a Man! in whose image and likeness we were created. Oh, how I thank God that He has revealed this to me!

"It was when I was attacked by violent neuralgia that I made use of this remedy, which since then I have, perhaps, slightly abused. "I had acute pains in my head and neck, and an intolerable heat of the skin, a feverish restlessness. I took up a large bottle of ether, and, lying down, I began to inhale it slowly.

By graduating the face of the gauge when the instrument is at known temperatures, the temperature can be read off directly from the position of the needle. From 100° to 220°F. ether is the liquid used, from thence to 680° it is water, and above the latter temperature mercury is employed.

Eh, there be a lapwing! Lap-py, lap-py, lap- py, there he go! Janny catch un!" And the baby would stretch his arms responsive to Abel's expressive signs, and cry aloud for the vanishing bird. If no living creature crossed the ether, there were the clouds.

It was called the luminiferous ether, to distinguish it from other ethers which had also been imagined, such as electric ether for electrical phenomena, magnetic ether for magnetic phenomena, and so on as many ethers, in fact, as there were different kinds of phenomena to be explained.

That Ether is an originated thing follows from other clauses also in the Chandogya: 'Being only this was in the beginning, one without a second' affirms the oneness of everything before creation, and 'In that all this has its Self implies that everything is an effect of, and hence non- different from, Brahman.

Yet it may not be altogether amiss to reflect that the physicist of to-day is no more certain of his ether than was his predecessor of the eighteenth century of the existence of certain alleged substances which he called phlogiston, caloric, corpuscles of light, and magnetic and electric fluids.

This change is still more strikingly represented by a rose-tree, which is now presented in its natural hues a red flower and green leaves; turning the prism 90 degrees round, we obtain a green flower and red leaves. All these wonderful chromatic effects have definite mechanical causes in the motions of the ether. The principle of interference duly applied and interpreted explains them all.